Ryzen Threadripper PRO 3955WX
Xeon 6505P
Ryzen Threadripper PRO 3955WX vs Xeon 6505P 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.
Ryzen Threadripper PRO 3955WX vs Xeon 6505P 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
Ryzen Threadripper PRO 3955WX vs Xeon 6505P: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Ryzen Threadripper PRO 3955WX
2020Why buy it
- ✅Better for gaming: +16.7% higher average FPS across 50 shared CPU benchmark tests.
- ✅+33.3% larger total L3 cache (64 MB vs 48 MB).
- ✅45.5% more PCIe lanes (128 vs 88) for storage and expansion-heavy builds.
Trade-offs
- ❌Lower PassMark per dollar, at 34.8 vs 69.9 PassMark/$ ($1,149 MSRP vs $563 MSRP).
- ❌86.7% higher power demand at 280W vs 150W.
- ❌Older platform position on sWRX8 with DDR4, while Xeon 6505P moves to LGA4710 and DDR5.
Xeon 6505P
2025Why buy it
- ✅Costs $586 less on MSRP ($563 MSRP vs $1,149 MSRP).
- ✅Delivers 101.1% more PassMark for each dollar spent, at 69.9 vs 34.8 PassMark/$ ($563 MSRP vs $1,149 MSRP).
- ✅Draws 150W instead of 280W, a 130W reduction.
- ✅Newer platform on LGA4710 with DDR5 support instead of sWRX8 and DDR4.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 3955WX across 50 shared CPU benchmark tests.
- ❌Lower PassMark (39,341 vs 39,929).
- ❌Smaller total L3 cache (48 MB vs 64 MB).
Quick Answers
So, is Ryzen Threadripper PRO 3955WX better than Xeon 6505P?
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?
Ryzen Threadripper PRO 3955WX vs Xeon 6505P Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Ryzen Threadripper PRO 3955WX
The Ryzen Threadripper PRO 3955WX is manufactured by AMD. It was released in 14 July 2020 (5 years ago). It is based on the Castle Peak (2020) architecture. It features 16 cores and 32 threads. Base frequency is 3.9 GHz, with boost up to 4.3 GHz. L3 cache: 64 MB. L2 cache: 512 kB (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: 39,929 points. Launch price was $1,149.
Xeon 6505P
The Xeon 6505P is manufactured by Intel. It was released in 24 February 2025 (less than a year ago). It is based on the Granite Rapids (2024−2025) architecture. It features 12 cores and 24 threads. Base frequency is 2.2 GHz, with boost up to 4.1 GHz. L3 cache: 48 MB (total). L2 cache: 2 MB (per core). Built on Intel 3 nm process technology. Socket: LGA4710. Thermal design power (TDP): 150 Watt. Memory support: DDR5(6400MT/s). Passmark benchmark score: 39,341 points. Launch price was $563.
Processing Power
The Ryzen Threadripper PRO 3955WX packs 16 cores / 32 threads, while the Xeon 6505P offers 12 cores / 24 threads — the Ryzen Threadripper PRO 3955WX has 4 more cores. Boost clocks reach 4.3 GHz on the Ryzen Threadripper PRO 3955WX versus 4.1 GHz on the Xeon 6505P — a 4.8% clock advantage for the Ryzen Threadripper PRO 3955WX (base: 3.9 GHz vs 2.2 GHz). The Ryzen Threadripper PRO 3955WX uses the Castle Peak (2020) architecture (7 nm, 12 nm), while the Xeon 6505P uses Granite Rapids (2024−2025) (Intel 3 nm). In PassMark, the Ryzen Threadripper PRO 3955WX scores 39,929 against the Xeon 6505P's 39,341 — a 1.5% lead for the Ryzen Threadripper PRO 3955WX. L3 cache: 64 MB on the Ryzen Threadripper PRO 3955WX vs 48 MB (total) on the Xeon 6505P.
| Feature | Ryzen Threadripper PRO 3955WX | Xeon 6505P |
|---|---|---|
| Cores / Threads | 16 / 32+33% | 12 / 24 |
| Boost Clock | 4.3 GHz+5% | 4.1 GHz |
| Base Clock | 3.9 GHz+77% | 2.2 GHz |
| L3 Cache | 64 MB+33% | 48 MB (total) |
| L2 Cache | 512 kB (per core) | 2 MB (per core)+300% |
| Process | 7 nm, 12 nm | Intel 3 nm-57% |
| Architecture | Castle Peak (2020) | Granite Rapids (2024−2025) |
| PassMark | 39,929+1% | 39,341 |
Memory & Platform
The Ryzen Threadripper PRO 3955WX uses the sWRX8 socket (PCIe 4.0), while the Xeon 6505P uses LGA4710 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the Ryzen Threadripper PRO 3955WX versus 6400 on the Xeon 6505P — the Xeon 6505P supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon 6505P supports up to 4096 of RAM compared to 2048 — 100% more capacity for professional workloads. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (Ryzen Threadripper PRO 3955WX) vs 88 (Xeon 6505P) — the Ryzen Threadripper PRO 3955WX offers 40 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WRX80 (Ryzen Threadripper PRO 3955WX) and LGA4710 (Xeon 6505P).
| Feature | Ryzen Threadripper PRO 3955WX | Xeon 6505P |
|---|---|---|
| Socket | sWRX8 | LGA4710 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 3200 | 6400+100% |
| Max RAM Capacity | 2048 | 4096+100% |
| RAM Channels | 8 | 8 |
| ECC Support | Yes | Yes |
| PCIe Lanes | 128+45% | 88 |
Advanced Features
Only the Ryzen Threadripper PRO 3955WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, AMD-V (Ryzen Threadripper PRO 3955WX) vs VT-x, VT-d (Xeon 6505P). Direct competitor: Ryzen Threadripper PRO 3955WX rivals Xeon Silver 4314; Xeon 6505P rivals EPYC 9334.
| Feature | Ryzen Threadripper PRO 3955WX | Xeon 6505P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d, AMD-V | VT-x, VT-d |
Value Analysis
At launch, the Ryzen Threadripper PRO 3955WX was priced at $1149, while the Xeon 6505P came in at $563. On launch pricing ($1149 vs $563), Xeon 6505P was $586 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen Threadripper PRO 3955WX delivers 34.8 pts/$ vs 69.9 pts/$ for the Xeon 6505P — making the Xeon 6505P the 67.1% better value option.
| Feature | Ryzen Threadripper PRO 3955WX | Xeon 6505P |
|---|---|---|
| MSRP | $1149 | $563-51% |
| Performance per Dollar | 34.8 | 69.9+101% |
| Release Date | 2020 | 2025 |
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