EPYC 7443
Ryzen Threadripper PRO 9945WX
EPYC 7443 vs Ryzen Threadripper PRO 9945WX 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 7443 vs Ryzen Threadripper PRO 9945WX 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 7443 vs Ryzen Threadripper PRO 9945WX: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
EPYC 7443
2021Why buy it
- ✅+100% larger total L3 cache (128 MB vs 64 MB).
- ✅Draws 200W instead of 350W, a 150W reduction.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 9945WX across 50 shared CPU benchmark tests.
- ❌Lower PassMark (56,743 vs 56,854).
- ❌Lower PassMark per dollar, at 28.2 vs 42.4 PassMark/$ ($2,010 MSRP vs $1,340 MSRP).
- ❌Older platform position on SP3 with DDR4, while Ryzen Threadripper PRO 9945WX moves to sTR5 and DDR5.
Ryzen Threadripper PRO 9945WX
2025Why buy it
- ✅Better for gaming: +27.1% higher average FPS across 50 shared CPU benchmark tests.
- ✅Costs $670 less on MSRP ($1,340 MSRP vs $2,010 MSRP).
- ✅Delivers 50.3% more PassMark for each dollar spent, at 42.4 vs 28.2 PassMark/$ ($1,340 MSRP vs $2,010 MSRP).
- ✅Newer platform on sTR5 with DDR5 support instead of SP3 and DDR4.
Trade-offs
- ❌Smaller total L3 cache (64 MB vs 128 MB).
- ❌75% higher power demand at 350W vs 200W.
Quick Answers
So, is Ryzen Threadripper PRO 9945WX better than EPYC 7443?
Which one is better for gaming?
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 7443 vs Ryzen Threadripper PRO 9945WX Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
EPYC 7443
The EPYC 7443 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 24 cores and 48 threads. Base frequency is 2.85 GHz, with boost up to 4 GHz. L3 cache: 128 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 200 Watt. Memory support: DDR4-3200. Passmark benchmark score: 56,743 points. Launch price was $2,010.
Ryzen Threadripper PRO 9945WX
The Ryzen Threadripper PRO 9945WX is manufactured by AMD. It was released in 2025-01-01. It is based on the Shimada Peak (2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.7 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: sTR5. Thermal design power (TDP): 350 Watt. Memory support: DDR5. Passmark benchmark score: 56,854 points. Launch price was $2,000.
Processing Power
The EPYC 7443 packs 24 cores / 48 threads, while the Ryzen Threadripper PRO 9945WX offers 12 cores / 24 threads — the EPYC 7443 has 12 more cores. Boost clocks reach 4 GHz on the EPYC 7443 versus 5.4 GHz on the Ryzen Threadripper PRO 9945WX — a 29.8% clock advantage for the Ryzen Threadripper PRO 9945WX (base: 2.85 GHz vs 4.7 GHz). The EPYC 7443 uses the Milan (2021−2023) architecture (7 nm+), while the Ryzen Threadripper PRO 9945WX uses Shimada Peak (2025) (4 nm). In PassMark, the EPYC 7443 scores 56,743 against the Ryzen Threadripper PRO 9945WX's 56,854 — a 0.2% lead for the Ryzen Threadripper PRO 9945WX. L3 cache: 128 MB (total) on the EPYC 7443 vs 64 MB (total) on the Ryzen Threadripper PRO 9945WX.
| Feature | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Cores / Threads | 24 / 48+100% | 12 / 24 |
| Boost Clock | 4 GHz | 5.4 GHz+35% |
| Base Clock | 2.85 GHz | 4.7 GHz+65% |
| L3 Cache | 128 MB (total)+100% | 64 MB (total) |
| L2 Cache | 512 kB (per core) | 1 MB (per core)+100% |
| Process | 7 nm+ | 4 nm-43% |
| Architecture | Milan (2021−2023) | Shimada Peak (2025) |
| PassMark | 56,743 | 56,854 |
Memory & Platform
The EPYC 7443 uses the SP3 socket (PCIe 4.0), while the Ryzen Threadripper PRO 9945WX uses sTR5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7443 versus 6400 on the Ryzen Threadripper PRO 9945WX — the Ryzen Threadripper PRO 9945WX supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7443 supports up to 4096 of RAM compared to 2048 — 100% more capacity for professional workloads. Both feature 8-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: SP3 (EPYC 7443) and WRX90,TRX50 (Ryzen Threadripper PRO 9945WX).
| Feature | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Socket | SP3 | sTR5 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 3200 | 6400+100% |
| Max RAM Capacity | 4096+100% | 2048 |
| RAM Channels | 8 | 8 |
| ECC Support | Yes | Yes |
| PCIe Lanes | 128 | 128 |
Advanced Features
Only the Ryzen Threadripper PRO 9945WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen Threadripper PRO 9945WX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (EPYC 7443) vs VT-x, VT-d, AMD-V (Ryzen Threadripper PRO 9945WX). Direct competitor: EPYC 7443 rivals Xeon Platinum 8362; Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545.
| Feature | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | Yes |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d, AMD-V |
Value Analysis
At launch, the EPYC 7443 was priced at $2010, while the Ryzen Threadripper PRO 9945WX came in at $1340. On launch pricing ($2010 vs $1340), Ryzen Threadripper PRO 9945WX was $670 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7443 delivers 28.2 pts/$ vs 42.4 pts/$ for the Ryzen Threadripper PRO 9945WX — making the Ryzen Threadripper PRO 9945WX the 40.2% better value option.
| Feature | EPYC 7443 | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| MSRP | $2010 | $1340-33% |
| Performance per Dollar | 28.2 | 42.4+50% |
| Release Date | 2021 | 2025 |
Affiliate Disclosure
ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.
Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on EPYC 7443 and Ryzen Threadripper PRO 9945WX
