EPYC 7453 vs Ryzen 9 7900
EPYC 7453
Ryzen 9 7900
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 7453
Performance Per Dollar Ryzen 9 7900
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 7453 | Ryzen 9 7900 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($1,253) | ✅ More affordable ($370) |
| Longevity | ✨ Modern (Milan (2021−2023) / 7 nm+) | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm) |
💎 Value Proposition
| Insight | EPYC 7453 | Ryzen 9 7900 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+237%) |
| Upfront Cost | ⚠️ Higher cost ($1,253) | ✅ More affordable ($370) |
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 7453 and Ryzen 9 7900
EPYC 7453
The EPYC 7453 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 28 cores and 56 threads. Base frequency is 2.75 GHz, with boost up to 3.45 GHz. L3 cache: 64 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 225 Watt. Memory support: DDR4-3200. Passmark benchmark score: 48,453 points. Launch price was $1,570.
Ryzen 9 7900
The Ryzen 9 7900 is manufactured by AMD. It was released in 14 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5-5200. Passmark benchmark score: 48,168 points. Launch price was $429.
Processing Power
The EPYC 7453 packs 28 cores / 56 threads, while the Ryzen 9 7900 offers 12 cores / 24 threads — the EPYC 7453 has 16 more cores. Boost clocks reach 3.45 GHz on the EPYC 7453 versus 5.4 GHz on the Ryzen 9 7900 — a 44.1% clock advantage for the Ryzen 9 7900 (base: 2.75 GHz vs 3.7 GHz). The EPYC 7453 uses the Milan (2021−2023) architecture (7 nm+), while the Ryzen 9 7900 uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the EPYC 7453 scores 48,453 against the Ryzen 9 7900's 48,168 — a 0.6% lead for the EPYC 7453. Both processors carry 64 MB (total) of L3 cache.
| Feature | EPYC 7453 | Ryzen 9 7900 |
|---|---|---|
| Cores / Threads | 28 / 56+133% | 12 / 24 |
| Boost Clock | 3.45 GHz | 5.4 GHz+57% |
| Base Clock | 2.75 GHz | 3.7 GHz+35% |
| L3 Cache | 64 MB (total) | 64 MB (total) |
| L2 Cache | 512 kB (per core) | 1 MB (per core)+100% |
| Process | 7 nm+ | 5 nm-29% |
| Architecture | Milan (2021−2023) | Raphael (Zen4) (2022−2023) |
| PassMark | 48,453 | 48,168 |
| Cinebench R23 Multi | — | 24,600 |
| Geekbench 6 Single | — | 2,800 |
| Geekbench 6 Multi | — | 18,000 |
Memory & Platform
The EPYC 7453 uses the SP3 socket (PCIe 4.0), while the Ryzen 9 7900 uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7453 versus DDR5-5200 on the Ryzen 9 7900 — the EPYC 7453 supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7453 supports up to 4096 of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 8 (EPYC 7453) vs 2 (Ryzen 9 7900). PCIe lanes: 128 (EPYC 7453) vs 28 (Ryzen 9 7900) — the EPYC 7453 offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3,C621A (EPYC 7453) and AMD X670E,AMD X670,AMD B650E,AMD B650,AMD A620 (Ryzen 9 7900).
| Feature | EPYC 7453 | Ryzen 9 7900 |
|---|---|---|
| Socket | SP3 | AM5 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 3200+63900% | DDR5-5200 |
| Max RAM Capacity | 4096 | 128 GB+3276700% |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+357% | 28 |
Advanced Features
Only the Ryzen 9 7900 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 (EPYC 7453) vs true (Ryzen 9 7900). The Ryzen 9 7900 includes integrated graphics (Radeon Graphics (Raphael)), while the EPYC 7453 requires a dedicated GPU. Direct competitor: EPYC 7453 rivals Xeon Platinum 8362; Ryzen 9 7900 rivals Core i9-13900.
| Feature | EPYC 7453 | Ryzen 9 7900 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | Radeon Graphics (Raphael) |
| Unlocked | No | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | true |
Value Analysis
The EPYC 7453 launched at $1570 MSRP, while the Ryzen 9 7900 debuted at $429. At current prices ($1253 vs $370), the Ryzen 9 7900 is $883 cheaper. In terms of value (PassMark points per dollar), the EPYC 7453 delivers 38.7 pts/$ vs 130.2 pts/$ for the Ryzen 9 7900 — making the Ryzen 9 7900 the 108.4% better value option.
| Feature | EPYC 7453 | Ryzen 9 7900 |
|---|---|---|
| MSRP | $1570 | $429-73% |
| Avg Price (30d) | $1253 | $370-70% |
| Performance per Dollar | 38.7 | 130.2+236% |
| Release Date | 2021 | 2023 |
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