EPYC 7543 vs Ryzen Threadripper PRO 3975WX

AMD

EPYC 7543

32 Cores64 Thrd225 WWMax: 3.7 GHz2021
EPYC family
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VS
AMD

Ryzen Threadripper PRO 3975WX

32 Cores64 Thrd280 WWMax: 4.2 GHz2020
Threadripper Pro family
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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.

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

2021

Why 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

2020

Why 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?
It depends on what you want from the system. For gaming, Ryzen Threadripper PRO 3975WX is ahead with a 18.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 7543 pulls ahead with 1.1% better PassMark. EPYC 7543 also has the bigger cache pool with 100% larger total L3 cache (256 MB vs 128 MB).
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, EPYC 7543 is the stronger fit. You are getting 1.1% better PassMark, backed by 32 cores and 64 threads. It also has the larger cache pool with 100% larger total L3 cache (256 MB vs 128 MB).
Which one is the smarter buy today, not just the cheaper CPU?
EPYC 7543 is still the faster CPU overall, but Ryzen Threadripper PRO 3975WX is easier to justify if budget matters more than peak performance. EPYC 7543 comes in 667.2% more expensive on MSRP at $10,257 MSRP versus $1,337 MSRP, and it still gives you 1.1% better PassMark. The compromise is that Ryzen Threadripper PRO 3975WX is still the better pure gaming CPU with a 18.2% average FPS lead across 50 shared CPU game tests in our data. Ryzen Threadripper PRO 3975WX is also 658.7% better value on MSRP (46.6 vs 6.1 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.
Which one is more future-proof for 2026 and beyond?
EPYC 7543 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2020), 100% larger total L3 cache (256 MB vs 128 MB), and more multi-core headroom with 32 cores / 64 threads instead of 32/64. That extra cache should keep paying off in CPU-limited games and high-refresh builds.

EPYC 7543 vs Ryzen Threadripper PRO 3975WX Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

AMD

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.

AMD

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.

FeatureEPYC 7543Ryzen 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).

FeatureEPYC 7543Ryzen 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.

FeatureEPYC 7543Ryzen 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.

FeatureEPYC 7543Ryzen Threadripper PRO 3975WX
MSRP
$10257
$1337-87%
Performance per Dollar
6.1
46.6+664%
Release Date
2021
2020

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