M3 Max 14-Core vs Xeon w5-2455X
M3 Max 14-Core
Xeon w5-2455X
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 M3 Max 14-Core
Performance Per Dollar Xeon w5-2455X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | M3 Max 14-Core | Xeon w5-2455X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($1,049) |
| Longevity | ✨ Modern (Legacy / 3 nm) | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) |
💎 Value Proposition
| Insight | M3 Max 14-Core | Xeon w5-2455X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($1,049) |
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 M3 Max 14-Core and Xeon w5-2455X
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.
Xeon w5-2455X
The Xeon w5-2455X is manufactured by Intel. It was released in 15 February 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 12 cores and 24 threads. Base frequency is 3.2 GHz, with boost up to 4.6 GHz. L3 cache: 30 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 200 Watt. Memory support: DDR5-4800. Passmark benchmark score: 37,109 points. Launch price was $1,039.
Processing Power
The M3 Max 14-Core packs 14 cores / 14 threads, while the Xeon w5-2455X offers 12 cores / 24 threads — the M3 Max 14-Core has 2 more cores. Boost clocks reach 4.06 GHz on the M3 Max 14-Core versus 4.6 GHz on the Xeon w5-2455X — a 12.5% clock advantage for the Xeon w5-2455X (base: 2.748 GHz vs 3.2 GHz). The Xeon w5-2455X is built on the Sapphire Rapids (2023−2024) architecture. In PassMark, the M3 Max 14-Core scores 36,529 against the Xeon w5-2455X's 37,109 — a 1.6% lead for the Xeon w5-2455X.
| Feature | M3 Max 14-Core | Xeon w5-2455X |
|---|---|---|
| Cores / Threads | 14 / 14+17% | 12 / 24 |
| Boost Clock | 4.06 GHz | 4.6 GHz+13% |
| Base Clock | 2.748 GHz | 3.2 GHz+16% |
| L3 Cache | — | 30 MB |
| L2 Cache | — | 2 MB (per core) |
| Process | 3 nm-57% | Intel 7 nm |
| Architecture | — | Sapphire Rapids (2023−2024) |
| PassMark | 36,529 | 37,109+2% |
Memory & Platform
The M3 Max 14-Core uses the none socket (PCIe 4.0), while the Xeon w5-2455X uses LGA4677 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 6400 on the M3 Max 14-Core versus 4800 on the Xeon w5-2455X — the M3 Max 14-Core supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w5-2455X supports up to 2048 of RAM compared to 96 — 182.1% more capacity for professional workloads. Memory channels: 0 (M3 Max 14-Core) vs 4 (Xeon w5-2455X). PCIe lanes: 0 (M3 Max 14-Core) vs 64 (Xeon w5-2455X) — the Xeon w5-2455X offers 64 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Apple M3 (M3 Max 14-Core) and W790 (Xeon w5-2455X).
| Feature | M3 Max 14-Core | Xeon w5-2455X |
|---|---|---|
| Socket | none | LGA4677 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 6400+33% | 4800 |
| Max RAM Capacity | 96 | 2048+2033% |
| RAM Channels | 0 | 4 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | 64 |
Advanced Features
Only the Xeon w5-2455X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon w5-2455X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (macOS) (M3 Max 14-Core) vs VT-x, VT-d (Xeon w5-2455X). The M3 Max 14-Core includes integrated graphics (Apple M3 Max GPU (30-core)), while the Xeon w5-2455X requires a dedicated GPU. Direct competitor: M3 Max 14-Core rivals Core i9-13900HX; Xeon w5-2455X rivals Threadripper 7960X.
| Feature | M3 Max 14-Core | Xeon w5-2455X |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Apple M3 Max GPU (30-core) | None |
| Unlocked | No | Yes |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d (macOS) | VT-x, VT-d |
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