Xeon Platinum 8280 vs M3 Max 14-Core
Xeon Platinum 8280
M3 Max 14-Core
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 8280
Performance Per Dollar M3 Max 14-Core
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Platinum 8280 | M3 Max 14-Core |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($2,940) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Cascade Lake-SP (2018) / 14 nm) | ✨ Modern (Legacy / 3 nm) |
💎 Value Proposition
| Insight | Xeon Platinum 8280 | M3 Max 14-Core |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($2,940) | ✅ More affordable ($0) |
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 8280 and M3 Max 14-Core
Xeon Platinum 8280
The Xeon Platinum 8280 is manufactured by Intel. It was released in 11 December 2018 (6 years ago). It is based on the Cascade Lake-SP (2018) architecture. It features 28 cores and 56 threads. Base frequency is 2.7 GHz, with boost up to 4 GHz. L3 cache: 38.5 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 205 Watt. Memory support: DDR4-2933. Passmark benchmark score: 36,830 points. Launch price was $10,009.
M3 Max 14-Core
The M3 Max 14-Core is manufactured by Apple. It was released in 30 October 2023 (2 years ago). It features 14 cores and 14 threads. Base frequency is 2.748 GHz, with boost up to 4.06 GHz. Built on 3 nm process technology. Socket: none. Memory support: LPDDR5. Passmark benchmark score: 36,529 points. Launch price was $499.
Processing Power
The Xeon Platinum 8280 packs 28 cores / 56 threads, while the M3 Max 14-Core offers 14 cores / 14 threads — the Xeon Platinum 8280 has 14 more cores. Boost clocks reach 4 GHz on the Xeon Platinum 8280 versus 4.06 GHz on the M3 Max 14-Core — a 1.5% clock advantage for the M3 Max 14-Core (base: 2.7 GHz vs 2.748 GHz). The Xeon Platinum 8280 is built on the Cascade Lake-SP (2018) architecture. In PassMark, the Xeon Platinum 8280 scores 36,830 against the M3 Max 14-Core's 36,529 — a 0.8% lead for the Xeon Platinum 8280.
| Feature | Xeon Platinum 8280 | M3 Max 14-Core |
|---|---|---|
| Cores / Threads | 28 / 56+100% | 14 / 14 |
| Boost Clock | 4 GHz | 4.06 GHz+1% |
| Base Clock | 2.7 GHz | 2.748 GHz+2% |
| L3 Cache | 38.5 MB (total) | — |
| L2 Cache | 1 MB (per core) | — |
| Process | 14 nm | 3 nm-79% |
| Architecture | Cascade Lake-SP (2018) | — |
| PassMark | 36,830 | 36,529 |
Memory & Platform
The Xeon Platinum 8280 uses the LGA3647 socket (PCIe 3.0), while the M3 Max 14-Core uses none (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 2933 on the Xeon Platinum 8280 versus 6400 on the M3 Max 14-Core — the M3 Max 14-Core supports 74.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Platinum 8280 supports up to 1536 of RAM compared to 96 — 176.5% more capacity for professional workloads. Memory channels: 6 (Xeon Platinum 8280) vs 0 (M3 Max 14-Core). PCIe lanes: 48 (Xeon Platinum 8280) vs 0 (M3 Max 14-Core) — the Xeon Platinum 8280 offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: LGA3647 (Xeon Platinum 8280) and Apple M3 (M3 Max 14-Core).
| Feature | Xeon Platinum 8280 | M3 Max 14-Core |
|---|---|---|
| Socket | LGA3647 | none |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | 2933 | 6400+118% |
| Max RAM Capacity | 1536+1500% | 96 |
| RAM Channels | 6 | 0 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 48 | 0 |
Advanced Features
Neither processor supports overclocking. Only the Xeon Platinum 8280 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Xeon Platinum 8280) vs VT-x, VT-d (macOS) (M3 Max 14-Core). The M3 Max 14-Core includes integrated graphics (Apple M3 Max GPU (30-core)), while the Xeon Platinum 8280 requires a dedicated GPU. Direct competitor: Xeon Platinum 8280 rivals EPYC 7702; M3 Max 14-Core rivals Core i9-13900HX.
| Feature | Xeon Platinum 8280 | M3 Max 14-Core |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | Apple M3 Max GPU (30-core) |
| Unlocked | No | No |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d | VT-x, VT-d (macOS) |
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