Tried i9 13900K, 50% gain compared to 12900K

At 7 pm yesterday, the performance of the Intel core i9 13900K was leaked on the Bilibili page of ECSM_Official in conjunction with OneRaichu. In this test, ECSM announced the launch of Raptor lake on September 28, 2022. This new range of processors still carved at 10 nm will be able to reach frequencies of 500 Mhz higher than Alder lake. Ecore doubled and L2/L3 cache increased.

The test configuration used

  • Processor1: Intel Core i9 13900K
  • Processor2: Intel Core i9 12900KF
  • DRAM: DDR5-6000 CL30-38-38-76, DDR4-3600 CL17-19-19-39, Trefi=262143, other settings=Auto.
  • Motherboard: Z690 Taichi Razer Edition and Z790****
  • BIOS version: 12.01 and ****
  • Graphics processor: AMD Radeon RX 6900 XTXH OC 2700 MHz
  • Cooling: NZXT Kraken X73

The frequencies of the i9 13900K have been revised upwards, as well as the cache.

For Pcore we have:

  • 1-2C 58x / 3-8C 55x at 13900K
  • 1-2C 52x / 3-8C 49X at 12900K
  • 8x 2 MB L2 for 13900K
  • 8x 1.25MB L2 for 12900K
  • The L3 cache ranges from 30 MB to 36 MB

Here we have an increase in L2 cache, which is 6 MB by 8 cores met again. With a gain of 600 Mhz, this 13900K risks coming off a Ryzen 9 7950X that hasn’t been released yet.

For Ecore we have:

  • 1-16C 43X at 13900K
  • 1-4C 39x / 5-8C 37X at 12900K
  • 4x 4 MB L2 for 13900K
  • 2x 2 MB L2 for 12900K

As we can see, Ecores doubles their L2 cache per pack of 4 Ecores, in total we have 4x more cache in Ecores. Adding to this the frequency gain of 400 to 600 Mhz and the gain of 8 Ecore, we have here a significant gain in overall performance.

A new cache configuration

Unlike Alder lake, Raptor lake completely separates the frequency from RING between Pcore and Ecore. As a result, the cache frequency can stay at 4.7Ghz without falling to 3.6Ghz like Alder lake. Here we are talking about downgrading from 5Ghz to 4.6Ghz. So there is no clear access penalty when communicating between Ecore and Pcore.

As we can see, the latency between Pcore and Ecore is from 33 to 37 ns to 31 to 34 ns. With a drop of less than 30 ns when the Pcore 8 communicates (Thread 14 and 15).

Raptor lake vs Alderlake performance

In this test, we have a lot of performance information, from AIDA to video games to Cinebench and 3DMark. As we can see, this 13900K Raptor lake offers a significant performance gain compared to the 12900K Alderlake.


In AIDA64, we immediately noticed a gain in bandwidth in the L3 cache. This is due to the new cache configuration. L2 and L1 caches gain throughput thanks to a higher frequency of cores but at the cost of latency due to a larger cache. This increase in L2 cache also causes an increase in memory latency.

Cinebench and IPC

In cinebench, we can see that the score single-core from 2020 to 2292 in R23. on multicore, we go from 27682 to 40662, which is a 47% increase in multi-core performance.

If we go into details, we can see that the CPI in the same frequency increased from 2.37% to 5.56% depending on benchmark.


In the 3D score this time, we have gains of 20.81% to 45.8%. At a score of 25267 for 5.5Ghz allcore, we first see what a 12900KS can offer at 5.5GHz with a overclocking serious memory and CPU.


We now switch to CPU-Z, we have a gain of 14.5% in single-core and 49% in multi-core compared to 12900K.

7-zip and Winrar

Another performance index here is the compression and decompression of 7-zip. Here we get 55.6% in decompression and 15.2% in compression. Heterogeneous gains, should be investigated on our test platforms to determine if it comes from RAM.

Performance Summary

To finish this comparison 12900K vs 13900K, a summary table allows us to see the total profit of multicore according to all benchmarks tested.

We can see that the average profit is around 41.78%, while the max and min are 76.72% and 0.33%.

Increase game performance

Let’s start with Counter strike Global Offensive, of superior quality. Here, the gain is 13.7% at 1080p with DDR5 and 11.8% with DDR4. The 1440p captures are in the same order.

on Shadow of the Tomb Raider in high quality TXAA. We have a gain of 7.3% in 1080p and DDR5, With DDR4 we have an 8.15% gain. At 1440P the gains ranged from 0% to 1.06%, very low by itself.

on See Dogs Legion at high quality, the gain at 1440p is absent. But we noticed a gain from 4.7% to 3.26% in 1080p.

Let’s finish this round with Far cry 6, in high quality. Here, the 1080p gain goes from 3.9% with DDR4 to 4.06% with DDR4. At 1440p, the gain is around 0.06%, a zero gain in itself.

Our first opinion about this 13900K

It goes without saying that this Intel core i9 13900K is a performance monster. It manages to hold a frequency of 5.5 GHz out of the box. Where the 12900KS is still very good, it struggles to do it once overclocked. We add to this the frequency gain of Ecore and the gain of 8 Ecore and we have Ryzen 9 7950X Killer.

Regarding temperatures, we don’t have much information, but during this test the 13900K was running under a simple AIO Z73 from NZXT. And, with 343W consumption at 1.4V under heavy load on Cinebench R23, the latter does not throttle.

We look forward to getting our hands on copies to see how far they can go. Our community also has a lot to look forward to, especially in terms of 3DMark.

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