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 9555P

2024

Why buy it

✅Better for gaming: +23.3% higher average FPS across 4 shared CPU benchmark tests.
✅Costs $6,830 less on MSRP ($7,983 MSRP vs $14,813 MSRP).
✅Delivers 56.3% more PassMark for each dollar spent, at 17.0 vs 10.9 PassMark/$ ($7,983 MSRP vs $14,813 MSRP).
✅Draws 360W instead of 500W, a 140W reduction.

Trade-offs

❌Lower PassMark (135,441 vs 160,778).
❌Smaller total L3 cache (256 MB vs 384 MB).

EPYC 9965

2024

Why buy it

✅+18.7% higher PassMark.
✅+50% larger total L3 cache (384 MB vs 256 MB).

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9555P across 4 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 10.9 vs 17.0 PassMark/$ ($14,813 MSRP vs $7,983 MSRP).
❌38.9% higher power demand at 500W vs 360W.

EPYC 9555P

2024

EPYC 9965

2024

Why buy it

✅Better for gaming: +23.3% higher average FPS across 4 shared CPU benchmark tests.
✅Costs $6,830 less on MSRP ($7,983 MSRP vs $14,813 MSRP).
✅Delivers 56.3% more PassMark for each dollar spent, at 17.0 vs 10.9 PassMark/$ ($7,983 MSRP vs $14,813 MSRP).
✅Draws 360W instead of 500W, a 140W reduction.

Why buy it

✅+18.7% higher PassMark.
✅+50% larger total L3 cache (384 MB vs 256 MB).

Trade-offs

❌Lower PassMark (135,441 vs 160,778).
❌Smaller total L3 cache (256 MB vs 384 MB).

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9555P across 4 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 10.9 vs 17.0 PassMark/$ ($14,813 MSRP vs $7,983 MSRP).
❌38.9% higher power demand at 500W vs 360W.

Quick Answers

So, is EPYC 9555P better than EPYC 9965?

It depends on what matters more to you. For gaming, EPYC 9555P is ahead with a 23.3% average FPS lead across 4 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 9965 pulls ahead with 18.7% better PassMark. EPYC 9965 also has the bigger cache pool with 50% larger total L3 cache (384 MB vs 256 MB).

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

For streaming, content creation, and heavier multitasking, EPYC 9965 is the better fit. You are getting 18.7% better PassMark, backed by 192 cores and 384 threads. It also carries the larger cache pool with 50% larger total L3 cache (384 MB vs 256 MB).

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

EPYC 9555P is the smarter buy today. EPYC 9555P is $6,830 cheaper on MSRP at $7,983 MSRP versus $14,813 MSRP, and it gives you a 23.3% average FPS lead across 4 shared CPU game tests in our data. The trade-off is that EPYC 9965 is still stronger for heavier multi-core work with 18.7% better PassMark. It is also 56.3% better value on MSRP (17.0 vs 10.9 PassMark/$), 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?

EPYC 9965 is the more future-proof choice for 2026 and beyond. You are getting 50% larger total L3 cache (384 MB vs 256 MB) and more multi-core headroom with 192 cores / 384 threads instead of 64/128. That extra cache should hold up really well in CPU-limited games and high-refresh builds.

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 9555P Benchmark Check

EPYC 9965 Benchmark Check

Path of Exile 2

Preset	EPYC 9555P	EPYC 9965
1080p
low	171 FPS	192 FPS
medium	142 FPS	156 FPS
high	122 FPS	126 FPS
ultra	99 FPS	98 FPS
1440p
low	150 FPS	158 FPS
medium	121 FPS	124 FPS
high	99 FPS	96 FPS
ultra	83 FPS	77 FPS
4K
low	84 FPS	72 FPS
medium	73 FPS	60 FPS
high	57 FPS	47 FPS
ultra	47 FPS	39 FPS

Open EPYC 9555P Open EPYC 9965

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 9555P	EPYC 9965
1080p
low	655 FPS	274 FPS
medium	566 FPS	241 FPS
high	459 FPS	198 FPS
ultra	397 FPS	163 FPS
1440p
low	546 FPS	225 FPS
medium	483 FPS	202 FPS
high	404 FPS	171 FPS
ultra	328 FPS	137 FPS
4K
low	331 FPS	139 FPS
medium	295 FPS	128 FPS
high	268 FPS	115 FPS
ultra	236 FPS	96 FPS

