Amd threadripper: AMD’s 64-Core Ryzen Threadripper Pro 7985X Gets Tested on Boulder Gulch Platform

AMD’s 64-Core Ryzen Threadripper Pro 7985X Gets Tested on Boulder Gulch Platform

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AMD is rumored to launch its next-generation Ryzen Threadripper Pro CPUs sometime this September, so it is not surprising that the company’s partners are testing the company’s codenamed ‘Boulder Gulch’ platform along with a 64-core Ryzen Threadripper Pro 7985X processor. Somehow, the performance numbers of the said system’s Agisoft Metashape 1.8.5 benchmarks ended up in Puget’s public database, revealing details about the eight-channel memory subsystem of the upcoming CPU. 

The Boulder Gulch platform discovered by @BenchLeaks features a 64-core AMD Ryzen Threadripper Pro 7985X CPU and comes equipped with 256GB of DDR5-5600 memory using eight 32GB memory modules as well as Nvidia’s RTX A5000 graphics card. In fact, the main thing that strikes the eye is that AMD’s next-generation Ryzen Threadripper Pro CPUs will feature an eight-channel DDR5-5600 memory subsystem, in contrast to the 12-channel subsystem AMD uses for the EPYC Genoa counterparts.  

Truth to be told, we still do not know for sure which socket AMD’s next-generation Ryzen Threadripper Pro CPUs adopt, but we can speculate that it is going to use a socket derived from SP6 for EPYC ‘Siena’ processors, which indeed supports eight DDR5 memory channels. Going SP6 also means the forthcoming Ryzen Threadripper Pro CPUs will top at 64 cores.

Eight DDR5-5600 memory channels will provide AMD’s next-generation Ryzen Threadripper processors 358.4 GB/s of bandwidth, which means 5.6 GB/s per core in case of a 64-core CPU, which is a stark contrast with AMD’s current-generation Ryzen Threadripper 5000-series processors. The latter has an eight-channel DDR4-3200 memory subsystem with a 204.8 GB/s peak memory bandwidth or 3.2 GB/s per core for a 64-core CPU.

There is a number of reasons why AMD would prefer to equip its next-generation Ryzen Threadripper 7000-series processors with an eight-channel memory subsystem and not opt for a 12-channel memory subsystem featured by the latest EPYC ‘Genoa’ CPUs. Firstly, it is physically hard to install an SP5 (6096-pin) processor socket onto an E-ATX motherboard. Secondly, it is expensive to route 12 DDR5 memory channels, and it is impossible to install 12 memory slots onto an E-ATX motherboard without reducing the number of available PCIe slots, but expandability is a must-have feature for workstations. Thirdly, it is prohibitively expensive to populate all 12 memory channels.

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Row 0 – Cell 0	Ryzen Threadripper 7985WX Best Result	Ryzen Threadripper 7985WX Worst Result	Xeon W7-3455
CPU Configuration	64C/128T	64C/128T	24C/48T
Metashape Pro 1.8.5 | Rock Model Total Time	79.7	98.6	137.6
Metashape Pro 1. 8.5 | School Map Total Time	263.8	260.6	307.3

When it comes to the benchmark results, they don’t really show the potential of the next-gen Threadripper. Agisoft Metashape is a program that generates 3D spatial data using photogrammetric processing of images. The software uses GPU acceleration to speed things like depth map calculation, dense point cloud construction, mesh building, and texture generation, so it may not be the best benchmark for CPUs in general. Furthermore, the 1.8.5 version of Metashape is a rather new version, so the closest system we could find with Nvidia’s RTX A5000 graphics card was based on Intel’s 24-core Xeon w7-3455, so the actual performance numbers that were published do not show the potential of AMD’s upcoming workstation CPU.

For now, we’re only talking about workstation-oriented Ryzen Threadripper Pro 7000-series processors and not high-end desktop-bound Ryzen Threadripper Pro 7000-series that may have fewer memory channels and/or other peculiarities. Furthermore, remember that the information is preliminary and comes from an unofficial source, so even if it is accurate for now, this does not mean that actual products will have similar specifications.    

