Which is better for 3D rendering?

The 7975WX. Its 32 cores and 64 threads finish multi-threaded renders faster than the 7965WX's 24 cores and 48 threads, and both boost to 5.3 GHz.

Is the 7975WX worth the extra over the 7965WX?

Only if your software uses more than 24 threads or you need over 1TB of RAM. Otherwise the 7965WX's higher base clock covers everyday work at a lower cost.

Do they use the same motherboard?

Yes. Both are sTR5 parts with 350W TDP and PCIe 5.0, so they fit the same WRX90 and TRX50 boards and need the same cooling.

Which supports more memory?

The 7975WX supports up to 2TB of DDR5 ECC across 8 channels; the 7965WX is capped at 1TB. Both run up to 5200 MT/s.

Which is better for gaming?

Neither is a gaming chip. The 7965WX's 4.2 GHz base clock gives it a slight edge in lightly threaded titles, but a mainstream desktop CPU costs far less for gaming.

Do either include a cooler?

No. Both are 350W parts sold without a thermal solution, so budget for a Threadripper-class air or liquid cooler.

AMD Ryzen Threadripper Pro 7975WX vs AMD Ryzen Threadripper PRO 7965WX

Buy the 7975WX if you need maximum multi-core throughput and room for up to 2TB of memory; buy the 7965WX if 24 cores is enough and you want a slightly higher base clock. The 7975WX has been listed as low as $1,899.99 (2026-11-03) and as high as $3,592.99 (2026-11-06), so its price swings widely; no current price was given for the 7965WX. Both use the sTR5 socket and 350W TDP, so the platform cost is the same.

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