AMD Ryzen 9 3900X vs Intel Core i7-6950X

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

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Ryzen 9 3900X compared with Core i7-6950X
AMDRyzen 9 3900XIntelCore i7-6950X
Overview
ReleasedJuly 2019May 2016
Cores and clocks
Cores12 (better)10
Threads24 (better)20
Base clock3.8 GHz3 GHz
Boost clock4.6 GHz (better)4 GHz
L3 cache64 MB (better)25 MB
CoresZen 2; Matisse; twelve cores with simultaneous multithreading. Two CPU chiplets with six active cores each and a separate I/O die (PCGamesN).Broadwell-E; 10 cores with Hyper-Threading. The unlocked multiplier is confirmed by the exact-model reviews.
ClocksUnlocked for overclocking; Precision Boost Overdrive with Automatic Overclocking supported, as described in AMD's launch notice.Turbo Boost Max 3.0 up to 4.00 GHz on the preferred core; ordinary Turbo Boost 2.0 up to 3.50 GHz. The main boost field uses Intel’s highest published frequency. May availability follows Tom’s Hardware’s 31 May 2016 report, attributing immediate sale of all four models to Intel. Intel’s family record is dated 30 May and ARK gives Q2 2016; the announcement day is not treated as an exact first-sale day.
Cache768 KB L1; 6 MB L2; 64 MB L3.–
Graphics and AI
Built-in graphicsNoNo
GraphicsNo integrated graphics; a separate graphics card is required.No processor graphics, confirmed by Intel’s exact-model comparison-chart row; a separate graphics solution is required.
Platform
SocketAM4LGA2011-v3
Base power105 W140 W
UnlockedYesYes
Cooler in the boxYesNo
Memory supportDDR4; two channels; up to 3200 MT/s.Up to 128 GB; four channels of DDR4-2133/2400; no ECC.
PCIePCIe 4.0 x16; AMD introduced PCIe 4.0 support with the X570 platform at launch.40 CPU lanes; PCIe 3.0
ChipsetsX570 at launch; check the motherboard's CPU support list and BIOS for other AM4 boards.X99 and LGA2011-v3, distinguished by Intel’s exact-model comparison chart and the reviews. Current ARK abbreviates the socket as FCLGA2011; this is not compatible with the older X79 LGA2011 platform.
ProcessTSMC 7nm FinFET CPU cores; 14nm I/O die (PCGamesN).14 nm; Broadwell-E.
CoolerRetail boxed processor includes an RGB cooler (PCGamesN; inclusion also confirmed by TechRadar); AMD's current support specification does not name a cooler. Maximum operating temperature 95°C.Intel explicitly excludes a fan and heatsink from the boxed product; a separate compatible cooler is required.

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