Open EPYC 9555P Open EPYC 9965

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 9555P	EPYC 9965
1080p
low	747 FPS	743 FPS
medium	634 FPS	610 FPS
high	590 FPS	556 FPS
ultra	519 FPS	481 FPS
1440p
low	561 FPS	594 FPS
medium	474 FPS	494 FPS
high	434 FPS	450 FPS
ultra	376 FPS	390 FPS
4K
low	405 FPS	430 FPS
medium	326 FPS	335 FPS
high	288 FPS	298 FPS
ultra	229 FPS	240 FPS

Open EPYC 9555P Open EPYC 9965

League of Legends

League of Legends

Valorant

Preset	EPYC 9555P	EPYC 9965
1080p
low	1005 FPS	962 FPS
medium	902 FPS	873 FPS
high	778 FPS	752 FPS
ultra	702 FPS	650 FPS
1440p
low	809 FPS	740 FPS
medium	704 FPS	648 FPS
high	603 FPS	554 FPS
ultra	533 FPS	476 FPS
4K
low	574 FPS	531 FPS
medium	510 FPS	475 FPS
high	447 FPS	417 FPS
ultra	392 FPS	360 FPS

Open EPYC 9555P Open EPYC 9965

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 9555P and EPYC 9965

EPYC 9555P

The EPYC 9555P is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 64 cores and 128 threads. Base frequency is 3.2 GHz, with boost up to 4.4 GHz. L3 cache: 256 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 360 Watt. Memory support: DDR5. Passmark benchmark score: 135,441 points. Launch price was $7,983.

EPYC 9965

The EPYC 9965 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 192 cores and 384 threads. Base frequency is 2.25 GHz, with boost up to 3.7 GHz. L3 cache: 384 MB (total). L2 cache: 1 MB (per core). Built on 3 nm process technology. Socket: SP5. Thermal design power (TDP): 500 Watt. Memory support: DDR5. Passmark benchmark score: 160,778 points. Launch price was $14,813.

⚡

Processing Power

The EPYC 9555P packs 64 cores / 128 threads, while the EPYC 9965 offers 192 cores / 384 threads — the EPYC 9965 has 128 more cores. Boost clocks reach 4.4 GHz on the EPYC 9555P versus 3.7 GHz on the EPYC 9965 — a 17.3% clock advantage for the EPYC 9555P (base: 3.2 GHz vs 2.25 GHz). Both are built on the Turin (2024) architecture using a 4 nm process. In PassMark, the EPYC 9555P scores 135,441 against the EPYC 9965's 160,778 — a 17.1% lead for the EPYC 9965. Geekbench 6 single-core — the metric most relevant to gaming — records 2,815 vs 1,520, a 59.7% lead for the EPYC 9555P that directly translates to higher frame rates. L3 cache: 256 MB (total) on the EPYC 9555P vs 384 MB (total) on the EPYC 9965.

Feature	EPYC 9555P	EPYC 9965
Cores / Threads	64 / 128	192 / 384+200%
Boost Clock	4.4 GHz+19%	3.7 GHz
Base Clock	3.2 GHz+42%	2.25 GHz
L3 Cache	256 MB (total)	384 MB (total)+50%
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm	3 nm-25%
Architecture	Turin (2024)	Turin (2024)
PassMark	135,441	160,778+19%
Geekbench 6 Single	2,815+85%	1,520
Geekbench 6 Multi	29,406	—

🧠

Memory & Platform

Both processors use the SP5 socket with PCIe 5.0. Both support up to DDR5-6000 memory speed. Both support up to 6 TB of RAM. Both feature 12-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: SP5 (EPYC 9555P) and SP5 (EPYC 9965).

Feature	EPYC 9555P	EPYC 9965
Socket	SP5	SP5
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-6000	DDR5-6000
Max RAM Capacity	6 TB	6 TB
RAM Channels	12	12
ECC Support	Yes	Yes
PCIe Lanes	128	128

🔧

Advanced Features

Both support AMD-V, SEV-SNP virtualization. Primary use case: EPYC 9555P targets Data Center / Single Socket, EPYC 9965 targets Data Center / High Density. Direct competitor: EPYC 9555P rivals Xeon 6979P; EPYC 9965 rivals Xeon 6980P.

Feature	EPYC 9555P	EPYC 9965
Integrated GPU	No	No
Virtualization	AMD-V, SEV-SNP	AMD-V, SEV-SNP
Target Use	Data Center / Single Socket	Data Center / High Density

💰

Value Analysis

The EPYC 9555P launched at $7983 MSRP, while the EPYC 9965 debuted at $14813. On MSRP ($7983 vs $14813), the EPYC 9555P is $6830 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 9555P delivers 17.0 pts/$ vs 10.9 pts/$ for the EPYC 9965 — making the EPYC 9555P the 43.9% better value option.