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.

EPYC 7543P

2021

Why buy it

✅+300% larger total L3 cache (256 MB vs 64 MB).
✅Draws 225W instead of 350W, a 125W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 9955WX across 4 shared CPU benchmark tests.
❌Lower PassMark (66,590 vs 67,561).
❌Lower PassMark per dollar, at 24.4 vs 157.5 PassMark/$ ($2,730 MSRP vs $429 MSRP).
❌Older platform position on SP3 with DDR4, while Ryzen Threadripper PRO 9955WX moves to sTR5 and DDR5.

Ryzen Threadripper PRO 9955WX

2025

Why buy it

✅Better for gaming: +16.2% higher average FPS across 4 shared CPU benchmark tests.
✅Costs $2,301 less on MSRP ($429 MSRP vs $2,730 MSRP).
✅Delivers 545.6% more PassMark for each dollar spent, at 157.5 vs 24.4 PassMark/$ ($429 MSRP vs $2,730 MSRP).
✅Newer platform on sTR5 with DDR5 support instead of SP3 and DDR4.

Trade-offs

❌Smaller total L3 cache (64 MB vs 256 MB).
❌55.6% higher power demand at 350W vs 225W.

EPYC 7543P

2021

Ryzen Threadripper PRO 9955WX

2025

Why buy it

✅+300% larger total L3 cache (256 MB vs 64 MB).
✅Draws 225W instead of 350W, a 125W reduction.

Why buy it

✅Better for gaming: +16.2% higher average FPS across 4 shared CPU benchmark tests.
✅Costs $2,301 less on MSRP ($429 MSRP vs $2,730 MSRP).
✅Delivers 545.6% more PassMark for each dollar spent, at 157.5 vs 24.4 PassMark/$ ($429 MSRP vs $2,730 MSRP).
✅Newer platform on sTR5 with DDR5 support instead of SP3 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 9955WX across 4 shared CPU benchmark tests.
❌Lower PassMark (66,590 vs 67,561).
❌Lower PassMark per dollar, at 24.4 vs 157.5 PassMark/$ ($2,730 MSRP vs $429 MSRP).
❌Older platform position on SP3 with DDR4, while Ryzen Threadripper PRO 9955WX moves to sTR5 and DDR5.

Trade-offs

❌Smaller total L3 cache (64 MB vs 256 MB).
❌55.6% higher power demand at 350W vs 225W.

Quick Answers

So, is Ryzen Threadripper PRO 9955WX better than EPYC 7543P?

Yes. Ryzen Threadripper PRO 9955WX is the better overall CPU here. You are getting a 16.2% average FPS lead across 4 shared CPU game tests in our data, 1.5% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen Threadripper PRO 9955WX is the better pick here. According to our tests, it delivers 16.2% 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 9955WX is the better fit. You are getting 1.5% better PassMark, backed by 16 cores and 32 threads.

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

Ryzen Threadripper PRO 9955WX is the smarter buy today. Ryzen Threadripper PRO 9955WX is $2,301 cheaper on MSRP at $429 MSRP versus $2,730 MSRP, and it gives you a 16.2% average FPS lead across 4 shared CPU game tests in our data. It is also 545.6% better value on MSRP (157.5 vs 24.4 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Ryzen Threadripper PRO 9955WX is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2021), a healthier platform with sTR5 and DDR5 instead of SP3, more multi-core headroom with 16 cores / 32 threads instead of 32/64, and AVX-512 support for heavier modern compute workloads. 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.

EPYC 7543P Benchmark Check

Ryzen Threadripper PRO 9955WX Benchmark Check

Path of Exile 2

Preset	EPYC 7543P	Ryzen Threadripper PRO 9955WX
1080p
low	198 FPS	297 FPS
medium	161 FPS	270 FPS
high	129 FPS	223 FPS
ultra	100 FPS	188 FPS
1440p
low	161 FPS	273 FPS
medium	126 FPS	224 FPS
high	98 FPS	174 FPS
ultra	78 FPS	153 FPS
4K
low	73 FPS	187 FPS
medium	61 FPS	154 FPS
high	47 FPS	118 FPS
ultra	39 FPS	104 FPS

Open EPYC 7543P Open Ryzen Threadripper PRO 9955WX

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 7543P	Ryzen Threadripper PRO 9955WX
1080p
low	507 FPS	781 FPS
medium	443 FPS	642 FPS
high	354 FPS	476 FPS
ultra	288 FPS	402 FPS
1440p
low	417 FPS	641 FPS
medium	373 FPS	546 FPS
high	308 FPS	420 FPS
ultra	243 FPS	326 FPS
4K
low	257 FPS	360 FPS
medium	234 FPS	310 FPS
high	205 FPS	271 FPS
ultra	171 FPS	228 FPS

