Xeon 6521P vs EPYC 9254
Xeon 6521P
EPYC 9254
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon 6521P
Performance Per Dollar EPYC 9254
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon 6521P | EPYC 9254 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($1,250) | ✅ More affordable ($1,099) |
| Longevity | ✨ Modern (Granite Rapids (2024−2025) / Intel 3 nm) | ✨ Modern (Genoa (2022−2023) / 5 nm, 6 nm) |
💎 Value Proposition
| Insight | Xeon 6521P | EPYC 9254 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+13%) |
| Upfront Cost | ⚠️ Higher cost ($1,250) | ✅ More affordable ($1,099) |
Performance Check
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.
Technical Specifications
Side-by-side comparison of Xeon 6521P and EPYC 9254
Xeon 6521P
The Xeon 6521P is manufactured by Intel. It was released in 24 February 2025 (less than a year ago). It is based on the Granite Rapids (2024−2025) architecture. It features 24 cores and 48 threads. Base frequency is 2.6 GHz, with boost up to 4.1 GHz. L3 cache: 144 MB (total). L2 cache: 2 MB (per core). Built on Intel 3 nm process technology. Socket: LGA4710. Thermal design power (TDP): 225 Watt. Memory support: DDR5(6400MT/s). Passmark benchmark score: 64,761 points. Launch price was $1,250.
EPYC 9254
The EPYC 9254 is manufactured by AMD. It was released in 10 November 2022 (3 years ago). It is based on the Genoa (2022−2023) architecture. It features 24 cores and 48 threads. Base frequency is 2.9 GHz, with boost up to 4.15 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: SP5. Thermal design power (TDP): 200 Watt. Memory support: DDR5-4800. Passmark benchmark score: 64,344 points. Launch price was $2,299.
Processing Power
Both the Xeon 6521P and EPYC 9254 share an identical 24-core/48-thread configuration. Boost clocks reach 4.1 GHz on the Xeon 6521P versus 4.15 GHz on the EPYC 9254 — a 1.2% clock advantage for the EPYC 9254 (base: 2.6 GHz vs 2.9 GHz). The Xeon 6521P uses the Granite Rapids (2024−2025) architecture (Intel 3 nm), while the EPYC 9254 uses Genoa (2022−2023) (5 nm, 6 nm). In PassMark, the Xeon 6521P scores 64,761 against the EPYC 9254's 64,344 — a 0.6% lead for the Xeon 6521P. L3 cache: 144 MB (total) on the Xeon 6521P vs 128 MB (total) on the EPYC 9254.
| Feature | Xeon 6521P | EPYC 9254 |
|---|---|---|
| Cores / Threads | 24 / 48 | 24 / 48 |
| Boost Clock | 4.1 GHz | 4.15 GHz+1% |
| Base Clock | 2.6 GHz | 2.9 GHz+12% |
| L3 Cache | 144 MB (total)+13% | 128 MB (total) |
| L2 Cache | 2 MB (per core)+100% | 1 MB (per core) |
| Process | Intel 3 nm-40% | 5 nm, 6 nm |
| Architecture | Granite Rapids (2024−2025) | Genoa (2022−2023) |
| PassMark | 64,761 | 64,344 |
| Geekbench 6 Single | — | 2,233 |
| Geekbench 6 Multi | — | 18,023 |
Memory & Platform
The Xeon 6521P uses the LGA4710 socket (PCIe 5.0), while the EPYC 9254 uses SP5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 6400 on the Xeon 6521P versus DDR5-4800 on the EPYC 9254 — the Xeon 6521P supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 9254 supports up to 6144 GB of RAM compared to 4096 — 40% more capacity for professional workloads. Memory channels: 8 (Xeon 6521P) vs 12 (EPYC 9254). PCIe lanes: 136 (Xeon 6521P) vs 128 (EPYC 9254) — the Xeon 6521P offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon 6521P) and SP5 (EPYC 9254).
| Feature | Xeon 6521P | EPYC 9254 |
|---|---|---|
| Socket | LGA4710 | SP5 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | 6400+127900% | DDR5-4800 |
| Max RAM Capacity | 4096 | 6144 GB+157286300% |
| RAM Channels | 8 | 12+50% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 136+6% | 128 |
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 (Xeon 6521P) vs AMD-V (EPYC 9254). Primary use case: EPYC 9254 targets Enterprise Server. Direct competitor: Xeon 6521P rivals EPYC 9354; EPYC 9254 rivals Xeon Platinum 8468.
| Feature | Xeon 6521P | EPYC 9254 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | AMD-V |
| Target Use | — | Enterprise Server |
Value Analysis
The Xeon 6521P launched at $1250 MSRP, while the EPYC 9254 debuted at $3761. At current prices ($1250 vs $1099), the EPYC 9254 is $151 cheaper. In terms of value (PassMark points per dollar), the Xeon 6521P delivers 51.8 pts/$ vs 58.5 pts/$ for the EPYC 9254 — making the EPYC 9254 the 12.2% better value option.
| Feature | Xeon 6521P | EPYC 9254 |
|---|---|---|
| MSRP | $1250-67% | $3761 |
| Avg Price (30d) | $1250 | $1099-12% |
| Performance per Dollar | 51.8 | 58.5+13% |
| Release Date | 2025 | 2022 |
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