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: +18.6% higher average FPS across 50 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 64 cores / 128 threads, plus 128 PCIe lanes vs 24.
✅Newer platform on SP5 with DDR5 support instead of AM4 and DDR4.
✅433.3% more PCIe lanes (128 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 17.0 vs 73.1 PassMark/$ ($7,983 MSRP vs $299 MSRP).
❌453.8% higher power demand at 360W vs 65W.

Ryzen 5 5600X

2020

Why buy it

✅Costs $7,684 less on MSRP ($299 MSRP vs $7,983 MSRP).
✅Delivers 330.6% more PassMark for each dollar spent, at 73.1 vs 17.0 PassMark/$ ($299 MSRP vs $7,983 MSRP).
✅Draws 65W instead of 360W, a 295W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9555P across 50 shared CPU benchmark tests.
❌Lower PassMark (21,845 vs 135,441).
❌Less compelling for workstation-style loads than EPYC 9555P, which brings 64 cores / 128 threads and 128 PCIe lanes.
❌Older platform position on AM4 with DDR4, while EPYC 9555P moves to SP5 and DDR5.

EPYC 9555P

2024

Ryzen 5 5600X

2020

Why buy it

✅Better for gaming: +18.6% higher average FPS across 50 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 64 cores / 128 threads, plus 128 PCIe lanes vs 24.
✅Newer platform on SP5 with DDR5 support instead of AM4 and DDR4.
✅433.3% more PCIe lanes (128 vs 24) for storage and expansion-heavy builds.

Why buy it

✅Costs $7,684 less on MSRP ($299 MSRP vs $7,983 MSRP).
✅Delivers 330.6% more PassMark for each dollar spent, at 73.1 vs 17.0 PassMark/$ ($299 MSRP vs $7,983 MSRP).
✅Draws 65W instead of 360W, a 295W reduction.

Trade-offs

❌Lower PassMark per dollar, at 17.0 vs 73.1 PassMark/$ ($7,983 MSRP vs $299 MSRP).
❌453.8% higher power demand at 360W vs 65W.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9555P across 50 shared CPU benchmark tests.
❌Lower PassMark (21,845 vs 135,441).
❌Less compelling for workstation-style loads than EPYC 9555P, which brings 64 cores / 128 threads and 128 PCIe lanes.
❌Older platform position on AM4 with DDR4, while EPYC 9555P moves to SP5 and DDR5.

Quick Answers

So, is EPYC 9555P better than Ryzen 5 5600X?

Not in a simple one-size-fits-all way. EPYC 9555P makes more sense for workstation-style multi-core throughput, while Ryzen 5 5600X is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, EPYC 9555P is the better pick here. According to our tests, it delivers 18.6% more average FPS across 50 shared CPU game tests. It also has a big cache advantage at 256 MB vs 32 MB.

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

For streaming, content creation, and heavier multitasking, EPYC 9555P is the better fit. You are getting 520% better PassMark, backed by 64 cores and 128 threads. It also carries the larger cache pool with 700% larger total L3 cache (256 MB vs 32 MB).

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

EPYC 9555P is still the faster CPU overall, but Ryzen 5 5600X makes more sense if price matters more than absolute performance. EPYC 9555P is 2569.9% more expensive on MSRP at $7,983 MSRP versus $299 MSRP, and it gives you a 18.6% average FPS lead across 50 shared CPU game tests in our data. Ryzen 5 5600X is also 330.6% better value on MSRP (73.1 vs 17.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

EPYC 9555P is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2020), a healthier platform with SP5 and DDR5 instead of AM4, 3D V-Cache and a much larger 256 MB L3 cache instead of 32 MB, and more multi-core headroom with 64 cores / 128 threads instead of 6/12. 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 9555P Benchmark Check

Ryzen 5 5600X Benchmark Check

Path of Exile 2

Preset	EPYC 9555P	Ryzen 5 5600X
1080p
low	171 FPS	203 FPS
medium	142 FPS	174 FPS
high	122 FPS	140 FPS
ultra	99 FPS	107 FPS
1440p
low	150 FPS	169 FPS
medium	121 FPS	141 FPS
high	99 FPS	113 FPS
ultra	83 FPS	86 FPS
4K
low	84 FPS	85 FPS
medium	73 FPS	76 FPS
high	57 FPS	60 FPS
ultra	47 FPS	47 FPS

Open EPYC 9555P Open Ryzen 5 5600X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 9555P	Ryzen 5 5600X
1080p
low	655 FPS	464 FPS
medium	566 FPS	387 FPS
high	459 FPS	324 FPS
ultra	397 FPS	291 FPS
1440p
low	546 FPS	397 FPS
medium	483 FPS	334 FPS
high	404 FPS	290 FPS
ultra	328 FPS	253 FPS
4K
low	331 FPS	263 FPS
medium	295 FPS	226 FPS
high	268 FPS	205 FPS
ultra	236 FPS	171 FPS