Open EPYC 7543P Open Ryzen Threadripper PRO 9955WX

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 7543P	Ryzen Threadripper PRO 9955WX
1080p
low	850 FPS	888 FPS
medium	705 FPS	705 FPS
high	657 FPS	622 FPS
ultra	580 FPS	534 FPS
1440p
low	612 FPS	713 FPS
medium	506 FPS	567 FPS
high	464 FPS	489 FPS
ultra	405 FPS	414 FPS
4K
low	437 FPS	507 FPS
medium	339 FPS	418 FPS
high	303 FPS	375 FPS
ultra	245 FPS	315 FPS

Open EPYC 7543P Open Ryzen Threadripper PRO 9955WX

League of Legends

League of Legends

Valorant

Preset	EPYC 7543P	Ryzen Threadripper PRO 9955WX
1080p
low	992 FPS	1106 FPS
medium	900 FPS	991 FPS
high	775 FPS	867 FPS
ultra	671 FPS	781 FPS
1440p
low	763 FPS	860 FPS
medium	665 FPS	759 FPS
high	569 FPS	664 FPS
ultra	490 FPS	576 FPS
4K
low	547 FPS	632 FPS
medium	488 FPS	562 FPS
high	428 FPS	496 FPS
ultra	370 FPS	429 FPS

Open EPYC 7543P Open Ryzen Threadripper PRO 9955WX

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 7543P and Ryzen Threadripper PRO 9955WX

EPYC 7543P

The EPYC 7543P 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: 66,590 points. Launch price was $2,730.

Ryzen Threadripper PRO 9955WX

The Ryzen Threadripper PRO 9955WX is manufactured by AMD. It was released in 23 July 2025 (less than a year ago). It is based on the Shimada Peak (2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.5 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: 67,561 points. Launch price was $1,649.

⚡

Processing Power

The EPYC 7543P packs 32 cores / 64 threads, while the Ryzen Threadripper PRO 9955WX offers 16 cores / 32 threads — the EPYC 7543P has 16 more cores. Boost clocks reach 3.7 GHz on the EPYC 7543P versus 5.4 GHz on the Ryzen Threadripper PRO 9955WX — a 37.4% clock advantage for the Ryzen Threadripper PRO 9955WX (base: 2.8 GHz vs 4.5 GHz). The EPYC 7543P uses the Milan (2021−2023) architecture (7 nm+), while the Ryzen Threadripper PRO 9955WX uses Shimada Peak (2025) (4 nm). In PassMark, the EPYC 7543P scores 66,590 against the Ryzen Threadripper PRO 9955WX's 67,561 — a 1.4% lead for the Ryzen Threadripper PRO 9955WX. L3 cache: 256 MB (total) on the EPYC 7543P vs 64 MB (total) on the Ryzen Threadripper PRO 9955WX.

Feature	EPYC 7543P	Ryzen Threadripper PRO 9955WX
Cores / Threads	32 / 64+100%	16 / 32
Boost Clock	3.7 GHz	5.4 GHz+46%
Base Clock	2.8 GHz	4.5 GHz+61%
L3 Cache	256 MB (total)+300%	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	66,590	67,561+1%
Cinebench R23 Multi	—	40,000
Geekbench 6 Single	—	3,016
Geekbench 6 Multi	—	23,596

🧠

Memory & Platform

The EPYC 7543P uses the SP3 socket (PCIe 4.0), while the Ryzen Threadripper PRO 9955WX uses sTR5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7543P versus DDR5-6400 on the Ryzen Threadripper PRO 9955WX — the EPYC 7543P supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7543P supports up to 4096 of RAM compared to 2048 GB — 66.7% more capacity for professional workloads. Both feature 8-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: SP3 (EPYC 7543P) and WRX90 (Ryzen Threadripper PRO 9955WX).

Feature	EPYC 7543P	Ryzen Threadripper PRO 9955WX
Socket	SP3	sTR5
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	3200+63900%	DDR5-6400
Max RAM Capacity	4096	2048 GB+52428700%
RAM Channels	8	8
ECC Support	Yes	Yes
PCIe Lanes	128	128

🔧

Advanced Features

Only the Ryzen Threadripper PRO 9955WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen Threadripper PRO 9955WX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (EPYC 7543P) vs true (Ryzen Threadripper PRO 9955WX). Direct competitor: EPYC 7543P rivals Xeon Platinum 8380; Ryzen Threadripper PRO 9955WX rivals Xeon w7-3555.

Feature	EPYC 7543P	Ryzen Threadripper PRO 9955WX
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	Yes
AVX-512	No	Yes
Virtualization	VT-x, VT-d	true

💰

Value Analysis

The EPYC 7543P launched at $2730 MSRP, while the Ryzen Threadripper PRO 9955WX debuted at $429. On MSRP ($2730 vs $429), the Ryzen Threadripper PRO 9955WX is $2301 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7543P delivers 24.4 pts/$ vs 157.5 pts/$ for the Ryzen Threadripper PRO 9955WX — making the Ryzen Threadripper PRO 9955WX the 146.4% better value option.