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Anton Shilov is a Freelance News Writer at Tom’s Hardware US. Over the past couple of decades, he has covered everything from CPUs and GPUs to supercomputers and from modern process technologies and latest fab tools to high-tech industry trends.

AMD Threadripper Pro 5995WX and 5975WX Review: Sheer Threaded Dominance

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Threadripping with 64 Zen 3 cores.

Editor’s Choice

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Tom’s Hardware Verdict

The Threadripper Pro 5995WX and 5975WX deliver simply unmatched performance and capabilities courtesy of industry-leading core counts and connectivity that easily outstrips all competitors.

TODAY’S BEST DEALS

Pros

• +

  Unmatched performance in threaded work

• +

  Competitive single-thread performance

• +

  Industry-leading 128 lanes of PCIe 4.0

• +

  Octo-channel memory

Cons

• –

  Expensive chip pricing

• –

  Expensive motherboard pricing

• –

  Limited DIY motherboard options

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Today’s best AMD Ryzen Threadripper Pro 5975WX deals

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The new 64-core AMD Threadripper Pro 5995WX and 32-core Threadripper Pro 5975WX are finally available at retail, breaking free from the confines of pre-built OEM systems to contend for a spot on our list of best CPUs for workstations. They have a tough act to follow: AMD’s previous-gen Threadripper CPUs delivered a crushing blow to the entrenched Intel’s HEDT and workstation lineup, with the consumer models essentially muscling Team Blue out of the high end desktop (HEDT) market entirely while the Pro models relegated Intel to an also-ran in the workstation market.

But there’s a problem for enthusiasts — Intel abandoned the consumer-oriented high end desktop (HEDT) market after its crushing defeat three years ago, and now that AMD is the only game in town for HEDT chips, it’s also dropping the segment.

AMD says it will no longer make the more affordable non-Pro Threadripper models. Instead, we get the Threadripper Pro chips that are priced for professionals and come with all the trimmings to justify the price tag, like the Zen 3 architecture, clock speeds up to 4.5 GHz, 128 lanes of PCIe 4.0, and eight DDR4 memory channels that deliver unmatchable workstation performance.

AMD’s original Threadripper chips (and supporting motherboards) were geared for HEDT, meaning they came with higher core counts and access to more memory and PCIe connectivity than mainstream desktop PC chips. However, pricing was still mostly within reach for enthusiasts. After several generations, AMD released its Threadripper Pro models with twice the number of memory channels (eight) for professional users and unique motherboards, but the beefy chips carried the eye-watering pricing to match their incredible performance.

AMD then maintained two lineups, one for consumers and one for professional workstations, but they had different pricing tiers even though they were based on the same underlying architecture. AMD changes that with the Threadripper 5000 WX-series, unifying the standard HEDT models with the professional lineup, meaning there’s now only one line of chips and motherboards for both OEM workstations and DIYers — Threadripper Pro and the WRX80 platform. 

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AMD Ryzen Threadripper Pro 5000 WX-Series Specifications

Row 0 – Cell 0	Cores / Threads	MSRP/SEP	Base / Boost (GHz)	L3 Cache (MB)	TDP	PCIe
Threadripper Pro 5995WX	64 / 128	$6,499	2. 7 / 4.5	256 (8CCD + I/OD)	280W	128
Threadripper Pro 5975WX	32 / 64	$3,299	3.6 / 4.5	128 (4CCD + I/OD)	280W	128
Threadripper Pro 5965WX	24 / 48	$2,399	3.8 / 4.5	128 (4CCD + I/OD)	280W	128
Threadripper 5955WX	16 / 32	OEM-only	4.0 / 4.5	64	280W	128
Threadripper Pro 5945WX	12 / 24	OEM-only	4. 1 / 4.5	64	280W	128

The problem is AMD has left the two lower-end 12- and 16-core Pro models as OEM-only, so they won’t come to retail. That means entry-level pricing for Threadripper Pro starts at $2,399 for a 24-core 5965WX — and that’s before you purchase the requisite super-pricey motherboard (more below) and enough memory to fill eight channels. You’ll pay $3,299 to step up to the 32-core Threadripper Pro 5975WX, and $6,499 for the 64-core 5995WX, both representing big markups over the prior-gen chips.

