EPYC 4345P vs EPYC 8124P
EPYC 4345P
EPYC 8124P
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 4345P
Performance Per Dollar EPYC 8124P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 4345P | EPYC 8124P |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($329) | ⚠️ Higher cost ($639) |
| Longevity | ✨ Modern (Grado (2025) / 4 nm) | ✨ Modern (Siena (2023−2024) / 5 nm) |
💎 Value Proposition
| Insight | EPYC 4345P | EPYC 8124P |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+94%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($329) | ⚠️ Higher cost ($639) |
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 4345P and EPYC 8124P
EPYC 4345P
The EPYC 4345P 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 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.5 GHz. L3 cache: 32 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 36,006 points. Launch price was $329.
EPYC 8124P
The EPYC 8124P is manufactured by AMD. It was released in 18 September 2023 (2 years ago). It is based on the Siena (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.45 GHz, with boost up to 3 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: SP6. Thermal design power (TDP): 125 Watt. Memory support: DDR5. Passmark benchmark score: 36,079 points. Launch price was $639.
Processing Power
The EPYC 4345P packs 8 cores / 16 threads, while the EPYC 8124P offers 16 cores / 32 threads — the EPYC 8124P has 8 more cores. Boost clocks reach 5.5 GHz on the EPYC 4345P versus 3 GHz on the EPYC 8124P — a 58.8% clock advantage for the EPYC 4345P (base: 3.8 GHz vs 2.45 GHz). The EPYC 4345P uses the Grado (2025) architecture (4 nm), while the EPYC 8124P uses Siena (2023−2024) (5 nm). In PassMark, the EPYC 4345P scores 36,006 against the EPYC 8124P's 36,079 — a 0.2% lead for the EPYC 8124P. L3 cache: 32 MB (total) on the EPYC 4345P vs 64 MB (total) on the EPYC 8124P.
| Feature | EPYC 4345P | EPYC 8124P |
|---|---|---|
| Cores / Threads | 8 / 16 | 16 / 32+100% |
| Boost Clock | 5.5 GHz+83% | 3 GHz |
| Base Clock | 3.8 GHz+55% | 2.45 GHz |
| L3 Cache | 32 MB (total) | 64 MB (total)+100% |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 4 nm-20% | 5 nm |
| Architecture | Grado (2025) | Siena (2023−2024) |
| PassMark | 36,006 | 36,079 |
Memory & Platform
The EPYC 4345P uses the AM5 socket (PCIe 4.0), while the EPYC 8124P uses SP6 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5600 on the EPYC 4345P versus 4800 on the EPYC 8124P — the EPYC 4345P supports 15.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 8124P supports up to 2048 of RAM compared to 128 — 176.5% more capacity for professional workloads. Memory channels: 2 (EPYC 4345P) vs 6 (EPYC 8124P). PCIe lanes: 28 (EPYC 4345P) vs 96 (EPYC 8124P) — the EPYC 8124P offers 68 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM5 (EPYC 4345P) and SP6 (EPYC 8124P).
| Feature | EPYC 4345P | EPYC 8124P |
|---|---|---|
| Socket | AM5 | SP6 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 5600+17% | 4800 |
| Max RAM Capacity | 128 | 2048+1500% |
| RAM Channels | 2 | 6+200% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28 | 96+243% |
Advanced Features
Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Both support AMD-V, IOMMU virtualization. The EPYC 4345P includes integrated graphics (AMD Radeon Graphics), while the EPYC 8124P requires a dedicated GPU. Direct competitor: EPYC 4345P rivals Xeon E-2488; EPYC 8124P rivals Xeon Gold 6426Y.
| Feature | EPYC 4345P | EPYC 8124P |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | AMD Radeon Graphics | None |
| Unlocked | No | No |
| AVX-512 | Yes | Yes |
| Virtualization | AMD-V, IOMMU | AMD-V, IOMMU |
Value Analysis
The EPYC 4345P launched at $329 MSRP, while the EPYC 8124P debuted at $639. At current prices ($329 vs $639), the EPYC 4345P is $310 cheaper. In terms of value (PassMark points per dollar), the EPYC 4345P delivers 109.4 pts/$ vs 56.5 pts/$ for the EPYC 8124P — making the EPYC 4345P the 63.9% better value option.
| Feature | EPYC 4345P | EPYC 8124P |
|---|---|---|
| MSRP | $329-49% | $639 |
| Avg Price (30d) | $329-49% | $639 |
| Performance per Dollar | 109.4+94% | 56.5 |
| Release Date | 2025 | 2023 |
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