CPU
GPU
EPYC 4565P
Xeon 6521P
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 EPYC 4565P
Performance Per Dollar Xeon 6521P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 4565P | Xeon 6521P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($1,980) | ✅ More affordable ($1,250) |
| Longevity | ✨ Modern (Grado (2025) / 4 nm) | ✨ Modern (Granite Rapids (2024−2025) / Intel 3 nm) |
💎 Value Proposition
| Insight | EPYC 4565P | Xeon 6521P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+60%) |
| Upfront Cost | ⚠️ Higher cost ($1,980) | ✅ More affordable ($1,250) |
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 EPYC 4565P and Xeon 6521P
EPYC 4565P
The EPYC 4565P is manufactured by AMD. It was released in 13 May 2025 (less than a year ago). It is based on the Grado (2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.3 GHz, with boost up to 5.7 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 170 Watt. Memory support: DDR5. Passmark benchmark score: 64,068 points. Launch price was $589.
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.
Processing Power
The EPYC 4565P packs 16 cores / 32 threads, while the Xeon 6521P offers 24 cores / 48 threads — the Xeon 6521P has 8 more cores. Boost clocks reach 5.7 GHz on the EPYC 4565P versus 4.1 GHz on the Xeon 6521P — a 32.7% clock advantage for the EPYC 4565P (base: 4.3 GHz vs 2.6 GHz). The EPYC 4565P uses the Grado (2025) architecture (4 nm), while the Xeon 6521P uses Granite Rapids (2024−2025) (Intel 3 nm). In PassMark, the EPYC 4565P scores 64,068 against the Xeon 6521P's 64,761 — a 1.1% lead for the Xeon 6521P. L3 cache: 64 MB (total) on the EPYC 4565P vs 144 MB (total) on the Xeon 6521P.
| Feature | EPYC 4565P | Xeon 6521P |
|---|---|---|
| Cores / Threads | 16 / 32 | 24 / 48+50% |
| Boost Clock | 5.7 GHz+39% | 4.1 GHz |
| Base Clock | 4.3 GHz+65% | 2.6 GHz |
| L3 Cache | 64 MB (total) | 144 MB (total)+125% |
| L2 Cache | 1 MB (per core) | 2 MB (per core)+100% |
| Process | 4 nm | Intel 3 nm-25% |
| Architecture | Grado (2025) | Granite Rapids (2024−2025) |
| PassMark | 64,068 | 64,761+1% |
Memory & Platform
The EPYC 4565P uses the AM5 socket (PCIe 4.0), while the Xeon 6521P uses LGA4710 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5600 on the EPYC 4565P versus 6400 on the Xeon 6521P — the Xeon 6521P supports 13.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon 6521P supports up to 4096 of RAM compared to 192 — 182.1% more capacity for professional workloads. Memory channels: 2 (EPYC 4565P) vs 8 (Xeon 6521P). PCIe lanes: 28 (EPYC 4565P) vs 136 (Xeon 6521P) — the Xeon 6521P offers 108 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM5 (EPYC 4565P) and C741 (Xeon 6521P).
| Feature | EPYC 4565P | Xeon 6521P |
|---|---|---|
| Socket | AM5 | LGA4710 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 5600 | 6400+14% |
| Max RAM Capacity | 192 | 4096+2033% |
| RAM Channels | 2 | 8+300% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28 | 136+386% |
Advanced Features
Only the EPYC 4565P has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, AMD-V (EPYC 4565P) vs VT-x, VT-d (Xeon 6521P). The EPYC 4565P includes integrated graphics (AMD Radeon Graphics), while the Xeon 6521P requires a dedicated GPU. Direct competitor: EPYC 4565P rivals Core Ultra 9 285K; Xeon 6521P rivals EPYC 9354.
| Feature | EPYC 4565P | Xeon 6521P |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | AMD Radeon Graphics | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d, AMD-V | VT-x, VT-d |
Value Analysis
The EPYC 4565P launched at $2730 MSRP, while the Xeon 6521P debuted at $1250. At current prices ($1980 vs $1250), the Xeon 6521P is $730 cheaper. In terms of value (PassMark points per dollar), the EPYC 4565P delivers 32.4 pts/$ vs 51.8 pts/$ for the Xeon 6521P — making the Xeon 6521P the 46.2% better value option.
| Feature | EPYC 4565P | Xeon 6521P |
|---|---|---|
| MSRP | $2730 | $1250-54% |
| Avg Price (30d) | $1980 | $1250-37% |
| Performance per Dollar | 32.4 | 51.8+60% |
| Release Date | 2025 | 2025 |
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