It does make some sense for AMD to keep the 12- and 16-core models as OEM only, given that Ryzen 5000 and the soon-to-be-launched Zen 4 Ryzen 7000 mainstream platforms already support up to 16 cores. However, those platforms don’t have quad-or octo-channel memory or more than 20 PCIe lanes, a common reason for enthusiasts to step up to HEDT. Unlike the previous-gen Pro chips, all of the Threadripper Pro 5000 WX chips do support core and memory overclocking, though. That’s a slight consolation prize, but only a few motherboards support the feature.

All of this means that AMD positions the Threadripper Pro chips squarely for the workstation market, and there they deliver. Like its predecessor, the 64-core Threadripper Pro 5995WX is a specialized beast that delivers unbeatable performance in workloads that can leverage parallelism. That said, some applications simply don’t benefit from 64 cores, so you should know your workload before you pull the trigger. However, you won’t find this many cores or PCIe lanes in a single-socket Intel workstation — the Intel Xeon W-3300 lineup is outclassed with its maximum of 38 cores and 64 PCIe lanes from a single chip. You’ll have to pay a heart-stopping $6,499 for the retail 5995WX, though.

The $3,299 32-core Threadripper Pro 5975WX is the more rational choice for most professionals, again delivering stellar performance while offering all of the connectivity of its more expensive counterpart. This chip offers the lion’s share of the 5995WX’s performance and isn’t as subject to finicky performance in some workloads.

• AMD Ryzen Threadripper Pro 5975WX (Grey AMD Ryzen Threadripper) at Amazon for $2,899

We put both of these chips through a test suite of professional-class applications, like SPECworkstation and SPECviewperf, along with our standard application test suite. And yes, we put the chips through our gaming test suite to see how they fare.

Spoiler alert: They match AMD’s fastest standard gaming chips. 

Threadripper Pro 5995WX and 5975WX Specifications and Pricing

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AMD Ryzen Threadripper Pro 5000 WX-Series Specifications

Row 0 – Cell 0	Cores / Threads	MSRP/SEP	Base / Boost (GHz)	L3 Cache (MB)	TDP	PCIe	Memory
Threadripper Pro 5995WX	64 / 128	$6,499	2. 7 / 4.5	256	280W	128	Eight-Channel DDR4-3200
Xeon W-3375	38 / 76	$4,499	2.5 / 4.0	57	270W	64	Eight-Channel DDR4-3200
Threadripper Pro 3995WX	64 / 128	$5,489	2.7 / 4.2	256	280W	128	Eight-Channel DDR4-3200
Threadripper 3990X	64 / 128	$3,990	2.9 / 4.3	256	280W	72	Quad DDR4-3200
Threadripper Pro 5975WX	32 / 64	$3,299	3. 6 / 4.5	128	280W	128	Eight-Channel DDR4-3200
Xeon W-3365	32 / 64	$3,499	2.7 / 4.0	48	270W	64	Eight-Channel DDR4-3200
Threadripper Pro 3975WX	32 / 64	$2,749	3.5 / 4.2	128	280W	128	Eight-Channel DDR4-3200
Threadripper 3970X	32 / 64	$1,999	3.7 / 4.5	128	280W	64	Quad DDR4-3200
Threadripper Pro 5965WX	24 / 48	$2,399	3. 8 / 4.5	128	280W	128	Eight-Channel DDR4-3200
Xeon W-3345	24 / 48	$2,499	3.0 / 4.0	36	250W	64	Eight-Channel DDR4-3200
Threadripper 3960X	24 / 48	$1,399	3.8 / 4.5	128	280W	64	Quad DDR4-3200

Threadripper Pro chips come with the ‘WX’ suffix to denote they are designed for the workstation market. AMD didn’t introduce more cores with the two top-end models, but they’re faster due to the step up from the Zen 2 architecture to Zen 3. 

