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 9555

2024

Why buy it

✅Better for gaming: +5.1% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $660 less on MSRP ($9,826 MSRP vs $10,486 MSRP).
✅Draws 360W instead of 400W, a 40W reduction.

Trade-offs

❌Lower PassMark (133,253 vs 135,221).
❌Smaller total L3 cache (256 MB vs 384 MB).

EPYC 9565

2024

Why buy it

✅+1.5% higher PassMark.
✅+50% larger total L3 cache (384 MB vs 256 MB).

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9555 across 50 shared CPU benchmark tests.
❌
6.7% HIGHER MSRP
$10,486 MSRPvs$9,826 MSRP

EPYC 9555

2024

EPYC 9565

2024

Why buy it

✅Better for gaming: +5.1% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $660 less on MSRP ($9,826 MSRP vs $10,486 MSRP).
✅Draws 360W instead of 400W, a 40W reduction.

Why buy it

✅+1.5% higher PassMark.
✅+50% larger total L3 cache (384 MB vs 256 MB).

Trade-offs

❌Lower PassMark (133,253 vs 135,221).
❌Smaller total L3 cache (256 MB vs 384 MB).

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9555 across 50 shared CPU benchmark tests.
❌
6.7% HIGHER MSRP
$10,486 MSRPvs$9,826 MSRP

Quick Answers

So, is EPYC 9555 better than EPYC 9565?

It depends on what matters more to you. For gaming, EPYC 9555 is ahead with a 5.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 9565 pulls ahead with 1.5% better PassMark. EPYC 9565 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 9565 is the better fit. You are getting 1.5% better PassMark, backed by 72 cores and 144 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 9555 is the smarter buy today. EPYC 9555 is $660 cheaper on MSRP at $9,826 MSRP versus $10,486 MSRP, and it gives you a 5.1% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that EPYC 9565 is still stronger for heavier multi-core work with 1.5% better PassMark. It is also 5.2% better value on MSRP (13.6 vs 12.9 PassMark/$), 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 9565 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 72 cores / 144 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 9555 Benchmark Check

EPYC 9565 Benchmark Check

Path of Exile 2

Preset	EPYC 9555	EPYC 9565
1080p
low	171 FPS	171 FPS
medium	142 FPS	142 FPS
high	122 FPS	121 FPS
ultra	99 FPS	98 FPS
1440p
low	150 FPS	150 FPS
medium	121 FPS	120 FPS
high	99 FPS	98 FPS
ultra	83 FPS	81 FPS
4K
low	84 FPS	81 FPS
medium	73 FPS	69 FPS
high	57 FPS	55 FPS
ultra	47 FPS	45 FPS

Open EPYC 9555 Open EPYC 9565

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 9555	EPYC 9565
1080p
low	655 FPS	583 FPS
medium	566 FPS	511 FPS
high	459 FPS	415 FPS
ultra	397 FPS	361 FPS
1440p
low	546 FPS	492 FPS
medium	483 FPS	439 FPS
high	404 FPS	367 FPS
ultra	328 FPS	302 FPS
4K
low	331 FPS	306 FPS
medium	295 FPS	276 FPS
high	268 FPS	249 FPS
ultra	236 FPS	222 FPS

Open EPYC 9555 Open EPYC 9565

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 9555	EPYC 9565
1080p
low	747 FPS	747 FPS
medium	634 FPS	634 FPS
high	590 FPS	575 FPS
ultra	519 FPS	506 FPS
1440p
low	561 FPS	561 FPS
medium	474 FPS	474 FPS
high	434 FPS	423 FPS
ultra	376 FPS	366 FPS
4K
low	405 FPS	405 FPS
medium	326 FPS	324 FPS
high	288 FPS	286 FPS
ultra	229 FPS	229 FPS

Open EPYC 9555 Open EPYC 9565

League of Legends

League of Legends

Valorant

Preset	EPYC 9555	EPYC 9565
1080p
low	1005 FPS	969 FPS
medium	902 FPS	875 FPS
high	778 FPS	752 FPS
ultra	702 FPS	676 FPS
1440p
low	809 FPS	780 FPS
medium	704 FPS	683 FPS
high	603 FPS	583 FPS
ultra	533 FPS	513 FPS
4K
low	574 FPS	551 FPS
medium	510 FPS	496 FPS
high	447 FPS	434 FPS
ultra	392 FPS	380 FPS

Open EPYC 9555 Open EPYC 9565

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 9555 and EPYC 9565

EPYC 9555

The EPYC 9555 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: 133,253 points. Launch price was $9,826.

EPYC 9565

The EPYC 9565 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 72 cores and 144 threads. Base frequency is 3.15 GHz, with boost up to 4.3 GHz. L3 cache: 384 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 400 Watt. Memory support: DDR5. Passmark benchmark score: 135,221 points. Launch price was $10,486.

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Processing Power

The EPYC 9555 packs 64 cores / 128 threads, while the EPYC 9565 offers 72 cores / 144 threads — the EPYC 9565 has 8 more cores. Boost clocks reach 4.4 GHz on the EPYC 9555 versus 4.3 GHz on the EPYC 9565 — a 2.3% clock advantage for the EPYC 9555 (base: 3.2 GHz vs 3.15 GHz). Both are built on the Turin (2024) architecture using a 4 nm process. In PassMark, the EPYC 9555 scores 133,253 against the EPYC 9565's 135,221 — a 1.5% lead for the EPYC 9565. L3 cache: 256 MB (total) on the EPYC 9555 vs 384 MB (total) on the EPYC 9565.

Feature	EPYC 9555	EPYC 9565
Cores / Threads	64 / 128	72 / 144+13%
Boost Clock	4.4 GHz+2%	4.3 GHz
Base Clock	3.2 GHz+2%	3.15 GHz
L3 Cache	256 MB (total)	384 MB (total)+50%
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm	4 nm
Architecture	Turin (2024)	Turin (2024)
PassMark	133,253	135,221+1%

🧠

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 9555) and SP5 (EPYC 9565).

Feature	EPYC 9555	EPYC 9565
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 9555 targets Data Center, EPYC 9565 targets Data Center / Cloud Computing. Direct competitor: EPYC 9555 rivals Xeon 6972P; EPYC 9565 rivals Xeon 6972P.

Feature	EPYC 9555	EPYC 9565
Integrated GPU	No	No
Virtualization	AMD-V, SEV-SNP	AMD-V, SEV-SNP
Target Use	Data Center	Data Center / Cloud Computing

💰

Value Analysis

The EPYC 9555 launched at $9826 MSRP, while the EPYC 9565 debuted at $10486. On MSRP ($9826 vs $10486), the EPYC 9555 is $660 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 9555 delivers 13.6 pts/$ vs 12.9 pts/$ for the EPYC 9565 — making the EPYC 9555 the 5% better value option.