
EPYC 7543

Ryzen Threadripper PRO 3975WX
EPYC 7543 vs Ryzen Threadripper PRO 3975WX 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 7543 vs Ryzen Threadripper PRO 3975WX 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 7543 vs Ryzen Threadripper PRO 3975WX: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
EPYC 7543
2021Why buy it
- ✅+1.1% 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 3975WX across 50 shared CPU benchmark tests.
- ❌Lower PassMark per dollar, at 6.1 vs 46.6 PassMark/$ ($10,257 MSRP vs $1,337 MSRP).
Ryzen Threadripper PRO 3975WX
2020Why buy it
- ✅Better for gaming: +18.2% higher average FPS across 50 shared CPU benchmark tests.
- ✅Costs $8,920 less on MSRP ($1,337 MSRP vs $10,257 MSRP).
- ✅Delivers 658.7% more PassMark for each dollar spent, at 46.6 vs 6.1 PassMark/$ ($1,337 MSRP vs $10,257 MSRP).
Trade-offs
- ❌Lower PassMark (62,261 vs 62,952).
- ❌Smaller total L3 cache (128 MB vs 256 MB).
- ❌24.4% higher power demand at 280W vs 225W.
Quick Answers
So, is EPYC 7543 better than Ryzen Threadripper PRO 3975WX?
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 7543 vs Ryzen Threadripper PRO 3975WX Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

EPYC 7543
The EPYC 7543 is manufactured by AMD. It was released in 15 March 2021 (4 years ago). It is based on the Milan (2021−2023) architecture. It features 32 cores and 64 threads. Base frequency is 2.8 GHz, with boost up to 3.7 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: DDR4-3200. Passmark benchmark score: 62,952 points. Launch price was $3,761.


Ryzen Threadripper PRO 3975WX
The Ryzen Threadripper PRO 3975WX is manufactured by AMD. It was released in 2020-07-14. It is based on the Matisse (2019−2020) architecture. It features 32 cores and 64 threads. Base frequency is 3.5 GHz, with boost up to 4.2 GHz. L3 cache: 128 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: sWRX8. Thermal design power (TDP): 280 Watt. Memory support: DDR4-3200. Passmark benchmark score: 62,261 points. Launch price was $4,499.
Processing Power
Both the EPYC 7543 and Ryzen Threadripper PRO 3975WX share an identical 32-core/64-thread configuration. Boost clocks reach 3.7 GHz on the EPYC 7543 versus 4.2 GHz on the Ryzen Threadripper PRO 3975WX — a 12.7% clock advantage for the Ryzen Threadripper PRO 3975WX (base: 2.8 GHz vs 3.5 GHz). The EPYC 7543 uses the Milan (2021−2023) architecture (7 nm+), while the Ryzen Threadripper PRO 3975WX uses Matisse (2019−2020) (7 nm, 12 nm). In PassMark, the EPYC 7543 scores 62,952 against the Ryzen Threadripper PRO 3975WX's 62,261 — a 1.1% lead for the EPYC 7543. L3 cache: 256 MB (total) on the EPYC 7543 vs 128 MB on the Ryzen Threadripper PRO 3975WX.
| Feature | EPYC 7543 | Ryzen Threadripper PRO 3975WX |
|---|---|---|
| Cores / Threads | 32 / 64 | 32 / 64 |
| Boost Clock | 3.7 GHz | 4.2 GHz+14% |
| Base Clock | 2.8 GHz | 3.5 GHz+25% |
| L3 Cache | 256 MB (total)+100% | 128 MB |
| L2 Cache | 512 kB (per core) | 512K (per core) |
| Process | 7 nm+ | 7 nm, 12 nm |
| Architecture | Milan (2021−2023) | Matisse (2019−2020) |
| PassMark | 62,952+1% | 62,261 |
| Cinebench R23 Multi | — | 42,986 |
| Geekbench 6 Single | — | 1,260 |
| Geekbench 6 Multi | — | 25,211 |
Memory & Platform
The EPYC 7543 uses the SP3 socket (PCIe 4.0), while the Ryzen Threadripper PRO 3975WX uses sWRX8 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to 3200 memory speed. The EPYC 7543 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 7543) and AMD WRX80 (Ryzen Threadripper PRO 3975WX).
| Feature | EPYC 7543 | Ryzen Threadripper PRO 3975WX |
|---|---|---|
| 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 3975WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (EPYC 7543) vs true (Ryzen Threadripper PRO 3975WX). Direct competitor: EPYC 7543 rivals Xeon Platinum 8380; Ryzen Threadripper PRO 3975WX rivals Xeon W-3375.
| Feature | EPYC 7543 | Ryzen Threadripper PRO 3975WX |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | true |
Value Analysis
At launch, the EPYC 7543 was priced at $10257, while the Ryzen Threadripper PRO 3975WX came in at $1337. On launch pricing ($10257 vs $1337), Ryzen Threadripper PRO 3975WX was $8920 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7543 delivers 6.1 pts/$ vs 46.6 pts/$ for the Ryzen Threadripper PRO 3975WX — making the Ryzen Threadripper PRO 3975WX the 153.4% better value option.
| Feature | EPYC 7543 | Ryzen Threadripper PRO 3975WX |
|---|---|---|
| MSRP | $10257 | $1337-87% |
| Performance per Dollar | 6.1 | 46.6+664% |
| Release Date | 2021 | 2020 |
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