In a nutshell: It is reported that the Intel Core i9-13900K will have a higher clock speed than its predecessor and will have twice as many E cores, which will significantly improve multi-threading performance. However, it will still use an Intel 7 node, meaning all of these benefits will make it even more power hungry and harder to cool than current Alder Lake chips.

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Hardware Browser Extremeplayer posted some tests of the Core i9-13900K qualification sample they were able to get. This processor should provide nearly identical performance to the shipping products as it has a finite clock speed, unlike engineering samples we’ve seen before.

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This late sample has an all-P-core turbo clock of 5.5GHz and tops out at a whopping 5.8GHz when only two cores are loaded. In both cases it is 300 MHz faster than the pre-combined i9-12900KS.

Raptor Lake will rely on the same Intel 7 manufacturing process as Alder Lake, so higher clock speeds come at the cost of higher power consumption and therefore more heat. During testing, ExtremePlayer saw the power consumption of the package exceed 400W, and the 360mm AIO was unable to prevent CPU throttling.

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The Core i9-13900K really shines in synthetic benchmarks, showing a 10 percent performance boost in single-threaded benchmarks over the current generation. i9-12900K. This improvement seems to have come mainly from the increase in clock speed, as the difference in IPC performance was within the margin of error.

Meanwhile, multi-threaded performance averaged a whopping 35 percent increase, although that can be attributed to the eight extra E-cores. Those small cores also clock up to 4.3GHz, up 400MHz more than the 12900K.

Gaming performance was also verified using 32GB DDR5-6400 memory and RTX 3090 Ti. At 1080p, the Raptor Lake processor was shown to deliver about a 28 percent improvement in the minimum frame rate, while the average FPS was about 4 percent higher.

Intel may announce Raptor Lake lineup at its Innovative event set for September 27, with retail availability expected in October.