Intel Core i9-14900K, Core i7-14700K and Core i5-14600K Review: Raptor Lake Refreshed
by Gavin Bonshor on October 17, 2023 9:00 AM ESTSPEC2017 Multi-Threaded Results
Single-threaded performance is only one element in regard to performance on a multi-core processor, and it's time to look at multi-threaded performance in SPEC2017. Although things in the single-threaded SPEC2017 testing showed that both Zen 4 and Raptor Lake were consistently at loggerheads, let's look at data in the Rate-N multi-threaded section.
Looking at multi-threaded performance in SPECint2017, the only test that seemed to benefit from the increased core clock speeds of the Core i9-14900K was in 502.gcc_r, which is a simulation based on the GNU C compiler that analyzes source code inputs and compiles a few large files instead of many different small files. In this instance, we saw 34% more performance with the Core i9-14900K than the Core i9-13900K, but we are currently re-testing to ensure this isn't an anomaly and is an accurate representation.
Of course, it's also fair to assume that the clock speed increase yields a benefit, although we aren't seeing this translate to more performance in other tests within the SPECint2017 MT suite.
The last section of our SPEC2017 testing is the SPECfp2017 MT, and once again, we are seeing some gains, but they are very marginal at most. We did actually see some regression in one test, 511.povray_r, which represents a 2560 x 2048 pixel rendering of a chess board and is saved as a Targa (.tga) file extension. Given that we also run a specific Persistence of Ray tracing (POVRay) test in our suite, and we didn't see this regression here, it could be an anomaly, and as we've stated, we are re-testing SPEC to eliminate any of these anomalies or variations.
Overall, in both ST and MT SPEC2017 suite performance, the Intel Core i9-14900K doesn't represent significant gains in performance over the Core i9-13900K.
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DabuXian - Tuesday, October 17, 2023 - link
so basically a mere 6% better Cinebench MT score at the cost of almost 100 extra watts. I dunno in what universe would anyone want this instead of a 7950x.yankeeDDL - Tuesday, October 17, 2023 - link
At platform level it is over 200W difference. Impressive.And I agree, nobody in teh right mind should get Intel over AMD, unless they have very specific workload in which that 6% makes a difference worth hundreds/thousand of dollars in electricity per year.
schujj07 - Tuesday, October 17, 2023 - link
If you have a workload like that then you run Epyc or Threadripper as the task is probably VERY threaded.shaolin95 - Thursday, December 21, 2023 - link
😆😆😆😆😆😆 AMDrip fanboys are hilarious and delusionalAnd what bullshit connect about the electricity bill per year... thousands.. really???? Dang kid, you are hilariously sad
lemurbutton - Tuesday, October 17, 2023 - link
Who cares about CInebench MT? It's a benchmark for a niche software in a niche.powerarmour - Wednesday, October 18, 2023 - link
Wouldn't buy the 7950X either, not interested in any CPU that draws >200W unless I'm building a HEDT workstation.shabby - Tuesday, October 17, 2023 - link
Lol @ the power usage, this will make a nice heater this winter.yankeeDDL - Tuesday, October 17, 2023 - link
I find it amazing. It takes more than 200W MORE to beat the 7950.The difference in efficiency is unbelievable.
Buying Intel today still makes no sense unless that extra 5-10% in some specific benchmark really make a huge difference. Otherwise it'll cost you dearly in electricity.
bug77 - Thursday, October 19, 2023 - link
While Anand has a policy of testing things out-of-the-box, which is fine, it is well known ADL and RPL can be power constrained to something like 125W max, while losing performance in the single digits range.It would be really useful if we had a follow up article looking into that.
yankeeDDL - Tuesday, October 17, 2023 - link
So, 6% faster than previous gen, a bit (10%?) faster than AMD's 7950.Consuming over 200W *more* than the Ryzen 7950.
I'd say Intel's power efficiency is still almost half that of the ryzen. It's amazing how far behind they are.