
EPYC 9255
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Xeon 6740E
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Performance Spectrum - CPU
About PassMark
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 9255
2024Why buy it
- ✅Better for gaming: +17.3% higher average FPS across 4 shared CPU benchmark tests.
- ✅+33.3% larger total L3 cache (128 MB vs 96 MB).
- ✅Costs $2,770 less on MSRP ($2,495 MSRP vs $5,265 MSRP).
- ✅Delivers 110.0% more PassMark for each dollar spent, at 30.4 vs 14.5 PassMark/$ ($2,495 MSRP vs $5,265 MSRP).
- ✅Draws 200W instead of 250W, a 50W reduction.
Trade-offs
- ❌Lower PassMark (75,809 vs 76,167).
Xeon 6740E
2024Why buy it
- ✅+0.5% higher PassMark.
Trade-offs
- ❌Worse for gaming: lower average FPS than EPYC 9255 across 4 shared CPU benchmark tests.
- ❌Smaller total L3 cache (96 MB vs 128 MB).
- ❌Lower PassMark per dollar, at 14.5 vs 30.4 PassMark/$ ($5,265 MSRP vs $2,495 MSRP).
- ❌25% higher power demand at 250W vs 200W.
EPYC 9255
2024Xeon 6740E
2024Why buy it
- ✅Better for gaming: +17.3% higher average FPS across 4 shared CPU benchmark tests.
- ✅+33.3% larger total L3 cache (128 MB vs 96 MB).
- ✅Costs $2,770 less on MSRP ($2,495 MSRP vs $5,265 MSRP).
- ✅Delivers 110.0% more PassMark for each dollar spent, at 30.4 vs 14.5 PassMark/$ ($2,495 MSRP vs $5,265 MSRP).
- ✅Draws 200W instead of 250W, a 50W reduction.
Why buy it
- ✅+0.5% higher PassMark.
Trade-offs
- ❌Lower PassMark (75,809 vs 76,167).
Trade-offs
- ❌Worse for gaming: lower average FPS than EPYC 9255 across 4 shared CPU benchmark tests.
- ❌Smaller total L3 cache (96 MB vs 128 MB).
- ❌Lower PassMark per dollar, at 14.5 vs 30.4 PassMark/$ ($5,265 MSRP vs $2,495 MSRP).
- ❌25% higher power demand at 250W vs 200W.
Quick Answers
So, is EPYC 9255 better than Xeon 6740E?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Games Benchmarks
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.

Path of Exile 2
| Preset | EPYC 9255 | Xeon 6740E |
|---|---|---|
| 1080p | ||
| low | 303 FPS | 189 FPS |
| medium | 280 FPS | 152 FPS |
| high | 231 FPS | 121 FPS |
| ultra | 195 FPS | 95 FPS |
| 1440p | ||
| low | 268 FPS | 153 FPS |
| medium | 223 FPS | 119 FPS |
| high | 172 FPS | 91 FPS |
| ultra | 152 FPS | 73 FPS |
| 4K | ||
| low | 186 FPS | 71 FPS |
| medium | 154 FPS | 59 FPS |
| high | 117 FPS | 46 FPS |
| ultra | 105 FPS | 38 FPS |

Counter-Strike 2
| Preset | EPYC 9255 | Xeon 6740E |
|---|---|---|
| 1080p | ||
| low | 717 FPS | 437 FPS |
| medium | 614 FPS | 378 FPS |
| high | 485 FPS | 306 FPS |
| ultra | 421 FPS | 241 FPS |
| 1440p | ||
| low | 573 FPS | 359 FPS |
| medium | 507 FPS | 319 FPS |
| high | 419 FPS | 266 FPS |
| ultra | 341 FPS | 203 FPS |
| 4K | ||
| low | 335 FPS | 222 FPS |
| medium | 298 FPS | 201 FPS |
| high | 270 FPS | 168 FPS |
| ultra | 239 FPS | 135 FPS |

League of Legends
| Preset | EPYC 9255 | Xeon 6740E |
|---|---|---|
| 1080p | ||
| low | 850 FPS | 934 FPS |
| medium | 691 FPS | 831 FPS |
| high | 625 FPS | 779 FPS |
| ultra | 530 FPS | 693 FPS |
| 1440p | ||
| low | 677 FPS | 746 FPS |
| medium | 548 FPS | 655 FPS |
| high | 484 FPS | 614 FPS |
| ultra | 408 FPS | 546 FPS |
| 4K | ||
| low | 483 FPS | 479 FPS |
| medium | 399 FPS | 378 FPS |
| high | 355 FPS | 334 FPS |
| ultra | 293 FPS | 272 FPS |