Open EPYC 9555P Open Ryzen 5 5600X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 9555P	Ryzen 5 5600X
1080p
low	747 FPS	546 FPS
medium	634 FPS	473 FPS
high	590 FPS	432 FPS
ultra	519 FPS	358 FPS
1440p
low	561 FPS	508 FPS
medium	474 FPS	413 FPS
high	434 FPS	375 FPS
ultra	376 FPS	312 FPS
4K
low	405 FPS	348 FPS
medium	326 FPS	292 FPS
high	288 FPS	255 FPS
ultra	229 FPS	199 FPS

Open EPYC 9555P Open Ryzen 5 5600X

League of Legends

League of Legends

Valorant

Preset	EPYC 9555P	Ryzen 5 5600X
1080p
low	1005 FPS	546 FPS
medium	902 FPS	546 FPS
high	778 FPS	546 FPS
ultra	702 FPS	546 FPS
1440p
low	809 FPS	546 FPS
medium	704 FPS	546 FPS
high	603 FPS	546 FPS
ultra	533 FPS	524 FPS
4K
low	574 FPS	529 FPS
medium	510 FPS	484 FPS
high	447 FPS	435 FPS
ultra	392 FPS	379 FPS

Open EPYC 9555P Open Ryzen 5 5600X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 9555P and Ryzen 5 5600X

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.

Ryzen 5 5600X

The Ryzen 5 5600X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 6 cores and 12 threads. Base frequency is 3.7 GHz, with boost up to 4.6 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 21,845 points. Launch price was $299.

⚡

Processing Power

The EPYC 9555P packs 64 cores / 128 threads, while the Ryzen 5 5600X offers 6 cores / 12 threads — the EPYC 9555P has 58 more cores. Boost clocks reach 4.4 GHz on the EPYC 9555P versus 4.6 GHz on the Ryzen 5 5600X — a 4.4% clock advantage for the Ryzen 5 5600X (base: 3.2 GHz vs 3.7 GHz). The EPYC 9555P uses the Turin (2024) architecture (4 nm), while the Ryzen 5 5600X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the EPYC 9555P scores 135,441 against the Ryzen 5 5600X's 21,845 — a 144.4% lead for the EPYC 9555P. L3 cache: 256 MB (total) on the EPYC 9555P vs 32 MB on the Ryzen 5 5600X.

Feature	EPYC 9555P	Ryzen 5 5600X
Cores / Threads	64 / 128+967%	6 / 12
Boost Clock	4.4 GHz	4.6 GHz+5%
Base Clock	3.2 GHz	3.7 GHz+16%
L3 Cache	256 MB (total)+700%	32 MB
L2 Cache	1 MB (per core)+100%	512K (per core)
Process	4 nm-43%	7 nm, 12 nm
Architecture	Turin (2024)	Vermeer (Zen 3) (2020−2022)
PassMark	135,441+520%	21,845
Geekbench 6 Single	2,815	—
Geekbench 6 Multi	29,406	—

🧠

Memory & Platform

The EPYC 9555P uses the SP5 socket (PCIe 5.0), while the Ryzen 5 5600X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6000 on the EPYC 9555P versus DDR4-3200 on the Ryzen 5 5600X — the EPYC 9555P supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 5 5600X supports up to 128 GB of RAM compared to 6 TB — 182.1% more capacity for professional workloads. Memory channels: 12 (EPYC 9555P) vs 2 (Ryzen 5 5600X). PCIe lanes: 128 (EPYC 9555P) vs 24 (Ryzen 5 5600X) — the EPYC 9555P offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP5 (EPYC 9555P) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 5 5600X).

Feature	EPYC 9555P	Ryzen 5 5600X
Socket	SP5	AM4
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-6000+25%	DDR4-3200
Max RAM Capacity	6 TB+4700%	128 GB
RAM Channels	12+500%	2
ECC Support	Yes	Yes
PCIe Lanes	128+433%	24

🔧

Advanced Features

Virtualization support: AMD-V, SEV-SNP (EPYC 9555P) vs AMD-V (Ryzen 5 5600X). Primary use case: EPYC 9555P targets Data Center / Single Socket, Ryzen 5 5600X targets Desktop. Direct competitor: EPYC 9555P rivals Xeon 6979P.

Feature	EPYC 9555P	Ryzen 5 5600X
Integrated GPU	No	No
Unlocked	—	Yes
AVX-512	—	No
Virtualization	AMD-V, SEV-SNP	AMD-V
Target Use	Data Center / Single Socket	Desktop

💰

Value Analysis

The EPYC 9555P launched at $7983 MSRP, while the Ryzen 5 5600X debuted at $299. On MSRP ($7983 vs $299), the Ryzen 5 5600X is $7684 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 9555P delivers 17.0 pts/$ vs 73.1 pts/$ for the Ryzen 5 5600X — making the Ryzen 5 5600X the 124.6% better value option.