AMD Ryzen Threadripper Pro 7995WX & 7975WX Specs Leaked

[T0@st]

A pair of Dell Precision workstations have been tested in SiSoftware's Sandra benchmark suite—database entries for the 7875 Tower (Dell 00RP38) and 7875 Tower (Dell 00RP38) reveal specifications of next generation AMD Ryzen Threadripper Pro CPUs. The 32 core 7975WX model was outed a couple of weeks ago, but the Sandra benchmark database has been updated with additional scores. Its newly leaked sibling is getting a lot of attention—the recently benchmarked 7995WX sample appears to possess 96 Zen 4 cores, and 192 threads (via SMT) with a 5.14 GHz maximum single-core boost clock. Tom's Hardware is intrigued by benchmark data showing that the CPU has: "a 3.2 GHz all-core turbo frequency."

There are 12 CCDs onboard, with a combined total of 384 MB of L3 cache (each CCD has access to 32 MB of L3)—therefore Wccftech believes that "this chip is based on the Genoa SP5 die and will adopt the top 8-channel and SP5 socket platform. The chip also features 96 MB of L2 cache and the top clock speed was reported at 5.14 GHz." The repeat benched Ryzen Threadripper Pro 7975WX CPU is slightly less exciting—with 32 Zen 4 cores, 64 threads, 128 MB of L3 cache, and 32 MB of L2 cache. According to older information, this model is believed to have a TDP rating of 350 W and apparent clock speeds peaking at 4.0 GHz—Wccftech reckons that this frequency reflects an all-core boost. They have produced a bunch of comparative performance charts and further analysis—well worth checking out.



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[wNotyarD]

Hey @T0@st, a little typo I noticed:

the recently benchmarked 7975WX sample appears to possess 96 Zen 4 cores, and 192 threads (via SMT) with a 5.14 GHz maximum single-core boost clock.

It should read 7995WX here.

 

[unwind-protect]

More than 5 GHz turbo? That must be a typo.

 

[AnotherReader]

More than 5 GHz turbo? That must be a typo.

It's probably single core boost which doesn't seem unlikely at all. All core clocks would, of course, be significantly lower, and would also depend upon the workload. The EPYC 9654, which has 96 cores too with a 360W TDP, has average clocks up to 3.7 GHz in some AVX-512 workloads. Other workloads see clocks dip to 2.9 GHz.

 

[Denver]

I imagine that TR is another line that would fit the use of Zen4c to maximize MT performance, using a hybrid design(Zen4+Zen4C).

 

[unwind-protect]

It's probably single core boost which doesn't seem unlikely at all.

So far Threadripper single-core turbo stayed away from 5 GHz, or significantly below th highest Ryzen.

We'll see. It would actually be great if it had high single-core turbo. Gotta speed up linking after you compiled in parallel.

 

[AnotherReader]

So far Threadripper single-core turbo stayed away from 5 GHz, or significantly below th highest Ryzen.

We'll see. It would actually be great if it had high single-core turbo. Gotta speed up linking after you compiled in parallel.

The 3995WX had a single core boost of 4.2 Ghz which was 500 MHz less than the Ryzen 3950X. The 5950X clocks up to 5.75 GHz so a 5.1 Ghz single core turbo seems pretty achievable.

 

[unwind-protect]

The 3995WX had a single core boost of 4.2 Ghz which was 500 MHz less than the Ryzen 3950X. The 5950X clocks up to 5.75 GHz so a 5.1 Ghz single core turbo seems pretty achievable.

Well, I would be happy if so.

 

[Eskimonster]

TR with 96 cores is bonkers

 

[Toothless]

The 3995WX had a single core boost of 4.2 Ghz which was 500 MHz less than the Ryzen 3950X. The 5950X clocks up to 5.75 GHz so a 5.1 Ghz single core turbo seems pretty achievable.

Where on earth does a 5950x hit 5.75ghz?

 

[Denver]

Where on earth does a 5950x hit 5.75ghz?

Considering the context of the argument, I assume he meant the 7950x.

 

[AnotherReader]

Where on earth does a 5950x hit 5.75ghz?

That was a typo. I meant the 7950X.

 

[BrainCruser]

More than 5 GHz turbo? That must be a typo.

For Zen 3, 5 GHz turbo is nothing. The 7950X has 5.7GHz. It can probably do 5GHz on multiple cores as long as they are on separate CCDs.
Also do consider how AMD counts "turbo clocks", the 7950X 5.7GHz turns on for a couple of miliseconds. After that it drops down to more like 5.3-5.4GHz which is the realistic sustained single core frequency.
That would put this at 4.6-4.7GHz sustained single core/few core frequency, and 5GHz on milisecond timescales.

 

[Wirko]

Also do consider how AMD counts "turbo clocks", the 7950X 5.7GHz turns on for a couple of miliseconds. After that it drops down to more like 5.3-5.4GHz which is the realistic sustained single core frequency.
That would put this at 4.6-4.7GHz sustained single core/few core frequency, and 5GHz on milisecond timescales.

If true, I'm wondering why it's even useful. A 0.3 MHz additional boost for a few milliseconds won't make the system more responsive.

 

[AnotherReader]

For Zen 3, 5 GHz turbo is nothing. The 7950X has 5.7GHz. It can probably do 5GHz on multiple cores as long as they are on separate CCDs.
Also do consider how AMD counts "turbo clocks", the 7950X 5.7GHz turns on for a couple of miliseconds. After that it drops down to more like 5.3-5.4GHz which is the realistic sustained single core frequency.
That would put this at 4.6-4.7GHz sustained single core/few core frequency, and 5GHz on milisecond timescales.

TPU's testing indicates that under a sustained single threaded load, 5.75 GHz can be sustained indefinitely.

 

[mahirzukic2]

Oh man, I would like to get me some 96 cores for the financial modeling and simulation that I do.

 

[wNotyarD]

Oh man, I would like to get me some 96 cores for the financial modeling and simulation that I do.

Numbers go BRRRRRRRRR