AMD Ryzen 7 5800X vs Intel Core 2 Duo E8400

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Ryzen 7 5800X compared with Core 2 Duo E8400

	AMDRyzen 7 5800X	IntelCore 2 Duo E8400
Overview
Released
Released	November 2020	January 2008
Cores and clocks
Cores
Cores	8 (better)	2
Threads
Threads	16 (better)	2
Base clock
Base clock	3.8 GHz	3 GHz
Boost clock
Boost clock	4.7 GHz	–
L3 cache
L3 cache	32 MB	–
Cores
Cores	Zen 3; Vermeer; simultaneous multithreading	Wolfdale; two cores and two threads, without Hyper-Threading. Intel’s archived exact E8400 specifications are attached to the maker datasheet distributed by Mouser.
Clocks
Clocks	Unlocked for overclocking	Published operating frequency 3.00 GHz; 1333 MHz front-side bus. Intel explicitly lists no Turbo Boost, so no boost figure is supplied. Intel’s CES fact sheet specifies January 2008 availability for this exact model; TechSpot’s 1 February review confirms retail stock, with early shortages and prices above target. An exact first-sale day remains unverified.
Cache
Cache	L2 4 MB; L3 32 MB	6 MB shared L2 cache; no L3 figure supplied.
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	No integrated graphics; a separate graphics card is required	No integrated graphics, explicitly confirmed by the exact BX80570E8400 Newegg listing; motherboard graphics are separate.
Platform
Socket
Socket	AM4	LGA775
Base power
Base power	105 W	65 W
Unlocked
Unlocked	Yes	–
Cooler in the box
Cooler in the box	No	Yes
Memory support
Memory support	DDR4; up to 3200 MT/s	Memory and I/O transactions pass through the front-side bus and chipset, as Intel’s datasheet states; supported memory types and capacity depend on the motherboard.
PCIe
PCIe	PCIe 4.0	–
Process
Process	TSMC 7nm FinFET CPU cores	45 nm; Wolfdale; LGA775; SSE4.1 support.
Cooler
Cooler	Not included; Tjmax 90°C; AMD recommends a premium air cooler for optimal performance	Intel’s boxed-processor specification confirms a supplied cooling solution; exact BX80570E8400 listing confirms heatsink and fan. Published processor TDP is 65 W.