Ryzen 9 PRO 7945 vs EPYC 7453
Ryzen 9 PRO 7945
EPYC 7453
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 Ryzen 9 PRO 7945
Performance Per Dollar EPYC 7453
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 PRO 7945 | EPYC 7453 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($450) | ⚠️ Higher cost ($1,253) |
| Longevity | ✨ Modern (Raphael (2023−2025) / 5 nm) | ✨ Modern (Milan (2021−2023) / 7 nm+) |
💎 Value Proposition
| Insight | Ryzen 9 PRO 7945 | EPYC 7453 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+169%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($450) | ⚠️ Higher cost ($1,253) |
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 Ryzen 9 PRO 7945 and EPYC 7453
Ryzen 9 PRO 7945
The Ryzen 9 PRO 7945 is manufactured by AMD. It was released in 13 June 2023 (2 years ago). It is based on the Raphael (2023−2025) 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. Passmark benchmark score: 46,828 points. Launch price was $499.
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.
Processing Power
The Ryzen 9 PRO 7945 packs 12 cores / 24 threads, while the EPYC 7453 offers 28 cores / 56 threads — the EPYC 7453 has 16 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 PRO 7945 versus 3.45 GHz on the EPYC 7453 — a 44.1% clock advantage for the Ryzen 9 PRO 7945 (base: 3.7 GHz vs 2.75 GHz). The Ryzen 9 PRO 7945 uses the Raphael (2023−2025) architecture (5 nm), while the EPYC 7453 uses Milan (2021−2023) (7 nm+). In PassMark, the Ryzen 9 PRO 7945 scores 46,828 against the EPYC 7453's 48,453 — a 3.4% lead for the EPYC 7453. Both processors carry 64 MB (total) of L3 cache.
| Feature | Ryzen 9 PRO 7945 | EPYC 7453 |
|---|---|---|
| Cores / Threads | 12 / 24 | 28 / 56+133% |
| Boost Clock | 5.4 GHz+57% | 3.45 GHz |
| Base Clock | 3.7 GHz+35% | 2.75 GHz |
| L3 Cache | 64 MB (total) | 64 MB (total) |
| L2 Cache | 1 MB (per core)+100% | 512 kB (per core) |
| Process | 5 nm-29% | 7 nm+ |
| Architecture | Raphael (2023−2025) | Milan (2021−2023) |
| PassMark | 46,828 | 48,453+3% |
| Cinebench R23 Multi | 28,905 | — |
| Geekbench 6 Single | 2,206 | — |
| Geekbench 6 Multi | 16,832 | — |
Memory & Platform
The Ryzen 9 PRO 7945 uses the AM5 socket (PCIe 5.0), while the EPYC 7453 uses SP3 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 9 PRO 7945 versus 3200 on the EPYC 7453 — 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: 2 (Ryzen 9 PRO 7945) vs 8 (EPYC 7453). PCIe lanes: 28 (Ryzen 9 PRO 7945) vs 128 (EPYC 7453) — the EPYC 7453 offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD X670E,AMD X670,AMD B650E,AMD B650,AMD A620 (Ryzen 9 PRO 7945) and SP3,C621A (EPYC 7453).
| Feature | Ryzen 9 PRO 7945 | EPYC 7453 |
|---|---|---|
| Socket | AM5 | SP3 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-5200 | 3200+63900% |
| Max RAM Capacity | 128 GB+3276700% | 4096 |
| RAM Channels | 2 | 8+300% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28 | 128+357% |
Advanced Features
Only the Ryzen 9 PRO 7945 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: true (Ryzen 9 PRO 7945) vs VT-x, VT-d (EPYC 7453). The Ryzen 9 PRO 7945 includes integrated graphics (Radeon Graphics), while the EPYC 7453 requires a dedicated GPU. Direct competitor: Ryzen 9 PRO 7945 rivals Core i9-13900; EPYC 7453 rivals Xeon Platinum 8362.
| Feature | Ryzen 9 PRO 7945 | EPYC 7453 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon Graphics | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | true | VT-x, VT-d |
Value Analysis
The Ryzen 9 PRO 7945 launched at $409 MSRP, while the EPYC 7453 debuted at $1570. At current prices ($450 vs $1253), the Ryzen 9 PRO 7945 is $803 cheaper. In terms of value (PassMark points per dollar), the Ryzen 9 PRO 7945 delivers 104.1 pts/$ vs 38.7 pts/$ for the EPYC 7453 — making the Ryzen 9 PRO 7945 the 91.6% better value option.
| Feature | Ryzen 9 PRO 7945 | EPYC 7453 |
|---|---|---|
| MSRP | $409-74% | $1570 |
| Avg Price (30d) | $450-64% | $1253 |
| Performance per Dollar | 104.1+169% | 38.7 |
| Release Date | 2023 | 2021 |
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