Valorant
| Preset | EPYC 9255 | Xeon 6740E |
|---|---|---|
| 1080p | ||
| low | 1083 FPS | 918 FPS |
| medium | 982 FPS | 830 FPS |
| high | 862 FPS | 715 FPS |
| ultra | 777 FPS | 610 FPS |
| 1440p | ||
| low | 859 FPS | 710 FPS |
| medium | 761 FPS | 620 FPS |
| high | 668 FPS | 530 FPS |
| ultra | 582 FPS | 450 FPS |
| 4K | ||
| low | 627 FPS | 509 FPS |
| medium | 562 FPS | 455 FPS |
| high | 500 FPS | 400 FPS |
| ultra | 434 FPS | 344 FPS |
Technical Specifications
Side-by-side comparison of EPYC 9255 and Xeon 6740E

EPYC 9255
EPYC 9255
The EPYC 9255 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 24 cores and 48 threads. Base frequency is 3.25 GHz, with boost up to 4.8 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 200 Watt. Memory support: DDR5. Passmark benchmark score: 75,809 points. Launch price was $2,495.

Xeon 6740E
Xeon 6740E
The Xeon 6740E is manufactured by Intel. It was released in 3 June 2024 (1 year ago). It is based on the Sierra Forest (2024) architecture. It features 96 cores and 96 threads. Base frequency is 2.4 GHz, with boost up to 3.2 GHz. L3 cache: 96 MB (total). L2 cache: 4 MB (per module). Built on Intel 3 nm process technology. Socket: LGA4710. Thermal design power (TDP): 250 Watt. Memory support: DDR5-6400. Passmark benchmark score: 76,167 points. Launch price was $5,265.
Processing Power
The EPYC 9255 packs 24 cores / 48 threads, while the Xeon 6740E offers 96 cores / 96 threads — the Xeon 6740E has 72 more cores. Boost clocks reach 4.8 GHz on the EPYC 9255 versus 3.2 GHz on the Xeon 6740E — a 40% clock advantage for the EPYC 9255 (base: 3.25 GHz vs 2.4 GHz). The EPYC 9255 uses the Turin (2024) architecture (4 nm), while the Xeon 6740E uses Sierra Forest (2024) (Intel 3 nm). In PassMark, the EPYC 9255 scores 75,809 against the Xeon 6740E's 76,167 — a 0.5% lead for the Xeon 6740E. L3 cache: 128 MB (total) on the EPYC 9255 vs 96 MB (total) on the Xeon 6740E.
| Feature | EPYC 9255 | Xeon 6740E |
|---|---|---|
| Cores / Threads | 24 / 48 | 96 / 96+300% |
| Boost Clock | 4.8 GHz+50% | 3.2 GHz |
| Base Clock | 3.25 GHz+35% | 2.4 GHz |
| L3 Cache | 128 MB (total)+33% | 96 MB (total) |
| L2 Cache | 1 MB (per core) | 4 MB (per module)+300% |
| Process | 4 nm | Intel 3 nm-25% |
| Architecture | Turin (2024) | Sierra Forest (2024) |
| PassMark | 75,809 | 76,167 |
Memory & Platform
The EPYC 9255 uses the SP5 socket (PCIe 5.0), while the Xeon 6740E uses LGA4710 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the EPYC 9255 versus 6400 on the Xeon 6740E — the Xeon 6740E supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 9255 supports up to 6144 of RAM compared to 4096 — 40% more capacity for professional workloads. Memory channels: 12 (EPYC 9255) vs 8 (Xeon 6740E). PCIe lanes: 128 (EPYC 9255) vs 80 (Xeon 6740E) — the EPYC 9255 offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP5 (EPYC 9255) and C741 (Xeon 6740E).
| Feature | EPYC 9255 | Xeon 6740E |
|---|---|---|
| Socket | SP5 | LGA4710 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | 4800 | 6400+33% |
| Max RAM Capacity | 6144+50% | 4096 |
| RAM Channels | 12+50% | 8 |
| ECC Support | Yes | Yes |
| PCIe Lanes | 128+60% | 80 |
Advanced Features
Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, SEV-SNP (EPYC 9255) vs VT-x, VT-d, TDX (Xeon 6740E). Direct competitor: EPYC 9255 rivals Xeon Platinum 8480+; Xeon 6740E rivals EPYC 9005.
| Feature | EPYC 9255 | Xeon 6740E |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d, SEV-SNP | VT-x, VT-d, TDX |
Value Analysis
The EPYC 9255 launched at $2495 MSRP, while the Xeon 6740E debuted at $5265. On MSRP ($2495 vs $5265), the EPYC 9255 is $2770 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 9255 delivers 30.4 pts/$ vs 14.5 pts/$ for the Xeon 6740E — making the EPYC 9255 the 71% better value option.
| Feature | EPYC 9255 | Xeon 6740E |
|---|---|---|
| MSRP | $2495-53% | $5265 |
| Performance per Dollar | 30.4+110% | 14.5 |
| Release Date | 2024 | 2024 |
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