Xeon Platinum 8461V vs EPYC 7643
Xeon Platinum 8461V
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 Xeon Platinum 8461V
Performance Per Dollar EPYC 7643
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Platinum 8461V | EPYC 7643 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($4,491) | ✅ More affordable ($2,750) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) | ✨ Modern (Milan (2021−2023) / 7 nm+) |
💎 Value Proposition
| Insight | Xeon Platinum 8461V | EPYC 7643 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+66%) |
| Upfront Cost | ⚠️ Higher cost ($4,491) | ✅ More affordable ($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 Xeon Platinum 8461V and EPYC 7643
Xeon Platinum 8461V
The Xeon Platinum 8461V is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 48 cores and 96 threads. Base frequency is 2.2 GHz, with boost up to 3.7 GHz. L3 cache: 97.5 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 300 Watt. Memory support: DDR5-4800, DDR5-4400. Passmark benchmark score: 74,982 points. Launch price was $4,491.
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
Both the Xeon Platinum 8461V and EPYC 7643 share an identical 48-core/96-thread configuration. Boost clocks reach 3.7 GHz on the Xeon Platinum 8461V versus 3.6 GHz on the EPYC 7643 — a 2.7% clock advantage for the Xeon Platinum 8461V (base: 2.2 GHz vs 2.3 GHz). The Xeon Platinum 8461V uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the EPYC 7643 uses Milan (2021−2023) (7 nm+). In PassMark, the Xeon Platinum 8461V scores 74,982 against the EPYC 7643's 76,050 — a 1.4% lead for the EPYC 7643. L3 cache: 97.5 MB on the Xeon Platinum 8461V vs 256 MB (total) on the EPYC 7643.
| Feature | Xeon Platinum 8461V | EPYC 7643 |
|---|---|---|
| Cores / Threads | 48 / 96 | 48 / 96 |
| Boost Clock | 3.7 GHz+3% | 3.6 GHz |
| Base Clock | 2.2 GHz | 2.3 GHz+5% |
| L3 Cache | 97.5 MB | 256 MB (total)+163% |
| L2 Cache | 2 MB (per core)+300% | 512 kB (per core) |
| Process | Intel 7 nm | 7 nm+ |
| Architecture | Sapphire Rapids (2023−2024) | Milan (2021−2023) |
| PassMark | 74,982 | 76,050+1% |
| Geekbench 6 Single | — | 1,671 |
| Geekbench 6 Multi | — | 15,000 |
Memory & Platform
The Xeon Platinum 8461V uses the LGA4677 socket (PCIe 5.0), while the EPYC 7643 uses SP3 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Xeon Platinum 8461V versus DDR4-3200 on the EPYC 7643 — the Xeon Platinum 8461V supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Platinum 8461V supports up to 4096 of RAM compared to 4 TB — 199.6% more capacity for professional workloads. Both feature 8-channel memory with ECC support. PCIe lanes: 80 (Xeon Platinum 8461V) vs 128 (EPYC 7643) — the EPYC 7643 offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Platinum 8461V) and SP3 (EPYC 7643).
| Feature | Xeon Platinum 8461V | EPYC 7643 |
|---|---|---|
| Socket | LGA4677 | SP3 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | 4800+119900% | DDR4-3200 |
| Max RAM Capacity | 4096 | 4 TB+104857500% |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 80 | 128+60% |
Advanced Features
Neither processor supports overclocking. Only the Xeon Platinum 8461V supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Xeon Platinum 8461V) vs AMD-V (EPYC 7643). Primary use case: EPYC 7643 targets Server. Direct competitor: Xeon Platinum 8461V rivals EPYC 9454; EPYC 7643 rivals EPYC 7443P.
| Feature | Xeon Platinum 8461V | EPYC 7643 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d | AMD-V |
| Target Use | — | Server |
Value Analysis
The Xeon Platinum 8461V launched at $4491 MSRP, while the EPYC 7643 debuted at $4995. At current prices ($4491 vs $2750), the EPYC 7643 is $1741 cheaper. In terms of value (PassMark points per dollar), the Xeon Platinum 8461V delivers 16.7 pts/$ vs 27.7 pts/$ for the EPYC 7643 — making the EPYC 7643 the 49.4% better value option.
| Feature | Xeon Platinum 8461V | EPYC 7643 |
|---|---|---|
| MSRP | $4491-10% | $4995 |
| Avg Price (30d) | $4491 | $2750-39% |
| Performance per Dollar | 16.7 | 27.7+66% |
| Release Date | 2023 | 2021 |
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