@OneRaichu has uploaded an alleged screenshot of Intel’s flagship Core i9-13900K Raptor Lake CPU, which boasts up to 68 MB of cache. This could just validate a prior rumour from the same leaker, who said that Intel’s 13th Gen Core range would get a huge cache boost.
It was rumoured earlier this year that Intel’s Raptor Lake CPUs could have up to 55 per cent more cache than Alder Lake CPUs. While Intel’s Raptor Lake will have few architectural changes, it will have improved cache and clock rates. That appears to be the case, as evidenced by the reported CPU-z screenshot.
According to the leaker, Intel Raptor Lake CPUs will have up to 68 MB of aggregate cache (without adding L1 numbers). Intel isn’t planning to deploy any vertically stacked cache solutions right now or with Meteor Lake CPUs because we’ve already seen test chips without vertical stacking technology, but it does have a future at Intel. For the time being, Intel will simply provide more cache within the CPU dies, however, we don’t know the specifications or the exact number of L3/L2 cache per chip.
The Gracemont cores have 2048 KB of L2 and 3072 KB of L3 cache per cluster, while the Intel 12th Gen Alder Lake CPUs have 1280 KB of L2 and 3072 KB of L3 cache per core. Raptor Lake processors will have a new Raptor Cove core design, with up to 24 cores and 32 threads. For the top SKU, that’s 8 Raptor Cove and 16 Gracemont Enhanced cores for a total of 32 threads. If the existing cache counts are taken into account, the top SKU has 36 MB of L3 cache for all cores and 18 MB of L2 cache, for a total of 54 MB of Smart Cache.
Intel is expected to include 2 MB L2 / 3 MB L3 cache per Raptor Cove core in 13th Gen Raptor Lake CPUs, while each Gracemont Cluster will have 4 MB L2 and 3 MB L3 cache
This gives us a total of 36 MB L3 cache for all cores, with 16 MB (2×8) for P-cores and 16 MB (4×4) for E-cores.
- Raptor Lake P-Core L3 – 3 MB (3 x 8 = 24MB)
- Alder Lake P-Core L3 – 3 MB (3 x 8 = 24 MB)
- Raptor Lake P-Core L2 – 2 MB (2 x 8 = 16 MB)
- Alder Lake P-Core L2 – 1.25 MB (1.25 x 8 = 10 MB)
- Raptor Lake E-Core L3 – 3 MB (3 x 4 = 12 MB)
- Alder Lake E-Core L3 – 2 MB (2 x 2 = 4 MB)
- Raptor Lake E-Core L2 – 4 MB (4 x 4 = 16 MB)
- Alder Lake E-Core L2 – 2 MB (2 x 2 = 4 MB)
- Raptor Lake Total Cache (L3+L2) = 68 MB
- Alder Lake Total Cache (L3 + L2) = 42 MB
If this is correct, Intel’s 13th Generation Raptor Lake CPUs will have a 55 per cent increase in total cache count. Now, AMD will retain the advantage with its standard Non-V-Cache parts, which have 64 MB of L3 cache and 96 MB on the V-Cache SKUs, but with the added cache and core count, as well as the higher clock speed expected from a further improved 10ESF (Intel 7) process node, the blue team can recoup its lead quite significantly.
In cache-dependent circumstances, the Intel Raptor Lake CPUs could offer superior latency than Alder Lake, according to the latency data. This isn’t as large a cache as AMD’s 3D V-Cache components, which have up to 96 MB of L3 cache and more when combined with the L2, but it should help with gaming and workload performance. Raptor Lake CPUs will have clock speeds of up to 5.8 GHz, according to the leaker, making them the fastest clocked CPUs. As a result, it appears that Intel will compete against Raphael’Zen 4′ with greater cache, faster clocks, and more cores (in a hybrid fashion).
According to the leaked data, the lineup will be made up of three segments that were recently revealed in power recommendations. These include 125W enthusiast SKUs, 65W mainstream SKUs, and 35W low-power SKUs from the ‘K’ series.
- Intel Core i9 K-Series (8 Golden + 16 Grace) = 24 Cores / 32 Threads / 68 MB?
- Intel Core i7 K-Series (8 Golden + 8 Grace) = 16 Cores / 24 Threads / 54 MB?
- Intel Core i5 K-Series (6 Golden + 8 Grace) = 14 Cores / 20 Threads / 44 MB?
- Intel Core i5 S-Series (6 Golden + 4 Grace) = 14 Cores / 16 Threads / 37 MB?
- Intel Core i3 S-Series (4 Golden + 0 Grace) = 4 Cores / 8 Threads / 20 MB?
- Intel Pentium S-Series (2 Golden + 0 Grace) = 4 Cores / 4 Threads / 10 MB?
Core i9 versions with up to 8 Raptor Cove cores and 16 Gracemont cores for a total of 24 cores and 32 threads will be available in the enthusiast 125W Intel Raptor Lake-S Desktop SKUs. Intel’s Core i7 models will have 16 cores (8+8), while the Core i5 models will have 14 cores (6+8) and 10 cores (6+4), respectively. Finally, the Core i3 models will have 4 cores but no efficiency cores. There will also be Pentium SKUs with only two Raptor Cove cores in the range. A 32 EU (256 core) improved Xe integrated GPU will be included in all Core versions. Certain Core i5 and Pentium processors will also be available with 24 EU and 16 EU integrated graphics.
The Intel Raptor Lake CPU lineup will be available around the same time as AMD’s Zen 4 Rapahel family of next-generation Ryzen Desktop processors. DDR5 capability is confirmed for the new AM5 platform, and Raptor Lake may provide both DDR5 and DDR4 flavoured motherboards.
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