Ryzen Threadripper PRO 3955WX vs Xeon 6505P

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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Ryzen Threadripper PRO 3955WX

2020

Why buy it

✅+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

2025

Why 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

❌Lower PassMark (39,341 vs 39,929).
❌Smaller total L3 cache (48 MB vs 64 MB).

Ryzen Threadripper PRO 3955WX

2020

Xeon 6505P

2025

Why buy it

✅+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.

Why 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

❌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.

Trade-offs

❌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?

Yes. Ryzen Threadripper PRO 3955WX is the better overall CPU here. You are getting a 1.9% average FPS lead across 4 shared CPU game tests in our data and 1.5% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen Threadripper PRO 3955WX is the better pick here. According to our tests, it delivers 1.9% more average FPS across 4 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Ryzen Threadripper PRO 3955WX is the better fit. You are getting 1.5% better PassMark, backed by 16 cores and 32 threads. It also carries the larger cache pool with 33.3% larger total L3 cache (64 MB vs 48 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Ryzen Threadripper PRO 3955WX is still the faster CPU overall, but Xeon 6505P makes more sense if price matters more than absolute performance. Ryzen Threadripper PRO 3955WX is 104.1% more expensive on MSRP at $1,149 MSRP versus $563 MSRP, and it gives you a 1.9% average FPS lead across 4 shared CPU game tests in our data. Xeon 6505P is also 101.1% better value on MSRP (69.9 vs 34.8 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

Which one is more future-proof for 2026 and beyond?

Xeon 6505P is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2020) and a healthier platform with LGA4710 and DDR5 instead of sWRX8. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Ryzen Threadripper PRO 3955WX Benchmark Check

Xeon 6505P Benchmark Check

Path of Exile 2

Preset	Ryzen Threadripper PRO 3955WX	Xeon 6505P
1080p
low	210 FPS	183 FPS
medium	170 FPS	147 FPS
high	142 FPS	119 FPS
ultra	104 FPS	95 FPS
1440p
low	186 FPS	153 FPS
medium	147 FPS	120 FPS
high	118 FPS	93 FPS
ultra	88 FPS	75 FPS
4K
low	88 FPS	70 FPS
medium	74 FPS	59 FPS
high	58 FPS	46 FPS
ultra	47 FPS	38 FPS

Open Ryzen Threadripper PRO 3955WX Open Xeon 6505P

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen Threadripper PRO 3955WX	Xeon 6505P
1080p
low	557 FPS	292 FPS
medium	486 FPS	261 FPS
high	395 FPS	216 FPS
ultra	351 FPS	192 FPS
1440p
low	479 FPS	252 FPS
medium	424 FPS	227 FPS
high	356 FPS	194 FPS
ultra	296 FPS	161 FPS
4K
low	299 FPS	158 FPS
medium	268 FPS	144 FPS
high	243 FPS	134 FPS
ultra	217 FPS	120 FPS

Open Ryzen Threadripper PRO 3955WX Open Xeon 6505P

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen Threadripper PRO 3955WX	Xeon 6505P
1080p
low	773 FPS	984 FPS
medium	638 FPS	947 FPS
high	569 FPS	875 FPS
ultra	494 FPS	792 FPS
1440p
low	600 FPS	810 FPS
medium	495 FPS	719 FPS
high	437 FPS	663 FPS
ultra	376 FPS	595 FPS
4K
low	431 FPS	511 FPS
medium	344 FPS	421 FPS
high	303 FPS	371 FPS
ultra	243 FPS	304 FPS

Open Ryzen Threadripper PRO 3955WX Open Xeon 6505P

League of Legends

League of Legends

Valorant

Preset	Ryzen Threadripper PRO 3955WX	Xeon 6505P
1080p
low	998 FPS	927 FPS
medium	970 FPS	838 FPS
high	823 FPS	722 FPS
ultra	725 FPS	626 FPS
1440p
low	847 FPS	718 FPS
medium	745 FPS	632 FPS
high	630 FPS	541 FPS
ultra	540 FPS	469 FPS
4K
low	594 FPS	523 FPS
medium	540 FPS	467 FPS
high	468 FPS	410 FPS
ultra	405 FPS	353 FPS

Open Ryzen Threadripper PRO 3955WX Open Xeon 6505P

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen Threadripper PRO 3955WX and Xeon 6505P

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.

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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

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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 66.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon 6505P supports up to 4096 of RAM compared to 2048 — 66.7% 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

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Value Analysis

The Ryzen Threadripper PRO 3955WX launched at $1149 MSRP, while the Xeon 6505P debuted at $563. On MSRP ($1149 vs $563), the Xeon 6505P is $586 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen Threadripper PRO 3955WX delivers 34.8 pts/$ vs 69.9 pts/$ for the Xeon 6505P — making the Xeon 6505P the 67.1% better value option.