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 9755

2024

Why buy it

✅+500.2% higher PassMark.
✅+1500% larger total L3 cache (512 MB vs 32 MB).
✅Better for workstations and heavier parallel workloads: 128 cores / 256 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

❌Worse for gaming: lower average FPS than Ryzen 7 5800X across 29 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 12.8 vs 61.7 PassMark/$ ($12,984 MSRP vs $449 MSRP).
❌376.2% higher power demand at 500W vs 105W.

Ryzen 7 5800X

2020

Why buy it

✅Better for gaming: +5.4% higher average FPS across 29 shared CPU benchmark tests.
✅Costs $12,535 less on MSRP ($449 MSRP vs $12,984 MSRP).
✅Delivers 381.8% more PassMark for each dollar spent, at 61.7 vs 12.8 PassMark/$ ($449 MSRP vs $12,984 MSRP).
✅Draws 105W instead of 500W, a 395W reduction.

Trade-offs

❌Lower PassMark (27,712 vs 166,328).
❌Smaller total L3 cache (32 MB vs 512 MB).
❌Less compelling for workstation-style loads than EPYC 9755, which brings 128 cores / 256 threads and 128 PCIe lanes.
❌Older platform position on AM4 with DDR4, while EPYC 9755 moves to SP5 and DDR5.

EPYC 9755

2024

Ryzen 7 5800X

2020

Why buy it

✅+500.2% higher PassMark.
✅+1500% larger total L3 cache (512 MB vs 32 MB).
✅Better for workstations and heavier parallel workloads: 128 cores / 256 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

✅Better for gaming: +5.4% higher average FPS across 29 shared CPU benchmark tests.
✅Costs $12,535 less on MSRP ($449 MSRP vs $12,984 MSRP).
✅Delivers 381.8% more PassMark for each dollar spent, at 61.7 vs 12.8 PassMark/$ ($449 MSRP vs $12,984 MSRP).
✅Draws 105W instead of 500W, a 395W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 5800X across 29 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 12.8 vs 61.7 PassMark/$ ($12,984 MSRP vs $449 MSRP).
❌376.2% higher power demand at 500W vs 105W.

Trade-offs

❌Lower PassMark (27,712 vs 166,328).
❌Smaller total L3 cache (32 MB vs 512 MB).
❌Less compelling for workstation-style loads than EPYC 9755, which brings 128 cores / 256 threads and 128 PCIe lanes.
❌Older platform position on AM4 with DDR4, while EPYC 9755 moves to SP5 and DDR5.

Quick Answers

So, is EPYC 9755 better than Ryzen 7 5800X?

Not in a simple one-size-fits-all way. EPYC 9755 makes more sense for workstation-style multi-core throughput, while Ryzen 7 5800X is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

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

For streaming, content creation, and heavier multitasking, EPYC 9755 is the better fit. You are getting 500.2% better PassMark, backed by 128 cores and 256 threads. It also carries the larger cache pool with 1500% larger total L3 cache (512 MB vs 32 MB).

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

EPYC 9755 is still the faster CPU overall, but Ryzen 7 5800X makes more sense if price matters more than absolute performance. EPYC 9755 is 2791.8% more expensive on MSRP at $12,984 MSRP versus $449 MSRP, and it gives you 500.2% better PassMark. The trade-off is that Ryzen 7 5800X is still the better pure gaming CPU with a 5.4% average FPS lead across 29 shared CPU game tests in our data. Ryzen 7 5800X is also 381.8% better value on MSRP (61.7 vs 12.8 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

EPYC 9755 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, 1500% larger total L3 cache (512 MB vs 32 MB), and more multi-core headroom with 128 cores / 256 threads instead of 8/16. 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 9755 Benchmark Check

Ryzen 7 5800X Benchmark Check

Path of Exile 2

Preset	EPYC 9755	Ryzen 7 5800X
1080p
low	170 FPS	206 FPS
medium	141 FPS	178 FPS
high	120 FPS	146 FPS
ultra	95 FPS	110 FPS
1440p
low	148 FPS	170 FPS
medium	119 FPS	142 FPS
high	95 FPS	115 FPS
ultra	76 FPS	88 FPS
4K
low	69 FPS	83 FPS
medium	59 FPS	74 FPS
high	47 FPS	59 FPS
ultra	38 FPS	46 FPS

Open EPYC 9755 Open Ryzen 7 5800X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 9755	Ryzen 7 5800X
1080p
low	581 FPS	662 FPS
medium	510 FPS	558 FPS
high	414 FPS	466 FPS
ultra	361 FPS	417 FPS
1440p
low	489 FPS	563 FPS
medium	437 FPS	493 FPS
high	365 FPS	423 FPS
ultra	302 FPS	361 FPS
4K
low	304 FPS	350 FPS
medium	275 FPS	308 FPS
high	247 FPS	288 FPS
ultra	221 FPS	250 FPS