AMD has increased prices on the 64-core model by $1,000 and bumped up the 32-core chip by $550. All retail Threadripper Pro models have a top dual-core clock speed of 4.5 GHz, a generational increase of 300 MHz for the 5955WX and 5975WX. The 24-core 3975WX didn’t have a previous-gen Pro counterpart, but its clock speeds are the same as the consumer 3960X. We also see a 100 MHz improvement to the base clock speed on all models except the 64-core, 128-thread Threadripper Pro 5995WX.

The Threadripper Pro chips have the same 280W TDP envelope as the previous-gen chips. Notably, the 280W limit is likely imposed by the sWRX80 socket design, so AMD doesn’t have much room to increase frequencies for the highest-end part. As we’ve seen in previous tests, the core-heavy Threadripper models reach peak power consumption long before all of the cores are fully saturated, but the support for overclocking/PBO will help break those bonds. 

Threadripper Pro has 128 PCIe 4.0 lanes (the CPU exposes 120 lanes to the user) compared to Intel’s 64 lanes, an advantage because most workstations have plenty of additives, like GPU accelerators, NVMe storage, and high-speed NICs.

Except for the quad-channel Ryzen Threadripper 3000 chips, all of the above AMD and Intel processors support eight channels of DDR4-3200 ECC memory. Threadripper Pro supports a maximum of 2TB of memory in UDIMM, RDIMM, and LRDIMM flavors, while Xeon W-3300 supports up to 4TB. That’s not to mention that AMD’s core/thread counts weigh in at 64/128 compared to Intel’s 38/76. 

As you can see, AMD slightly undercuts Intel’s suggested pricing for the 24- and 32-core models, but the flagship 64-core 5995WX costs $2000 more than the highest-end 38-core Xeon W-3375.

The Threadripper Pro chips drop into single-socket WRX80 motherboards, so existing WRX80 motherboards support the 5000 series chips after a BIOS update. The LGA4094 socket (aka Socket sWRX8) is physically identical to the previous-gen Threadripper consumer and EPYC data center platforms, so coolers are also compatible. However, the socket features different pin assignments: AMD enabled some pins to support more memory channels and PCIe lanes than are available on the old Threadripper consumer chips and disabled certain pins used to support multiple sockets on EPYC platforms.  

Here’s how Threadripper has progressed over the years:

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AMD Threadripper WRX80 Motherboards

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It isn’t all crimson and roses, though. The X399 platform was somewhat reasonably priced given its feature set, with most motherboards starting at around $350 (there was even a $240 model). Unfortunately, as you can see in the above table, we can’t expect that kind of pricing with WRX80 motherboards — there’s a limited number of WRX80 motherboards available to DIYers, and they start at $700. That isn’t surprising given the copious slathering of cost-additive PCIe 4.0 lanes and the necessary retimers. WRX80 prices top out at $1,300, but two of the motherboards on AMD’s list aren’t available yet.

You’ll also need to be careful with motherboard selection — many vendors designed their motherboards around the previous-gen Threadripper Pro family, which wasn’t overclockable. As such, the Supermicro and ASUS WRX80 motherboards don’t support overclocking. Given the relatively poor selection, high pricing, and general unavailability of many models, AMD and the motherboard makers have their work cut out for them to make this platform more accessible to DIYers.

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(Image credit: AMD)(Image credit: AMD)(Image credit: AMD)(Image credit: AMD)(Image credit: AMD)

Threadripper Pro is based on a lightly-modified EPYC Milan design, so they move up from Zen 2 to the Zen 3 architecture. The Threadripper Pro chips still top out at an incredible 256MB of L3 cache on the highest-end models, but the cache is now a contiguous 32MB block for each eight-core cluster, improving performance over the prior gen. In contrast, Xeon W-3300 tops out at a paltry 57MB. The chips also bear all of the other benefits of Zen 3, like a 19% increase in instruction per cycle (IPC) throughput.

The chips support AMD’s Pro Security, Manageability, and Business Ready suites (18-month software stability, 2-year chip availability), an area where Intel’s competing chips are lacking. AMD’s Pro Security suite includes the same Secure Architecture, Memory Guard (memory encryption with a slight performance penalty), and Secure Processor features as the prior-gen Threadripper Pro models, but AMD added Shadow Stack, a mechanism to counter control flow attacks. In contrast, Intel’s Xeon W-3300 series doesn’t have an enterprise-class feature set.

