AMD Ryzen Threadripper 7980X vs AMD Ryzen Threadripper PRO 3975WX
Buy the Threadripper 7980X for a new high-end workstation build: it has twice the cores, Zen 4 IPC, PCIe 5.0 and DDR5, and it fits current sTR5 boards. Buy the PRO 3975WX only if you already own a working sWRX8 platform or find it far cheaper used, since it is a previous-generation part on DDR4 and PCIe 4.0. No prices were given for either chip, so compare live store prices before deciding.
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Choose the Ryzen Threadripper 7980X if you are building a new machine for rendering, simulation or code compilation and want the fastest per-core and multi-core performance available.
- 64 Zen 4 cores handle heavy render and compile jobs far faster
- PCIe 5.0 and DDR5-5200 give headroom for new GPUs and storage
- Up to 256GB ECC DDR5 on current sTR5 boards
- 5.1 GHz boost keeps lightly threaded work snappy
What separates them
| AMD Ryzen Threadripper 7980X | AMD Ryzen Threadripper PRO 3975WX | |
|---|---|---|
| Cores and threads | 64 cores, 128 threads | 32 cores, 64 threads |
| Architecture | Zen 4 | Zen 3 (7 nm) |
| Socket and platform | sTR5, current consumer Threadripper boards | sWRX8, older PRO workstation boards |
| Memory | DDR5-5200, quad channel, up to 256GB, ECC | DDR4-3200, 8 channel, registered ECC |
| PCIe | PCIe 5.0 | PCIe 4.0 |
| Clocks | 3.2 GHz base, 5.1 GHz boost | 3.5 GHz base, 4.2 GHz boost |
| TDP | 350 W | 280 W |
| Overclocking |
Price history
- AMD Ryzen Threadripper 7980X: lowest $2,999.92 on Nov 3 at eBay.
- AMD Ryzen Threadripper PRO 3975WX: lowest $547.95 on Nov 3 at Amazon.
Prices at every store
AMD Ryzen Threadripper 7980X
- AmazonCheck price at Amazon
- Best BuyCheck price at Best Buy
- B&H Photo-Video-AudioCheck price at B&H Photo-Video-Audio
AMD Ryzen Threadripper PRO 3975WX
- WalmartCheck price at Walmart
- AmazonCheck price at Amazon
- anafrashop.comCheck price at anafrashop.com
Specs compared
| Spec | AMD Ryzen Threadripper 7980X | AMD Ryzen Threadripper PRO 3975WX |
|---|---|---|
| Socket Type | sTR5 | Socket sWRX8 |
| Integrated Graphics | No | No |
| Manufacturer | AMD | AMD |
| Clock Speed | 3.2 GHz | 3.5 GHz |
| Number Of Cores | 64 | 32-core |
| Boost Clock Speed | 5.1 GHz | 4.2 GHz |
| Number Of Threads | 128 | 64 threads |
| Thermal Design Power (TDP) | 350 W | 280 W |
| Supports Overclocking | Yes | Yes |
| RAM Type | DDR5 | DDR4 |
What reviewers say
AMD Ryzen Threadripper PRO 3975WX
Owners of the 3975WX generally describe it as a rendering and simulation workhorse, with the memory bandwidth and PCIe lane count doing as much work as the core count. Complaints center on heat, power draw and the price of the WRX80 platform rather than on the chip's throughput.
- Multi-core performancePraisedOwners report large gains in rendering, encoding and simulation versus consumer chips.
- Memory bandwidthPraisedThe 8-channel DDR4 with ECC is cited as a real advantage for large datasets.
- Heat and powerCriticisedThe 280W TDP means big coolers and strong power supplies are mandatory.
Questions and answers
- Which is faster for 3D rendering?
- The 7980X. It has twice the cores on a newer architecture, so it wins multi-threaded render jobs by a wide margin.
- Is the 3975WX worth it for memory bandwidth?
- It offers 8-channel registered DDR4, which is strong for memory-bound simulation. The 7980X counters with faster DDR5-5200 on four channels, so check benchmarks for your specific workload.
- Can I use the same motherboard for both?
- No. The 7980X needs an sTR5 board and the 3975WX needs sWRX8. The platform choice often decides the purchase.
- Which runs cooler?
- The 3975WX has a lower 280 W TDP versus 350 W, so it is easier to cool, though both need large workstation coolers.
- Do either have integrated graphics?
- Neither does. You need a discrete GPU with both chips.
- Which lasts longer as a platform?
- The 7980X. PCIe 5.0, DDR5 and the current socket give it a longer useful life than the older sWRX8 platform.
More comparisons
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- AMD Ryzen Threadripper PRO 3975WX Processor vs AMD Ryzen Threadripper Pro 7975Wx
