Core i7-9800X vs EPYC 4124P
Core i7-9800X
EPYC 4124P
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 i7-9800X
Performance Per Dollar EPYC 4124P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-9800X | EPYC 4124P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($210) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) | ✨ Modern (Raphael (2023−2025) / 5 nm) |
💎 Value Proposition
| Insight | Core i7-9800X | EPYC 4124P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($210) | ✅ 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 i7-9800X and EPYC 4124P
Core i7-9800X
The Core i7-9800X is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.5 GHz. L3 cache: 16.5 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 18,128 points. Launch price was $589.
EPYC 4124P
The EPYC 4124P is manufactured by AMD. It was released in 21 May 2024 (1 year ago). It is based on the Raphael (2023−2025) architecture. It features 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 5.1 GHz. L3 cache: 32 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 18,139 points. Launch price was $149.
Processing Power
The Core i7-9800X packs 8 cores / 16 threads, while the EPYC 4124P offers 4 cores / 8 threads — the Core i7-9800X has 4 more cores. Boost clocks reach 4.5 GHz on the Core i7-9800X versus 5.1 GHz on the EPYC 4124P — a 12.5% clock advantage for the EPYC 4124P (base: 3.8 GHz vs 3.8 GHz). The Core i7-9800X uses the Skylake (server) (2017−2018) architecture (14 nm), while the EPYC 4124P uses Raphael (2023−2025) (5 nm). In PassMark, the Core i7-9800X scores 18,128 against the EPYC 4124P's 18,139 — a 0.1% lead for the EPYC 4124P. Cinebench R23 multi-core: 13,067 vs 10,500 (21.8% advantage for the Core i7-9800X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,372 vs 1,962, a 35.4% lead for the EPYC 4124P that directly translates to higher frame rates. Multi-core Geekbench: 7,552 vs 1,898 (119.7% advantage for the Core i7-9800X). L3 cache: 16.5 MB (total) on the Core i7-9800X vs 32 MB (total) on the EPYC 4124P.
| Feature | Core i7-9800X | EPYC 4124P |
|---|---|---|
| Cores / Threads | 8 / 16+100% | 4 / 8 |
| Boost Clock | 4.5 GHz | 5.1 GHz+13% |
| Base Clock | 3.8 GHz | 3.8 GHz |
| L3 Cache | 16.5 MB (total) | 32 MB (total)+94% |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 14 nm | 5 nm-64% |
| Architecture | Skylake (server) (2017−2018) | Raphael (2023−2025) |
| PassMark | 18,128 | 18,139 |
| Cinebench R23 Multi | 13,067+24% | 10,500 |
| Geekbench 6 Single | 1,372 | 1,962+43% |
| Geekbench 6 Multi | 7,552+298% | 1,898 |
Memory & Platform
The Core i7-9800X uses the LGA2066 socket (PCIe 3.0), while the EPYC 4124P uses AM5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i7-9800X versus DDR5-5200 on the EPYC 4124P — the EPYC 4124P supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 4124P supports up to 192 GB of RAM compared to 128 GB — 40% more capacity for professional workloads. Memory channels: 4 (Core i7-9800X) vs 2 (EPYC 4124P). PCIe lanes: 44 (Core i7-9800X) vs 28 (EPYC 4124P) — the Core i7-9800X offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X299 (Core i7-9800X) and B650,X670,X870 (EPYC 4124P).
| Feature | Core i7-9800X | EPYC 4124P |
|---|---|---|
| Socket | LGA2066 | AM5 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | DDR4-2666 | DDR5-5200+25% |
| Max RAM Capacity | 128 GB | 192 GB+50% |
| RAM Channels | 4+100% | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 44+57% | 28 |
Advanced Features
Only the Core i7-9800X 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 (Core i7-9800X) vs AMD-V, AMD-Vi (EPYC 4124P). The EPYC 4124P includes integrated graphics (Radeon Graphics), while the Core i7-9800X requires a dedicated GPU. Primary use case: Core i7-9800X targets Workstation, EPYC 4124P targets Entry Server. Direct competitor: Core i7-9800X rivals Ryzen 5 3600XT; EPYC 4124P rivals Core i5-10500T.
| Feature | Core i7-9800X | EPYC 4124P |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Radeon Graphics |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | AMD-V, AMD-Vi |
| Target Use | Workstation | Entry Server |
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