Intel Core i7-7820X vs Intel Core i9-13900KS

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Core i7-7820X compared with Core i9-13900KS
IntelCore i7-7820XIntelCore i9-13900KS
Overview
ReleasedJune 2017January 2023
Cores and clocks
Cores824 (8 performance, 16 efficiency) (better)
Threads1632 (better)
Base clock3.6 GHz3.2 GHz
Boost clock4.5 GHz6 GHz (better)
L3 cache11 MB36 MB (better)
CoresSkylake-X; 8 cores with Hyper-Threading. The unlocked multiplier is confirmed by Intel’s exact-model family product brief.Raptor Lake; 8 Performance-cores with Hyper-Threading and 16 Efficient-cores
ClocksTurbo Boost Max 3.0 up to 4.50 GHz on the preferred core; ordinary Turbo Boost 2.0 up to 4.30 GHz. The main boost field uses Intel’s highest published frequency. Intel’s September press-kit record names 26 June 2017 availability for the first Core X processors; its August record confirms the four- to ten-core models were already on shelves. The exact model’s first-sale day was not established, so month precision is retained.P-core base 3.2 GHz and turbo 5.4 GHz; E-core base 2.4 GHz and turbo 4.3 GHz; Turbo Boost Max 3.0 5.8 GHz; Thermal Velocity Boost up to 6 GHz
Cache11 MB Intel Smart Cache (L3).32 MB L2 cache
Graphics and AI
Built-in graphicsNoYes
GraphicsNo processor graphics, explicitly stated in Intel’s exact-model comparison-chart row; a separate graphics solution is required.Intel UHD Graphics 770; 32 execution units; 300 MHz base and 1.65 GHz maximum dynamic clock
Platform
SocketLGA2066LGA1700
Base power140 W150 W
Maximum power–253 W
UnlockedYesYes
Cooler in the boxNo–
Memory supportUp to 128 GB; four channels of DDR4-2666; 85 GB/s maximum published bandwidth; no ECC.Up to 192 GB; two channels; DDR5-5600 or DDR4-3200; ECC support depends on the motherboard and configuration
PCIe28 CPU lanes; PCIe 3.0.20 CPU lanes; PCIe 5.0 and 4.0
ChipsetsIntel X299; LGA2066.Intel recommends Z790 or Z690 with the latest BIOS
Process14 nm; Skylake-X.Intel 7
CoolerIntel explicitly excludes a fan and heatsink from the boxed product; a separate compatible cooler is required. Published junction limit: 99°C.Maximum operating temperature 100 °C; maker maximum turbo power 253 W. The 320 W Extreme profiles used in launch reviews are separate operating configurations.

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