Open EPYC 9755 Open Ryzen 7 5800X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 9755	Ryzen 7 5800X
1080p
low	741 FPS	693 FPS
medium	632 FPS	651 FPS
high	574 FPS	570 FPS
ultra	505 FPS	464 FPS
1440p
low	558 FPS	693 FPS
medium	473 FPS	573 FPS
high	423 FPS	498 FPS
ultra	366 FPS	413 FPS
4K
low	403 FPS	484 FPS
medium	324 FPS	410 FPS
high	286 FPS	363 FPS
ultra	229 FPS	302 FPS

Open EPYC 9755 Open Ryzen 7 5800X

League of Legends

League of Legends

Valorant

Preset	EPYC 9755	Ryzen 7 5800X
1080p
low	915 FPS	693 FPS
medium	830 FPS	693 FPS
high	715 FPS	693 FPS
ultra	632 FPS	693 FPS
1440p
low	726 FPS	693 FPS
medium	633 FPS	693 FPS
high	542 FPS	672 FPS
ultra	469 FPS	593 FPS
4K
low	524 FPS	604 FPS
medium	468 FPS	550 FPS
high	411 FPS	495 FPS
ultra	352 FPS	436 FPS

Open EPYC 9755 Open Ryzen 7 5800X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 9755 and Ryzen 7 5800X

EPYC 9755

The EPYC 9755 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 128 cores and 256 threads. Base frequency is 2.7 GHz, with boost up to 4.1 GHz. L3 cache: 512 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 500 Watt. Memory support: DDR5. Passmark benchmark score: 166,328 points. Launch price was $12,984.

Ryzen 7 5800X

The Ryzen 7 5800X 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 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.

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Processing Power

The EPYC 9755 packs 128 cores / 256 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the EPYC 9755 has 120 more cores. Boost clocks reach 4.1 GHz on the EPYC 9755 versus 4.7 GHz on the Ryzen 7 5800X — a 13.6% clock advantage for the Ryzen 7 5800X (base: 2.7 GHz vs 3.8 GHz). The EPYC 9755 uses the Turin (2024) architecture (4 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the EPYC 9755 scores 166,328 against the Ryzen 7 5800X's 27,712 — a 142.9% lead for the EPYC 9755. L3 cache: 512 MB (total) on the EPYC 9755 vs 32 MB on the Ryzen 7 5800X.

Feature	EPYC 9755	Ryzen 7 5800X
Cores / Threads	128 / 256+1500%	8 / 16
Boost Clock	4.1 GHz	4.7 GHz+15%
Base Clock	2.7 GHz	3.8 GHz+41%
L3 Cache	512 MB (total)+1500%	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	166,328+500%	27,712
Geekbench 6 Single	2,800	—
Geekbench 6 Multi	29,300	—

🧠

Memory & Platform

The EPYC 9755 uses the SP5 socket (PCIe 5.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6000 on the EPYC 9755 versus DDR4-3200 on the Ryzen 7 5800X — the EPYC 9755 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 5800X supports up to 128 GB of RAM compared to 9 TB — 173.7% more capacity for professional workloads. Memory channels: 12 (EPYC 9755) vs 2 (Ryzen 7 5800X). PCIe lanes: 128 (EPYC 9755) vs 24 (Ryzen 7 5800X) — the EPYC 9755 offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP5 (EPYC 9755) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X).

Feature	EPYC 9755	Ryzen 7 5800X
Socket	SP5	AM4
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-6000+25%	DDR4-3200
Max RAM Capacity	9 TB+7100%	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 9755) vs AMD-V (Ryzen 7 5800X). Primary use case: EPYC 9755 targets Data Center / Cloud Computing, Ryzen 7 5800X targets Desktop. Direct competitor: EPYC 9755 rivals Xeon 6980P.

Feature	EPYC 9755	Ryzen 7 5800X
Integrated GPU	No	No
Unlocked	—	Yes
AVX-512	—	No
Virtualization	AMD-V, SEV-SNP	AMD-V
Target Use	Data Center / Cloud Computing	Desktop

💰

Value Analysis

The EPYC 9755 launched at $12984 MSRP, while the Ryzen 7 5800X debuted at $449. On MSRP ($12984 vs $449), the Ryzen 7 5800X is $12535 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 9755 delivers 12.8 pts/$ vs 61.7 pts/$ for the Ryzen 7 5800X — making the Ryzen 7 5800X the 131.2% better value option.