Xeon Gold 6338T vs EPYC 4345P
Xeon Gold 6338T
EPYC 4345P
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 6338T
Performance Per Dollar EPYC 4345P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6338T | EPYC 4345P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($1,795) | ✅ More affordable ($329) |
| Longevity | ✨ Modern (Ice Lake-SP (2021) / 10 nm) | ✨ Modern (Grado (2025) / 4 nm) |
💎 Value Proposition
| Insight | Xeon Gold 6338T | EPYC 4345P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+449%) |
| Upfront Cost | ⚠️ Higher cost ($1,795) | ✅ More affordable ($329) |
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 6338T and EPYC 4345P
Xeon Gold 6338T
The Xeon Gold 6338T is manufactured by Intel. It was released in 2015-01-01. It is based on the Ice Lake-SP (2021) architecture. It features 24 cores and 48 threads. Base frequency is 2.1 GHz, with boost up to 3.4 GHz. L3 cache: 36 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 165 Watt. Memory support: DDR4-3200. Passmark benchmark score: 35,801 points. Launch price was $800.
EPYC 4345P
The EPYC 4345P is manufactured by AMD. It was released in 13 May 2025 (less than a year ago). It is based on the Grado (2025) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.5 GHz. L3 cache: 32 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 36,006 points. Launch price was $329.
Processing Power
The Xeon Gold 6338T packs 24 cores / 48 threads, while the EPYC 4345P offers 8 cores / 16 threads — the Xeon Gold 6338T has 16 more cores. Boost clocks reach 3.4 GHz on the Xeon Gold 6338T versus 5.5 GHz on the EPYC 4345P — a 47.2% clock advantage for the EPYC 4345P (base: 2.1 GHz vs 3.8 GHz). The Xeon Gold 6338T uses the Ice Lake-SP (2021) architecture (10 nm), while the EPYC 4345P uses Grado (2025) (4 nm). In PassMark, the Xeon Gold 6338T scores 35,801 against the EPYC 4345P's 36,006 — a 0.6% lead for the EPYC 4345P. L3 cache: 36 MB (total) on the Xeon Gold 6338T vs 32 MB (total) on the EPYC 4345P.
| Feature | Xeon Gold 6338T | EPYC 4345P |
|---|---|---|
| Cores / Threads | 24 / 48+200% | 8 / 16 |
| Boost Clock | 3.4 GHz | 5.5 GHz+62% |
| Base Clock | 2.1 GHz | 3.8 GHz+81% |
| L3 Cache | 36 MB (total)+13% | 32 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 10 nm | 4 nm-60% |
| Architecture | Ice Lake-SP (2021) | Grado (2025) |
| PassMark | 35,801 | 36,006 |
Memory & Platform
The Xeon Gold 6338T uses the LGA4189 socket (PCIe 4.0), while the EPYC 4345P uses AM5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the Xeon Gold 6338T versus 5600 on the EPYC 4345P — the EPYC 4345P supports 54.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6338T supports up to 6144 of RAM compared to 128 — 191.8% more capacity for professional workloads. Memory channels: 8 (Xeon Gold 6338T) vs 2 (EPYC 4345P). PCIe lanes: 64 (Xeon Gold 6338T) vs 28 (EPYC 4345P) — the Xeon Gold 6338T offers 36 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C621A (Xeon Gold 6338T) and AM5 (EPYC 4345P).
| Feature | Xeon Gold 6338T | EPYC 4345P |
|---|---|---|
| Socket | LGA4189 | AM5 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 3200 | 5600+75% |
| Max RAM Capacity | 6144+4700% | 128 |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 64+129% | 28 |
Advanced Features
Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d (Xeon Gold 6338T) vs AMD-V, IOMMU (EPYC 4345P). The EPYC 4345P includes integrated graphics (AMD Radeon Graphics), while the Xeon Gold 6338T requires a dedicated GPU. Direct competitor: Xeon Gold 6338T rivals EPYC 7443P; EPYC 4345P rivals Xeon E-2488.
| Feature | Xeon Gold 6338T | EPYC 4345P |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | AMD Radeon Graphics |
| Unlocked | No | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | AMD-V, IOMMU |
Value Analysis
The Xeon Gold 6338T launched at $3139 MSRP, while the EPYC 4345P debuted at $329. At current prices ($1795 vs $329), the EPYC 4345P is $1466 cheaper. In terms of value (PassMark points per dollar), the Xeon Gold 6338T delivers 19.9 pts/$ vs 109.4 pts/$ for the EPYC 4345P — making the EPYC 4345P the 138.3% better value option.
| Feature | Xeon Gold 6338T | EPYC 4345P |
|---|---|---|
| MSRP | $3139 | $329-90% |
| Avg Price (30d) | $1795 | $329-82% |
| Performance per Dollar | 19.9 | 109.4+450% |
| Release Date | 2021 | 2025 |
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