AMD Ryzen Threadripper 3960X vs AMD Ryzen Threadripper 3990X

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Ryzen Threadripper 3960X compared with Ryzen Threadripper 3990X

	AMDRyzen Threadripper 3960X	AMDRyzen Threadripper 3990X
Overview
Released
Released	November 2019	February 2020
Cores and clocks
Cores
Cores	24	64 (better)
Threads
Threads	48	128 (better)
Base clock
Base clock	3.8 GHz	2.9 GHz
Boost clock
Boost clock	4.5 GHz (better)	4.3 GHz
L3 cache
L3 cache	128 MB	256 MB (better)
Cores
Cores	Castle Peak; Zen 2 architecture; boxed product ID 100-100000010WOF. Requires sTRX4/TRX40, incompatible with sTR4/X399 motherboards. AMD confirms worldwide first availability on 25 November 2019, after its 7 November announcement.	Castle Peak; Zen 2 architecture; boxed product ID 100-100000163WOF. Supports TRX40 motherboards. AMD confirms worldwide on-shelf availability on 7 February 2020, after its 6 January announcement.
Clocks
Clocks	Maximum boost up to 4.5 GHz; unlocked for overclocking	Precision Boost 2; maximum boost up to 4.3 GHz; unlocked for overclocking
Cache
Cache	L1 1536 KB; L2 12 MB; the advertised 140 MB combined cache includes L2 and L3	L1 4096 KB; L2 32 MB; the advertised 288 MB combined cache includes L2 and L3
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	A separate graphics card is required	A separate graphics card is required
Platform
Socket
Socket	sTRX4	sTRX4
Base power
Base power	280 W	280 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	No	No
Memory support
Memory support	DDR4; four channels; up to 3200 MT/s	DDR4 UDIMM; four channels; maximum 256 GB. Up to 3200 MT/s with four single-rank or dual-rank DIMMs, or 2933 MT/s with eight single-rank DIMMs. ECC requires motherboard support.
PCIe
PCIe	PCIe 4.0; AMD publishes 88 lanes across the processor and TRX40 chipset, with 72 usable	PCIe 4.0; 64 native lanes, 56 usable, plus 16 usable lanes from TRX40. AMD's launch table lists 88 combined processor/chipset lanes, 72 usable.
Process
Process	CPU cores: TSMC 7 nm FinFET	CPU cores: TSMC 7 nm FinFET; I/O die: Globalfoundries 12 nm
Cooler
Cooler	No cooler included; maximum operating temperature 95°C	Cooler not included; AMD recommends liquid cooling. Maximum operating temperature 95°C.