Intel Core i9-13900K and i5-13600K Review: Raptor Lake Brings More Bite
by Gavin Bonshor on October 20, 2022 9:00 AM ESTCPU Benchmark Performance: Science
Our Science section covers all the tests that typically resemble more scientific-based workloads and instruction sets. For our 2023 CPU suite, we've also added SciMark 2.0 which measures numerical kernels and various computational routines found in numeric coding.
We are using DDR5 memory on the Core i9-13900K, the Core i5-13600K, the Ryzen 9 7950X, and Ryzen 5 7600X, as well as Intel's 12th Gen (Alder Lake) processors at the following settings:
- DDR5-5600B CL46 - Intel 13th Gen
- DDR5-5200 CL44 - Ryzen 7000
- DDR5-4800 (B) CL40 - Intel 12th Gen
All other CPUs such as Ryzen 5000 and 3000 were tested at the relevant JEDEC settings as per the processor's individual memory support with DDR4.
Science
Outside of the 3DPM 2.1 AVX test (only Ryzen 7000 has AVX-512 enabled), the rest of the results are conclusive, the Core i9-13900K is very good as it dominates things in our SciMark 2.0 tests.
It is worth noting that in both 3DPM 2.1 (non-AVX) and in yCruncher, the AMD Ryzen 9 7950X is the clear winner in that battle, but even the Core i5-13600K does well against the previous Intel 12th Generation chips.
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Nero3000 - Thursday, October 20, 2022 - link
Correction: the 12600k is 6P+4E - table on first page ReplyHixbot - Thursday, October 20, 2022 - link
I am hoping for an high frequency 8 core i5 with zero ecores and high cache. It's would be a gamer sweet spot, and could counter the inevitable 3d cache Zen 4. Replynandnandnand - Friday, October 21, 2022 - link
big.LITTLE isn't going away. It's in a billion smartphones, and it will be in most of Intel's consumer CPUs going forward.Just grab your 7800X3D, before AMD does its own big/small implementation with Zen 5. Reply
HarryVoyager - Friday, October 21, 2022 - link
Honestly, I'm underwhelmed by Intel's current big.LITTLE setup. As near as I can tell, under load the E cores are considerably less efficient than the P cores are, and currently just seem to be there so Intel can claim multi-threading victories with less die space.And with the CPU's heat limits, it just seems to be pushing the chip into thermal throttling even faster.
Hopefully future big.LITTLE implementations are better. Reply
nandnandnand - Friday, October 21, 2022 - link
Meteor Lake will bring Redwood Cove to replace Golden/Raptor Cove, and Crestmont to replace Gracemont. Gracemont in Raptor Lake is the same as in Alder Lake except for more cache, IIRC. All of this will be on "Intel 4" instead of "Intel 7", and the core count might be 8+16 again.Put it all together and it should have a lot of breathing room compared to the 13900K(S).
8+32 will be the ultimate test of small cores, but they're already migrating on down to the cheaper chips like the 13400/13500. Reply
Hixbot - Saturday, October 22, 2022 - link
Yes it does seem backwards that the more efficient architecture is in the P core. Reducing power consumption for light tasks seems better to keep it on the P core and downclock. I don't see the point of the "e" cores as effiency, but rather academic multithreaded benchmark war. Which isn't serving the consumer at all. Replydeil - Monday, October 24, 2022 - link
E is still useful, as you get 8/8 cores in space where you could cram 2/4. I agree E for efficiency should be B as background to make it clearer what's the point. They are good for consumers as they offer all the high speed cores for main process, so OS and other things dont slow down.I am not sure if you followed, but intel cpu's literally doubled in power since they appeared, and at ~25% utilization, cpu's halved power usage. What you should complain about is bad software support, as this is not something that happens in the background. Reply
TEAMSWITCHER - Monday, October 24, 2022 - link
I don't think you are fully grasping the results of the benchmarks. Compute/Rendering scores prove that e-cores can tackle heavy work loads. Often trading blows with AMD's all P-Core 7950X, and costing less at the same time. AMD needs to lower all prices immediately. Replyhaoyangw - Monday, October 24, 2022 - link
That's an oversimplification actually, P-cores and E-cores are both efficient, just for different tasks. The main efficiency gain of P-cores is it's much much faster than E-cores for larger tasks. Between 3 and 4GHz, P-cores are so fast they finish tasks much earlier than e-cores so total energy drawn is lower. But E-cores are efficient too, just for simple tasks(at low clockspeeds). Below 3GHz and above 1GHz, e-cores are much more efficient, beating P-cores in performance while drawing less power.Source: https://chipsandcheese.com/2022/01/28/alder-lakes-... Reply
Great_Scott - Friday, November 25, 2022 - link
Big.LITTLE is hard to do, and ARM took ages and a lot of optimization before phone CPUs got much benefit from it.The problem of the LITTLE cores not adding anything in the way of power efficiency is well-known.
I'm saddened that Intel is dropping their own winning formula of "race-to-sleep" that they've successfully used for decades for aping something objectivly worse because they're a little behind in die shrinking. Reply