Core i5-12400F vs EPYC 7643
Core i5-12400F
EPYC 7643
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 Core i5-12400F
Performance Per Dollar EPYC 7643
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-12400F | EPYC 7643 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($110) | ⚠️ Higher cost ($2,750) |
| Longevity | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) | ✨ Modern (Milan (2021−2023) / 7 nm+) |
💎 Value Proposition
| Insight | Core i5-12400F | EPYC 7643 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+542%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($110) | ⚠️ Higher cost ($2,750) |
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 Core i5-12400F and EPYC 7643
Core i5-12400F
The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.
EPYC 7643
The EPYC 7643 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 48 cores and 96 threads. Base frequency is 2.3 GHz, with boost up to 3.6 GHz. L3 cache: 256 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: 76,050 points. Launch price was $4,995.
Processing Power
The Core i5-12400F packs 6 cores / 12 threads, while the EPYC 7643 offers 48 cores / 96 threads — the EPYC 7643 has 42 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 3.6 GHz on the EPYC 7643 — a 20% clock advantage for the Core i5-12400F (base: 2.5 GHz vs 2.3 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the EPYC 7643 uses Milan (2021−2023) (7 nm+). In PassMark, the Core i5-12400F scores 19,532 against the EPYC 7643's 76,050 — a 118.3% lead for the EPYC 7643. Geekbench 6 single-core — the metric most relevant to gaming — records 1,700 vs 1,671, a 1.7% lead for the Core i5-12400F that directly translates to higher frame rates. Multi-core Geekbench: 657 vs 15,000 (183.2% advantage for the EPYC 7643). L3 cache: 18 MB (total) on the Core i5-12400F vs 256 MB (total) on the EPYC 7643.
| Feature | Core i5-12400F | EPYC 7643 |
|---|---|---|
| Cores / Threads | 6 / 12 | 48 / 96+700% |
| Boost Clock | 4.4 GHz+22% | 3.6 GHz |
| Base Clock | 2.5 GHz+9% | 2.3 GHz |
| L3 Cache | 18 MB (total) | 256 MB (total)+1322% |
| L2 Cache | 1.25 MB (per core)+150% | 512 kB (per core) |
| Process | Intel 7 nm | 7 nm+ |
| Architecture | Alder Lake-S (2022) | Milan (2021−2023) |
| PassMark | 19,532 | 76,050+289% |
| Cinebench R23 Multi | 12,380 | — |
| Geekbench 6 Single | 1,700+2% | 1,671 |
| Geekbench 6 Multi | 657 | 15,000+2183% |
Memory & Platform
The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the EPYC 7643 uses SP3 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400F versus DDR4-3200 on the EPYC 7643 — the Core i5-12400F supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-12400F supports up to 128 GB of RAM compared to 4 TB — 187.9% more capacity for professional workloads. Memory channels: 2 (Core i5-12400F) vs 8 (EPYC 7643). PCIe lanes: 20 (Core i5-12400F) vs 128 (EPYC 7643) — the EPYC 7643 offers 108 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and SP3 (EPYC 7643).
| Feature | Core i5-12400F | EPYC 7643 |
|---|---|---|
| Socket | LGA1700 | SP3 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | DDR5-4800, DDR4-3200+25% | DDR4-3200 |
| Max RAM Capacity | 128 GB | 4 TB+3100% |
| RAM Channels | 2 | 8+300% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 20 | 128+540% |
Advanced Features
Virtualization support: VT-x, VT-d, EPT (Core i5-12400F) vs AMD-V (EPYC 7643). Primary use case: Core i5-12400F targets Gaming Performance/Value, EPYC 7643 targets Server. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; EPYC 7643 rivals EPYC 7443P.
| Feature | Core i5-12400F | EPYC 7643 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | — | None |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | VT-x, VT-d, EPT | AMD-V |
| Target Use | Gaming Performance/Value | Server |
Value Analysis
The Core i5-12400F launched at $174 MSRP, while the EPYC 7643 debuted at $4995. At current prices ($110 vs $2750), the Core i5-12400F is $2640 cheaper. In terms of value (PassMark points per dollar), the Core i5-12400F delivers 177.6 pts/$ vs 27.7 pts/$ for the EPYC 7643 — making the Core i5-12400F the 146.1% better value option.
| Feature | Core i5-12400F | EPYC 7643 |
|---|---|---|
| MSRP | $174-97% | $4995 |
| Avg Price (30d) | $110-96% | $2750 |
| Performance per Dollar | 177.6+541% | 27.7 |
| Release Date | 2022 | 2021 |
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