Core i9-10920X vs EPYC 7551
Core i9-10920X
EPYC 7551
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 Core i9-10920X
Performance Per Dollar EPYC 7551
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-10920X | EPYC 7551 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($430) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Cascade Lake-X (2019) / 14 nm) | ✨ Modern (Naples (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Core i9-10920X | EPYC 7551 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($430) | ✅ More affordable ($0) |
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 Core i9-10920X and EPYC 7551
Core i9-10920X
The Core i9-10920X is manufactured by Intel. It was released in 19 October 2019 (6 years ago). It is based on the Cascade Lake-X (2019) architecture. It features 12 cores and 24 threads. Base frequency is 3.5 GHz, with boost up to 4.8 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2933. Passmark benchmark score: 25,875 points. Launch price was $299.
EPYC 7551
The EPYC 7551 is manufactured by AMD. It was released in 29 June 2017 (8 years ago). It is based on the Naples (2017−2018) architecture. It features 32 cores and 64 threads. Base frequency is 2 GHz, with boost up to 3 GHz. L3 cache: 64 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 180 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 25,844 points. Launch price was $3,400.
Processing Power
The Core i9-10920X packs 12 cores / 24 threads, while the EPYC 7551 offers 32 cores / 64 threads — the EPYC 7551 has 20 more cores. Boost clocks reach 4.8 GHz on the Core i9-10920X versus 3 GHz on the EPYC 7551 — a 46.2% clock advantage for the Core i9-10920X (base: 3.5 GHz vs 2 GHz). The Core i9-10920X uses the Cascade Lake-X (2019) architecture (14 nm), while the EPYC 7551 uses Naples (2017−2018) (14 nm). In PassMark, the Core i9-10920X scores 25,875 against the EPYC 7551's 25,844 — a 0.1% lead for the Core i9-10920X. L3 cache: 19.25 MB (total) on the Core i9-10920X vs 64 MB (total) on the EPYC 7551.
| Feature | Core i9-10920X | EPYC 7551 |
|---|---|---|
| Cores / Threads | 12 / 24 | 32 / 64+167% |
| Boost Clock | 4.8 GHz+60% | 3 GHz |
| Base Clock | 3.5 GHz+75% | 2 GHz |
| L3 Cache | 19.25 MB (total) | 64 MB (total)+232% |
| L2 Cache | 1 MB (per core)+100% | 512K (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Cascade Lake-X (2019) | Naples (2017−2018) |
| PassMark | 25,875 | 25,844 |
| Cinebench R23 Multi | 15,458 | — |
| Geekbench 6 Single | 1,250 | — |
| Geekbench 6 Multi | 12,000 | — |
Memory & Platform
The Core i9-10920X uses the LGA2066 socket (PCIe 3.0), while the EPYC 7551 uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Core i9-10920X | EPYC 7551 |
|---|---|---|
| Socket | LGA2066 | TR4 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | DDR4-2933 | — |
| Max RAM Capacity | 256 GB | — |
| RAM Channels | 4 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 44 | — |
Advanced Features
Virtualization: VT-x, VT-d, EPT (Core i9-10920X) / not specified (EPYC 7551). Primary use case: Core i9-10920X targets HEDT/Workstation.
| Feature | Core i9-10920X | EPYC 7551 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | Yes | — |
| AVX-512 | Yes | — |
| Virtualization | VT-x, VT-d, EPT | — |
| Target Use | HEDT/Workstation | — |
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