CPU
GPU
EPYC 9684X
EPYC 9634
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 9684X
Performance Per Dollar EPYC 9634
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 9684X | EPYC 9634 |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($14,756) | ✅ More affordable ($3,949) |
| Longevity | ✨ Modern (Genoa-X (2023) / 5 nm) | ✨ Modern (Genoa (2022−2023) / 5 nm, 6 nm) |
💎 Value Proposition
| Insight | EPYC 9684X | EPYC 9634 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+231%) |
| Upfront Cost | ⚠️ Higher cost ($14,756) | ✅ More affordable ($3,949) |
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 9684X and EPYC 9634
EPYC 9684X
The EPYC 9684X is manufactured by AMD. It was released in 13 June 2023 (2 years ago). It is based on the Genoa-X (2023) architecture. It features 96 cores and 192 threads. Base frequency is 2.55 GHz, with boost up to 3.7 GHz. L3 cache: 1152 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: SP5. Thermal design power (TDP): 400 Watt. Memory support: DDR5. Passmark benchmark score: 122,017 points. Launch price was $14,756.
EPYC 9634
The EPYC 9634 is manufactured by AMD. It was released in 10 November 2022 (3 years ago). It is based on the Genoa (2022−2023) architecture. It features 84 cores and 168 threads. Base frequency is 2.25 GHz, with boost up to 3.7 GHz. L3 cache: 384 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: SP5. Thermal design power (TDP): 290 Watt. Memory support: DDR5-4800. Passmark benchmark score: 107,944 points. Launch price was $10,304.
Processing Power
The EPYC 9684X packs 96 cores / 192 threads, while the EPYC 9634 offers 84 cores / 168 threads — the EPYC 9684X has 12 more cores. Boost clocks reach 3.7 GHz on the EPYC 9684X versus 3.7 GHz on the EPYC 9634 — identical boost frequencies (base: 2.55 GHz vs 2.25 GHz). The EPYC 9684X uses the Genoa-X (2023) architecture (5 nm), while the EPYC 9634 uses Genoa (2022−2023) (5 nm, 6 nm). In PassMark, the EPYC 9684X scores 122,017 against the EPYC 9634's 107,944 — a 12.2% lead for the EPYC 9684X. L3 cache: 1152 MB (total) on the EPYC 9684X vs 384 MB (total) on the EPYC 9634.
| Feature | EPYC 9684X | EPYC 9634 |
|---|---|---|
| Cores / Threads | 96 / 192+14% | 84 / 168 |
| Boost Clock | 3.7 GHz | 3.7 GHz |
| Base Clock | 2.55 GHz+13% | 2.25 GHz |
| L3 Cache | 1152 MB (total)+200% | 384 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 5 nm | 5 nm, 6 nm |
| Architecture | Genoa-X (2023) | Genoa (2022−2023) |
| PassMark | 122,017+13% | 107,944 |
| Geekbench 6 Single | — | 1,800 |
| Geekbench 6 Multi | — | 85,000 |
Memory & Platform
Both processors use the SP5 socket with PCIe 5.0. Both support up to DDR5-4800 memory speed. The EPYC 9634 supports up to 6144 GB of RAM compared to 6 TB — 199.6% more capacity for professional workloads. Both feature 12-channel memory with ECC support. Both provide 128 PCIe lanes. Chipset compatibility: SP5 (EPYC 9684X) and SoC (EPYC 9634).
| Feature | EPYC 9684X | EPYC 9634 |
|---|---|---|
| Socket | SP5 | SP5 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-4800 | DDR5-4800 |
| Max RAM Capacity | 6 TB | 6144 GB |
| RAM Channels | 12 | 12 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128 | 128 |
Advanced Features
Virtualization support: AMD-V, SEV-SNP (EPYC 9684X) vs AMD-V (EPYC 9634). Primary use case: EPYC 9684X targets HPC / Cache Sensitive Workloads, EPYC 9634 targets Server/Datacenter. Direct competitor: EPYC 9684X rivals Xeon 6979P; EPYC 9634 rivals Xeon 8470.
| Feature | EPYC 9684X | EPYC 9634 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | — | No |
| AVX-512 | — | Yes |
| Virtualization | AMD-V, SEV-SNP | AMD-V |
| Target Use | HPC / Cache Sensitive Workloads | Server/Datacenter |
Value Analysis
The EPYC 9684X launched at $14756 MSRP, while the EPYC 9634 debuted at $10304. At current prices ($14756 vs $3949), the EPYC 9634 is $10807 cheaper. In terms of value (PassMark points per dollar), the EPYC 9684X delivers 8.3 pts/$ vs 27.3 pts/$ for the EPYC 9634 — making the EPYC 9634 the 107.1% better value option.
| Feature | EPYC 9684X | EPYC 9634 |
|---|---|---|
| MSRP | $14756 | $10304-30% |
| Avg Price (30d) | $14756 | $3949-73% |
| Performance per Dollar | 8.3 | 27.3+229% |
| Release Date | 2023 | 2022 |
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