There are lots of leaks on Raptor lake for sure, it seems that intel has lost any and all control over their ES samples. This round Intel Core i5-13600K and Core i7-13700K QS CPUs have been put to the test.

A PRC bilibili user pushed the next Intel Core i5-13600K and Core i7-13700K CPUs through 10 games, including 3DMark Fire Strike and Time Spy. GeForce RTX 3090 Ti was used to achieve 1080p, 1440p, and 2160p. Both CPUs are QS or Qualification Samples, which implies they'll be similar to sale chips unless last-minute difficulties arise. The CPUs were tested on a DDR4 and DDR5 ASRock Z690 Steel Legends WiFi 6E motherboard. The DDR4 RAM was operating at 3600 MHz with sluggish timings of 18-22-22 in gear 1, while the DDR5 memory was running at 5200 MHz, most likely at 40-40-40 timings, while the modules were rated for 6400 MHz.

In several of the games evaluated, the increase was 1% or less to 3% or 4% compared to its predecessor. In several games—at specified resolutions—DDR5 RAM improved performance by 15-20%. FarCry 6 at 4K is GPU constrained. Therefore a faster CPU doesn't assist, as the figures below show. DDR5-equipped PCs showed a performance decline. Thus it's impossible to draw definitive conclusions from this test. Both CPUs should give a 5% speed boost at 1440p with DDR5 memory, assuming the game isn't GPU constrained.

Better performance necessitates much higher power usage.
The tests demonstrate a considerable boost in performance for both models: the i7-13700K gets a 10% rise in the single-core test and a 32-34 percent gain in the multi-thread test. This performance boost is slightly lower with the i5-13600K, at 5% and 39-41 percent.

However, as performance improves, so does power consumption. The 12700K's power usage of 188 watts is much greater than that of the i7-13700 244W, K's, while the i5-13600energy K's need likewise rises by 30W to 178W when compared to its predecessor.

Benchmarked: Intel Core i5-13600K and Core i7-13700K QS CPUs