Due to an early Intel Core i9-13900K retail overview on (*(*18*)*)Bilibili,(*12*) we get an early take a look at (*(*16*)*)Raptor Lake’s(*12*) architectural improvements and function enhancements over Intel’s twelfth Gen Alder Lake structure on finalized CPU silicon. Be warned that this overview is tremendous early, launched a long way previous than the October 20 reputable release. So take all this data with a grain of salt.
The overview displays us that Intel’s design philosophy going into Raptor Lake used to be to make stronger each its frequency headroom and its multi-threaded efficiency – via doubling the E cores and making improvements to the structure’s L2 and L3 cache efficiency.
However beginning with core frequencies first, the Core i9-13900K sees an enormous clock pace growth over its predecessor, the Core i9-12900K, that includes a (*20*).8 GHz height spice up on cores (*16*) and 2, whilst cores (*18*)-8 see a height turbo spice up clock of (*20*).(*20*) GHz. Likewise, the E cores noticed a stellar growth, going from (*18*).7 GHz at the Core i9-12900K to 4.(*18*) GHz at the Core i9-13900K – in spite of core counts doubling from 8 to 16 concurrently.
In keeping with the reviewer, Intel has additionally optimized the hoop bus to assist make stronger get admission to delays between the cores. In Intel’s Alder Lake design, the hoop bus would drop 3600 MHz when the E cores had been basically energetic over the P cores. Alternatively, with the Core i9-13900K, the hoop bus now operates at greater than 4600 MHz. This small however very important alternate massively improves core-to-core conversation latency to round 30-33 ns throughout all 24 cores, except exceptions. Alder Lake’s core latency effects display kind of 30-33 ns for eight cores and 35-40ns for the remaining.
(*(*20*)*)Raptor Lake Cache Enhancements(*10*)
Total, the Core i9-13900K sees a (*20*)-11% latency growth within the L1, L2, and L3 caches in comparison to the Core i9-12900K at the P cores. By contrast, the E cores see a a lot more important 16-18% growth in benchmarks examined.
On most sensible of this, due to Raptor Lake’s larger L2 and L3 cache sizes, latency additionally improves for an extended length, as each and every take a look at can keep within the L2 or L3 cache for longer since cache sizes have greater. Raptor Lake accomplishes this spice up in latency with two strategies, the primary is because of Raptor Lake’s frequency enhancements to the cores, and 2d, the cache efficiency in large part stays the similar when taking frequency out of the equation.
It’s excellent as a result of upper cache capability most often at once affects cache latency. However with Raptor Lake, we don’t seem to be seeing this habits as appropriate for efficiency. The one exception to the latency enhancements is with the L3 cache, the place we all know somewhat of additional latency on the edges of the L3 take a look at. Alternatively, the E cores are honest, simply as excellent, or even higher the place the L3 cache is worried, they usually see a latency aid in comparison to Alder Lake.
Bandwidth has additionally advanced so much, nevertheless it is determined by the workload. As an example, learn efficiency will increase with the L1 cache via 12.(*20*)% in single-threaded checking out at the P cores. Far and wide else, then again, efficiency is similar between each architectures – together with the E cores. However, in multi-threaded workloads, cache bandwidth is massively advanced from 11% to 44%. In keeping with the reviewer, it’s because of monstrous natural L3 cache bandwidth enhancements, from upper affiliation as much as 12 approach vs. 10 approach.
(*6*)Raptor Lake Efficiency(*10*)
In Cinebench R15, R20, and R23, the Core i9-13900K won a 12.(*20*)% reasonable efficiency growth over the Core i9-12900KF with the P cores simplest within the single-threaded take a look at. Alternatively, in checking out with the E-cores, the Core i9-13900K sees a 16% single-threaded growth in efficiency over the Core i9-12900K’s E cores, however the similar 12% within the different Cinebench variations.
Multi-threaded effects confirmed much more remarkable effects, with a 48% reasonable efficiency growth for the Raptor Lake phase in all three Cinebench variations. Moreover, in all different exams the overview carried out, together with 7z decompression, compression, cryptography, 3DMark, and extra, the Core i9-13900K used to be, on reasonable, 41% sooner than the Core i9-12900KF.
The reviewer additionally examined natural IPC effects with a locked (*18*).6 GHz frequency. For the P cores, they netted a 12% IPC growth for the Core i9-13900K over the Core i9-12900KF and a 6% growth for the E cores.
Gaming exams had been additionally carried out in numerous video games, together with Ashes of the Singularity(*11*), CSGO,(*11*) and extra. Total, the Core i9-13900K netted a 10%+ growth over the Core i9-12900KF.
If this reviewer’s knowledge is correct, Raptor Lake is a vital improve over Alder Lake in nearly each and every approach. It supplies a generational jump in efficiency in maximum spaces with out transferring to a more recent Intel node. Those enhancements will also be attributed to the L2 and L3 cache density, latency, bandwidth enhancements, and the added frequency headroom. To not point out including 2x extra E cores in comparison to Alder Lake.
Alternatively, we need to rigidity that those are very, very early effects for Raptor Lake, they could possibly be correct, however we need to take them with a grain of salt for now till we see extra third birthday party critiques pop out round Raptor Lake’s release date of October 20.