• MORE: AMD vs Intel
• MORE: Zen 4 Ryzen 7000 All We Know
• MORE: Raptor Lake All We Know

AMD Ryzen Threadripper Pro 5975WX: Price Comparison

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Paul Alcorn is the Deputy Managing Editor for Tom’s Hardware US. He writes news and reviews on CPUs, storage and enterprise hardware.

Processor AMD Ryzen Threadripper 3990X TRX4 (100-100000163WOF) (2.9GHz) Box w/o cooler – 1527909

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Processor AMD Ryzen Threadripper 3990X TRX4 (100-100000163WOF) (2.9GHz) Box w/o cooler

Price: 313240 ₽

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Features

EAN code	730143312110
Key features
Series/Family (Proc)	Ryzen Threadripper
Kernel name	Castle Peak
Number of cores	64
Socket	sTRX4
Processor frequency	2. 9 GHz
Heat dissipation	280 W
Maximum temperature	95°C
Number of threads	128
Bit depth	64bit
L3 cache	256 MB
PCI Express version	PCI Express 4.0
Unlocked multiplier	YES
Lithograph	7 nm
Delivery type	BOX without cooler
RAM
Memory type	DDR4
Maximum memory	256 GB
Memory frequency support	3200 MHz
Number of memory channels	4

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Ryzen Threadripper CPU List | AMD news

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The first generation of AMD Ryzen Threadripper processors was introduced at the end of August 2017. It quickly became popular among enthusiasts and users who need high power, but server solutions are too expensive.
2nd generation came out a year later, in August 2018, offering an improved Zen + architecture. In 2020, Advanced Micro Devices introduced the 3rd generation Ryzen Threadripper, built on the Zen2 architecture and receiving a new STR4 socket.

List of AMD Ryzen Threadripper 3rd generation processors (3000 series). sTR4 socket.

Model	Architecture / Tech. process	Cores (Threads)	Frequencies Base/Turbo	L2/L3 cache	Memory	TWD	GPU
RyzenTR PRO 3995WX	Zen2(7nm)	64(128)	2. 7/4.2Ghz	33/262Mb	DDR4 3200	280	—-
RyzenTR 3990X	Zen2(7nm)	64(128)	2.9/4.3Ghz	33/262Mb	DDR4 3200	280	—-
RyzenTR PRO 3975WX	Zen2(7nm)	32(64)	3.5/4.2Ghz	16/131Mb	DDR4 3200	280	—-
RyzenTR 3970X	Zen2(7nm)	32(64)	3.7/4.5Ghz	16/128Mb	DDR4 3200	280	—-
RyzenTR 3960X	Zen2(7nm)	24(48)	3.8/4.5Ghz	16/131Mb	DDR4 3200	280	—-
RyzenTR PRO 3955WX	Zen2(7nm)	16(32)	3.9/4.3Ghz	8/65Mb	DDR4 3200	280	—-
RyzenTR PRO 3945WX	Zen2(7nm)	12(24)	4. 0/4.3Ghz	6/65Mb	DDR4 3200	280	—-

AMD Ryzen Threadripper 2nd generation processor list (2000 series). TR4 socket.

Model	Architecture / Tech. process	Cores (Threads)	Frequencies Base/Turbo	L2/L3 cache	Memory	TWD	GPU
RyzenTR 2990WX	Zen+(12nm)	32(64)	3.0Ghz/4.2Ghz	16Mb/64Mb	DDR4 2933	250	—-
RyzenTR 2970WX	Zen+(12nm)	24(48)	3.0Ghz/4.2Ghz	12Mb/64Mb	DDR4 2933	250	—
RyzenTR 2950X	Zen+(12nm)	16(32)	3.5Ghz/4.4Ghz	8Mb/32Mb	DDR4 2933	180	—-
RyzenTR 2920X	Zen+(12nm)	12(24)	3.