Xeon Gold 6548Y+ vs EPYC 7643
Xeon Gold 6548Y+
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 Gold 6548Y+
Performance Per Dollar EPYC 7643
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6548Y+ | EPYC 7643 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($3,726) | ✅ More affordable ($2,750) |
| Longevity | ✨ Modern (Emerald Rapids (2023) / 10 nm) | ✨ Modern (Milan (2021−2023) / 7 nm+) |
💎 Value Proposition
| Insight | Xeon Gold 6548Y+ | EPYC 7643 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+40%) |
| Upfront Cost | ⚠️ Higher cost ($3,726) | ✅ 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 Gold 6548Y+ and EPYC 7643
Xeon Gold 6548Y+
The Xeon Gold 6548Y+ is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Emerald Rapids (2023) architecture. It features 32 cores and 64 threads. Base frequency is 2.5 GHz, with boost up to 4.1 GHz. L3 cache: 60 MB (total). L2 cache: 2 MB (per core). Built on 10 nm process technology. Socket: LGA4677. Thermal design power (TDP): 250 Watt. Memory support: DDR5. Passmark benchmark score: 73,387 points. Launch price was $3,726.
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 Xeon Gold 6548Y+ packs 32 cores / 64 threads, while the EPYC 7643 offers 48 cores / 96 threads — the EPYC 7643 has 16 more cores. Boost clocks reach 4.1 GHz on the Xeon Gold 6548Y+ versus 3.6 GHz on the EPYC 7643 — a 13% clock advantage for the Xeon Gold 6548Y+ (base: 2.5 GHz vs 2.3 GHz). The Xeon Gold 6548Y+ uses the Emerald Rapids (2023) architecture (10 nm), while the EPYC 7643 uses Milan (2021−2023) (7 nm+). In PassMark, the Xeon Gold 6548Y+ scores 73,387 against the EPYC 7643's 76,050 — a 3.6% lead for the EPYC 7643. L3 cache: 60 MB (total) on the Xeon Gold 6548Y+ vs 256 MB (total) on the EPYC 7643.
| Feature | Xeon Gold 6548Y+ | EPYC 7643 |
|---|---|---|
| Cores / Threads | 32 / 64 | 48 / 96+50% |
| Boost Clock | 4.1 GHz+14% | 3.6 GHz |
| Base Clock | 2.5 GHz+9% | 2.3 GHz |
| L3 Cache | 60 MB (total) | 256 MB (total)+327% |
| L2 Cache | 2 MB (per core)+300% | 512 kB (per core) |
| Process | 10 nm | 7 nm+-30% |
| Architecture | Emerald Rapids (2023) | Milan (2021−2023) |
| PassMark | 73,387 | 76,050+4% |
| Geekbench 6 Single | — | 1,671 |
| Geekbench 6 Multi | — | 15,000 |
Memory & Platform
The Xeon Gold 6548Y+ 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 5200 on the Xeon Gold 6548Y+ versus DDR4-3200 on the EPYC 7643 — the Xeon Gold 6548Y+ supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6548Y+ 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 Gold 6548Y+) vs 128 (EPYC 7643) — the EPYC 7643 offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Gold 6548Y+) and SP3 (EPYC 7643).
| Feature | Xeon Gold 6548Y+ | EPYC 7643 |
|---|---|---|
| Socket | LGA4677 | SP3 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | 5200+129900% | 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 Gold 6548Y+ supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Xeon Gold 6548Y+) vs AMD-V (EPYC 7643). Primary use case: EPYC 7643 targets Server. Direct competitor: Xeon Gold 6548Y+ rivals EPYC 9454; EPYC 7643 rivals EPYC 7443P.
| Feature | Xeon Gold 6548Y+ | 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 Gold 6548Y+ launched at $3726 MSRP, while the EPYC 7643 debuted at $4995. At current prices ($3726 vs $2750), the EPYC 7643 is $976 cheaper. In terms of value (PassMark points per dollar), the Xeon Gold 6548Y+ delivers 19.7 pts/$ vs 27.7 pts/$ for the EPYC 7643 — making the EPYC 7643 the 33.6% better value option.
| Feature | Xeon Gold 6548Y+ | EPYC 7643 |
|---|---|---|
| MSRP | $3726-25% | $4995 |
| Avg Price (30d) | $3726 | $2750-26% |
| Performance per Dollar | 19.7 | 27.7+41% |
| Release Date | 2023 | 2021 |
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