EPYC 7663 vs Ryzen 7 5800X
EPYC 7663
Popular choices:
Ryzen 7 5800X
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 7663
Performance Per Dollar Ryzen 7 5800X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 7663 | Ryzen 7 5800X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($6,366) | ✅ More affordable ($180) |
| Longevity | ✨ Modern (Milan (2021−2023) / 7 nm+) | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | EPYC 7663 | Ryzen 7 5800X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+1093%) |
| Upfront Cost | ⚠️ Higher cost ($6,366) | ✅ More affordable ($180) |
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 7663 and Ryzen 7 5800X
EPYC 7663
The EPYC 7663 is manufactured by AMD. It was released in 15 March 2021 (4 years ago). It is based on the Milan (2021−2023) architecture. It features 56 cores and 112 threads. Base frequency is 2 GHz, with boost up to 3.5 GHz. L3 cache: 256 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 240 Watt. Memory support: DDR4-3200. Passmark benchmark score: 82,120 points. Launch price was $6,366.
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.
Processing Power
The EPYC 7663 packs 56 cores / 112 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the EPYC 7663 has 48 more cores. Boost clocks reach 3.5 GHz on the EPYC 7663 versus 4.7 GHz on the Ryzen 7 5800X — a 29.3% clock advantage for the Ryzen 7 5800X (base: 2 GHz vs 3.8 GHz). The EPYC 7663 uses the Milan (2021−2023) architecture (7 nm+), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the EPYC 7663 scores 82,120 against the Ryzen 7 5800X's 27,712 — a 99.1% lead for the EPYC 7663. L3 cache: 256 MB (total) on the EPYC 7663 vs 32 MB on the Ryzen 7 5800X.
| Feature | EPYC 7663 | Ryzen 7 5800X |
|---|---|---|
| Cores / Threads | 56 / 112+600% | 8 / 16 |
| Boost Clock | 3.5 GHz | 4.7 GHz+34% |
| Base Clock | 2 GHz | 3.8 GHz+90% |
| L3 Cache | 256 MB (total)+700% | 32 MB |
| L2 Cache | 512 kB (per core) | 512K (per core) |
| Process | 7 nm+ | 7 nm, 12 nm |
| Architecture | Milan (2021−2023) | Vermeer (Zen 3) (2020−2022) |
| PassMark | 82,120+196% | 27,712 |
| Geekbench 6 Single | 1,370 | — |
| Geekbench 6 Multi | 12,380 | — |
Memory & Platform
The EPYC 7663 uses the SP3 socket (PCIe 4.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. The EPYC 7663 supports up to 4096 GB of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 8 (EPYC 7663) vs 2 (Ryzen 7 5800X). PCIe lanes: 128 (EPYC 7663) vs 24 (Ryzen 7 5800X) — the EPYC 7663 offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7663) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X).
| Feature | EPYC 7663 | Ryzen 7 5800X |
|---|---|---|
| Socket | SP3 | AM4 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | DDR4-3200 |
| Max RAM Capacity | 4096 GB+3100% | 128 GB |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+433% | 24 |
Advanced Features
Only the Ryzen 7 5800X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AMD-V virtualization. Primary use case: EPYC 7663 targets Server, Ryzen 7 5800X targets Desktop. Direct competitor: EPYC 7663 rivals Xeon Platinum 8380.
| Feature | EPYC 7663 | Ryzen 7 5800X |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | AMD-V | AMD-V |
| Target Use | Server | Desktop |
Value Analysis
The EPYC 7663 launched at $6366 MSRP, while the Ryzen 7 5800X debuted at $449. At current prices ($6366 vs $180), the Ryzen 7 5800X is $6186 cheaper. In terms of value (PassMark points per dollar), the EPYC 7663 delivers 12.9 pts/$ vs 154.0 pts/$ for the Ryzen 7 5800X — making the Ryzen 7 5800X the 169.1% better value option.
| Feature | EPYC 7663 | Ryzen 7 5800X |
|---|---|---|
| MSRP | $6366 | $449-93% |
| Avg Price (30d) | $6366 | $180-97% |
| Performance per Dollar | 12.9 | 154.0+1094% |
| Release Date | 2021 | 2020 |
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