EPYC 9555P vs EPYC 9845
EPYC 9555P
EPYC 9845
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 9555P
Performance Per Dollar EPYC 9845
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 9555P | EPYC 9845 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($6,130) | ⚠️ Higher cost ($8,670) |
| Longevity | ✨ Modern (Turin (2024) / 4 nm) | ✨ Modern (Turin (2024) / 3 nm) |
💎 Value Proposition
| Insight | EPYC 9555P | EPYC 9845 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+25%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($6,130) | ⚠️ Higher cost ($8,670) |
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 9555P and EPYC 9845
EPYC 9555P
The EPYC 9555P is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 64 cores and 128 threads. Base frequency is 3.2 GHz, with boost up to 4.4 GHz. L3 cache: 256 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 360 Watt. Memory support: DDR5. Passmark benchmark score: 135,441 points. Launch price was $7,983.
EPYC 9845
The EPYC 9845 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 160 cores and 320 threads. Base frequency is 2.1 GHz, with boost up to 3.7 GHz. L3 cache: 320 MB (total). L2 cache: 1 MB (per core). Built on 3 nm process technology. Socket: SP5. Thermal design power (TDP): 390 Watt. Memory support: DDR5. Passmark benchmark score: 152,985 points. Launch price was $13,564.
Processing Power
The EPYC 9555P packs 64 cores / 128 threads, while the EPYC 9845 offers 160 cores / 320 threads — the EPYC 9845 has 96 more cores. Boost clocks reach 4.4 GHz on the EPYC 9555P versus 3.7 GHz on the EPYC 9845 — a 17.3% clock advantage for the EPYC 9555P (base: 3.2 GHz vs 2.1 GHz). Both are built on the Turin (2024) architecture using a 4 nm process. In PassMark, the EPYC 9555P scores 135,441 against the EPYC 9845's 152,985 — a 12.2% lead for the EPYC 9845. L3 cache: 256 MB (total) on the EPYC 9555P vs 320 MB (total) on the EPYC 9845.
| Feature | EPYC 9555P | EPYC 9845 |
|---|---|---|
| Cores / Threads | 64 / 128 | 160 / 320+150% |
| Boost Clock | 4.4 GHz+19% | 3.7 GHz |
| Base Clock | 3.2 GHz+52% | 2.1 GHz |
| L3 Cache | 256 MB (total) | 320 MB (total)+25% |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 4 nm | 3 nm-25% |
| Architecture | Turin (2024) | Turin (2024) |
| PassMark | 135,441 | 152,985+13% |
| Geekbench 6 Single | 2,815 | — |
| Geekbench 6 Multi | 29,406 | — |
Memory & Platform
Both processors use the SP5 socket with PCIe 5.0. Both support up to DDR5-6000 memory speed. Both support up to 6 TB of RAM. Both feature 12-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: SP5 (EPYC 9555P) and SP5 (EPYC 9845).
| Feature | EPYC 9555P | EPYC 9845 |
|---|---|---|
| Socket | SP5 | SP5 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-6000 | DDR5-6000 |
| Max RAM Capacity | 6 TB | 6 TB |
| RAM Channels | 12 | 12 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128 | 128 |
Advanced Features
Both support AMD-V, SEV-SNP virtualization. Primary use case: EPYC 9555P targets Data Center / Single Socket, EPYC 9845 targets Data Center / AI Training. Direct competitor: EPYC 9555P rivals Xeon 6979P; EPYC 9845 rivals Xeon 6972P.
| Feature | EPYC 9555P | EPYC 9845 |
|---|---|---|
| Integrated GPU | No | No |
| Virtualization | AMD-V, SEV-SNP | AMD-V, SEV-SNP |
| Target Use | Data Center / Single Socket | Data Center / AI Training |
Value Analysis
The EPYC 9555P launched at $7983 MSRP, while the EPYC 9845 debuted at $13564. At current prices ($6130 vs $8670), the EPYC 9555P is $2540 cheaper. In terms of value (PassMark points per dollar), the EPYC 9555P delivers 22.1 pts/$ vs 17.6 pts/$ for the EPYC 9845 — making the EPYC 9555P the 22.4% better value option.
| Feature | EPYC 9555P | EPYC 9845 |
|---|---|---|
| MSRP | $7983-41% | $13564 |
| Avg Price (30d) | $6130-29% | $8670 |
| Performance per Dollar | 22.1+26% | 17.6 |
| Release Date | 2024 | 2024 |
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