EPYC 7343 vs Ryzen 9 5900X
EPYC 7343
Ryzen 9 5900X
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 7343
Performance Per Dollar Ryzen 9 5900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 7343 | Ryzen 9 5900X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($1,350) | ✅ More affordable ($350) |
| Longevity | ✨ Modern (Milan (2021−2023) / 7 nm+) | ✨ Modern (Vermeer (Zen3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | EPYC 7343 | Ryzen 9 5900X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+244%) |
| Upfront Cost | ⚠️ Higher cost ($1,350) | ✅ More affordable ($350) |
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 7343 and Ryzen 9 5900X
EPYC 7343
The EPYC 7343 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 16 cores and 32 threads. Base frequency is 3.2 GHz, with boost up to 3.9 GHz. L3 cache: 128 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 190 Watt. Memory support: DDR4-3200. Passmark benchmark score: 43,644 points. Launch price was $1,565.
Ryzen 9 5900X
The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.
Processing Power
The EPYC 7343 packs 16 cores / 32 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the EPYC 7343 has 4 more cores. Boost clocks reach 3.9 GHz on the EPYC 7343 versus 4.8 GHz on the Ryzen 9 5900X — a 20.7% clock advantage for the Ryzen 9 5900X (base: 3.2 GHz vs 3.7 GHz). The EPYC 7343 uses the Milan (2021−2023) architecture (7 nm+), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the EPYC 7343 scores 43,644 against the Ryzen 9 5900X's 38,955 — a 11.4% lead for the EPYC 7343. L3 cache: 128 MB (total) on the EPYC 7343 vs 64 MB on the Ryzen 9 5900X.
| Feature | EPYC 7343 | Ryzen 9 5900X |
|---|---|---|
| Cores / Threads | 16 / 32+33% | 12 / 24 |
| Boost Clock | 3.9 GHz | 4.8 GHz+23% |
| Base Clock | 3.2 GHz | 3.7 GHz+16% |
| L3 Cache | 128 MB (total)+100% | 64 MB |
| L2 Cache | 512 kB (per core) | 512K (per core) |
| Process | 7 nm+ | 7 nm, 12 nm |
| Architecture | Milan (2021−2023) | Vermeer (Zen3) (2020−2022) |
| PassMark | 43,644+12% | 38,955 |
| Cinebench R23 Multi | — | 21,000 |
| Geekbench 6 Single | — | 2,174 |
| Geekbench 6 Multi | — | 11,888 |
Memory & Platform
The EPYC 7343 uses the SP3 socket (PCIe 4.0), while the Ryzen 9 5900X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7343 versus DDR4-3200 on the Ryzen 9 5900X — the EPYC 7343 supports 199.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7343 supports up to 4096 of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 8 (EPYC 7343) vs 2 (Ryzen 9 5900X). PCIe lanes: 128 (EPYC 7343) vs 24 (Ryzen 9 5900X) — the EPYC 7343 offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7343) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).
| Feature | EPYC 7343 | Ryzen 9 5900X |
|---|---|---|
| Socket | SP3 | AM4 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 3200+79900% | DDR4-3200 |
| Max RAM Capacity | 4096 | 128 GB+3276700% |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+433% | 24 |
Advanced Features
Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the EPYC 7343 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, AMD-V (EPYC 7343) vs AMD-V (Ryzen 9 5900X). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: EPYC 7343 rivals Xeon Gold 6248; Ryzen 9 5900X rivals Core i9-12900K.
| Feature | EPYC 7343 | Ryzen 9 5900X |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | Yes |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d, AMD-V | AMD-V |
| Target Use | — | Workstation |
Value Analysis
The EPYC 7343 launched at $1565 MSRP, while the Ryzen 9 5900X debuted at $549. At current prices ($1350 vs $350), the Ryzen 9 5900X is $1000 cheaper. In terms of value (PassMark points per dollar), the EPYC 7343 delivers 32.3 pts/$ vs 111.3 pts/$ for the Ryzen 9 5900X — making the Ryzen 9 5900X the 110% better value option.
| Feature | EPYC 7343 | Ryzen 9 5900X |
|---|---|---|
| MSRP | $1565 | $549-65% |
| Avg Price (30d) | $1350 | $350-74% |
| Performance per Dollar | 32.3 | 111.3+245% |
| Release Date | 2021 | 2020 |
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