
EPYC 7643P

Ryzen Threadripper PRO 5975WX
EPYC 7643P vs Ryzen Threadripper PRO 5975WX Performance Spectrum
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
EPYC 7643P vs Ryzen Threadripper PRO 5975WX FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
EPYC 7643P vs Ryzen Threadripper PRO 5975WX: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
EPYC 7643P
2023Why buy it
- ✅+3.1% higher PassMark.
- ✅+100% larger total L3 cache (256 MB vs 128 MB).
- ✅Draws 225W instead of 280W, a 55W reduction.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 5975WX across 50 shared CPU benchmark tests.
- ❌9.1% HIGHER MSRP$2,722 MSRPvs$2,495 MSRP
Ryzen Threadripper PRO 5975WX
2022Why buy it
- ✅Better for gaming: +43.0% higher average FPS across 50 shared CPU benchmark tests.
- ✅Costs $227 less on MSRP ($2,495 MSRP vs $2,722 MSRP).
Trade-offs
- ❌Lower PassMark (74,985 vs 77,307).
- ❌Smaller total L3 cache (128 MB vs 256 MB).
- ❌24.4% higher power demand at 280W vs 225W.
Quick Answers
So, is EPYC 7643P better than Ryzen Threadripper PRO 5975WX?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
EPYC 7643P vs Ryzen Threadripper PRO 5975WX Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

EPYC 7643P
The EPYC 7643P is manufactured by AMD. It was released in 5 September 2023 (2 years ago). It is based on the Milan (2021−2023) architecture. It features 48 cores and 96 threads. Base frequency is 2.3 GHz, with boost up to 3.6 GHz. L3 cache: 256 MB (total). L2 cache: 512 kB (per core). Built on 7 nm process technology. Socket: SP3. Thermal design power (TDP): 225 Watt. Memory support: DDR4. Passmark benchmark score: 77,307 points. Launch price was $2,722.


Ryzen Threadripper PRO 5975WX
The Ryzen Threadripper PRO 5975WX is manufactured by AMD. It was released in 2022-03-08. It is based on the Chagall PRO (2022) architecture. It features 32 cores and 64 threads. Base frequency is 3.6 GHz, with boost up to 4.5 GHz. L3 cache: 128 MB. L2 cache: 512K (per core). Built on 7 nm process technology. Socket: sWRX8. Thermal design power (TDP): 280 Watt. Memory support: DDR4-3200. Passmark benchmark score: 74,985 points. Launch price was $3,299.
Processing Power
The EPYC 7643P packs 48 cores / 96 threads, while the Ryzen Threadripper PRO 5975WX offers 32 cores / 64 threads — the EPYC 7643P has 16 more cores. Boost clocks reach 3.6 GHz on the EPYC 7643P versus 4.5 GHz on the Ryzen Threadripper PRO 5975WX — a 22.2% clock advantage for the Ryzen Threadripper PRO 5975WX (base: 2.3 GHz vs 3.6 GHz). The EPYC 7643P uses the Milan (2021−2023) architecture (7 nm), while the Ryzen Threadripper PRO 5975WX uses Chagall PRO (2022) (7 nm). In PassMark, the EPYC 7643P scores 77,307 against the Ryzen Threadripper PRO 5975WX's 74,985 — a 3% lead for the EPYC 7643P. L3 cache: 256 MB (total) on the EPYC 7643P vs 128 MB on the Ryzen Threadripper PRO 5975WX.
| Feature | EPYC 7643P | Ryzen Threadripper PRO 5975WX |
|---|---|---|
| Cores / Threads | 48 / 96+50% | 32 / 64 |
| Boost Clock | 3.6 GHz | 4.5 GHz+25% |
| Base Clock | 2.3 GHz | 3.6 GHz+57% |
| L3 Cache | 256 MB (total)+100% | 128 MB |
| L2 Cache | 512 kB (per core) | 512K (per core) |
| Process | 7 nm | 7 nm |
| Architecture | Milan (2021−2023) | Chagall PRO (2022) |
| PassMark | 77,307+3% | 74,985 |
| Cinebench R23 Multi | — | 53,977 |
| Geekbench 6 Single | — | 1,686 |
| Geekbench 6 Multi | — | 29,745 |
Memory & Platform
The EPYC 7643P uses the SP3 socket (PCIe 4.0), while the Ryzen Threadripper PRO 5975WX uses sWRX8 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to 3200 memory speed. The EPYC 7643P supports up to 4096 GB of RAM compared to 2048 GB — 100% more capacity for professional workloads. Both feature 8-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: SP3 (EPYC 7643P) and WRX80 (Ryzen Threadripper PRO 5975WX).
| Feature | EPYC 7643P | Ryzen Threadripper PRO 5975WX |
|---|---|---|
| Socket | SP3 | sWRX8 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 3200 | DDR4-3200 |
| Max RAM Capacity | 4096 GB+100% | 2048 GB |
| RAM Channels | 8 | 8 |
| ECC Support | Yes | Yes |
| PCIe Lanes | 128 | 128 |
Advanced Features
Only the Ryzen Threadripper PRO 5975WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d, SEV (EPYC 7643P) vs true (Ryzen Threadripper PRO 5975WX). Direct competitor: EPYC 7643P rivals Xeon Platinum 8380; Ryzen Threadripper PRO 5975WX rivals Xeon Gold 6338.
| Feature | EPYC 7643P | Ryzen Threadripper PRO 5975WX |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d, SEV | true |
Value Analysis
At launch, the EPYC 7643P was priced at $2722, while the Ryzen Threadripper PRO 5975WX came in at $2495. On launch pricing ($2722 vs $2495), Ryzen Threadripper PRO 5975WX was $227 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7643P delivers 28.4 pts/$ vs 30.1 pts/$ for the Ryzen Threadripper PRO 5975WX — making the Ryzen Threadripper PRO 5975WX the 5.7% better value option.
| Feature | EPYC 7643P | Ryzen Threadripper PRO 5975WX |
|---|---|---|
| MSRP | $2722 | $2495-8% |
| Performance per Dollar | 28.4 | 30.1+6% |
| Release Date | 2023 | 2022 |
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