AMD Ryzen Threadripper PRO 7945WX vs AMD Ryzen Threadripper PRO 9975WX

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Ryzen Threadripper PRO 7945WX compared with Ryzen Threadripper PRO 9975WX

	AMDRyzen Threadripper PRO 7945WX	AMDRyzen Threadripper PRO 9975WX
Overview
Released
Released	November 2023	July 2025
Cores and clocks
Cores
Cores	12	32 (better)
Threads
Threads	24	64 (better)
Base clock
Base clock	4.7 GHz	4 GHz
Boost clock
Boost clock	5.3 GHz	5.4 GHz (better)
L3 cache
L3 cache	64 MB	128 MB (better)
Cores
Cores	Storm Peak; Zen 4. Boxed product ID 100-100000887WOF; tray ID 100-000000887. Announced 19 October 2023. HP stated November 2023 availability for the Z6 G5 A; its original 27 November QuickSpecs lists this exact processor as a factory option. Release is kept at OEM month precision; the exact first shipping day is unverified. AMD’s 21 November DIY date covered selected PRO models and is not applied here.	Shimada Peak; Zen 5 architecture. Boxed 100-100000723WOF; tray 100-000000723. AMD’s 17 July 2025 blog names this model and says PRO 9000 systems are available starting 23 July; announcement and on-sale dates are distinct.
Clocks
Clocks	Precision Boost 2; maximum boost up to 5.3 GHz. Unlocked for overclocking; OEM system restrictions can differ.	Precision Boost 2; Precision Boost Overdrive and Curve Optimizer voltage offsets supported
Cache
Cache	L1 768 KB; L2 12 MB; L3 64 MB	L1 2560 KB; L2 32 MB
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	sTR5	sTR5
Base power
Base power	350 W	350 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	No	No
Memory support
Memory support	DDR5 RDIMM; eight channels; up to 5200 MT/s; ECC enabled by default. WRX90 supports up to 2 TB and eight channels; TRX50 with a PRO processor supports up to 1 TB and four channels.	DDR5 RDIMM; eight channels; up to 6400 MT/s. ECC enabled by default; AMD EXPO supported. WRX90 supports up to 2 TB; TRX50 reduces this to four channels and up to 1 TB.
PCIe
PCIe	PCIe 5.0; native total/usable/Gen5 lanes: 148/144/128. AMD lists 128 Gen5 lanes on WRX90, or 48 on TRX50. Four native USB 3.2 Gen 2 ports and four SATA ports.	PCIe 5.0; 148 native/platform lanes, 144 usable, including 128 PCIe 5.0 lanes with WRX90. TRX50 limits expansion to 92 total/88 usable lanes, including 80 PCIe 5.0. Four native USB 3.2 Gen 2 ports and four SATA ports; NVMe boot and RAID 0, 1, 5 and 10 supported.
Chipsets
Chipsets	WRX90 and TRX50; motherboard and OEM system configuration determines available memory channels, I/O and overclocking support	WRX90, TRX50 and AMD PRO 695; AMD PRO technologies, DASH management and AMD Memory Guard supported. Platform capabilities depend on the motherboard; AMD’s platform guide says OEM systems do not support overclocking.
Process
Process	CPU cores: TSMC 5 nm FinFET; I/O die: TSMC 6 nm FinFET. CCD 71 mm²; I/O die 388 mm²; three package dies.	CPU cores: TSMC 4 nm FinFET; I/O die: TSMC 6 nm FinFET. 5 package dies.
Cooler
Cooler	Cooler not included. Maximum operating temperature 95°C.	Cooler not included; maximum operating temperature 95°C