
M1 Pro 8-Core vs Xeon W-11855M

M1 Pro 8-Core

Xeon W-11855M
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 M1 Pro 8-Core
Performance Per Dollar Xeon W-11855M
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | M1 Pro 8-Core | Xeon W-11855M |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($200) |
| Longevity | ✨ Modern (Legacy / 5 nm) | ✨ Modern (Tiger Lake-H (2021) / 10 nm SuperFin) |
💎 Value Proposition
| Insight | M1 Pro 8-Core | Xeon W-11855M |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($200) |
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 M1 Pro 8-Core and Xeon W-11855M
M1 Pro 8-Core
The M1 Pro 8-Core is manufactured by Apple. It was released in 18 October 2021 (4 years ago). It features 8 cores and 8 threads. Base frequency is 2.06 GHz, with boost up to 3.22 GHz. L3 cache: 16 MB. L2 cache: 28 MB. Built on 5 nm process technology. Socket: none. Thermal design power (TDP): 28 MB + 16 MB. Memory support: LPDDR5. Passmark benchmark score: 17,218 points. Launch price was $299.

Xeon W-11855M
The Xeon W-11855M is manufactured by Intel. It was released in 11 May 2021 (4 years ago). It is based on the Tiger Lake-H (2021) architecture. It features 6 cores and 12 threads. Base frequency is 3.2 GHz, with boost up to 4.9 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1787. Thermal design power (TDP): 35 Watt. Memory support: DDR4. Passmark benchmark score: 17,462 points. Launch price was $450.
Processing Power
The M1 Pro 8-Core packs 8 cores / 8 threads, while the Xeon W-11855M offers 6 cores / 12 threads — the M1 Pro 8-Core has 2 more cores. Boost clocks reach 3.22 GHz on the M1 Pro 8-Core versus 4.9 GHz on the Xeon W-11855M — a 41.4% clock advantage for the Xeon W-11855M (base: 2.06 GHz vs 3.2 GHz). The Xeon W-11855M is built on the Tiger Lake-H (2021) architecture. In PassMark, the M1 Pro 8-Core scores 17,218 against the Xeon W-11855M's 17,462 — a 1.4% lead for the Xeon W-11855M. L3 cache: 16 MB on the M1 Pro 8-Core vs 18 MB (total) on the Xeon W-11855M.
| Feature | M1 Pro 8-Core | Xeon W-11855M |
|---|---|---|
| Cores / Threads | 8 / 8+33% | 6 / 12 |
| Boost Clock | 3.22 GHz | 4.9 GHz+52% |
| Base Clock | 2.06 GHz | 3.2 GHz+55% |
| L3 Cache | 16 MB | 18 MB (total)+13% |
| L2 Cache | 28 MB+2140% | 1.25 MB (per core) |
| Process | 5 nm-50% | 10 nm SuperFin |
| Architecture | — | Tiger Lake-H (2021) |
| PassMark | 17,218 | 17,462+1% |
Memory & Platform
The M1 Pro 8-Core uses the none socket (PCIe 4.0), while the Xeon W-11855M uses FCBGA1787 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | M1 Pro 8-Core | Xeon W-11855M |
|---|---|---|
| Socket | none | FCBGA1787 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | LPDDR5-6400 | — |
| Max RAM Capacity | 32 GB | — |
| RAM Channels | 4 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: Virtualization (M1 Pro 8-Core) / not specified (Xeon W-11855M). The M1 Pro 8-Core includes integrated graphics (Apple M1 Pro GPU (14-core)), while the Xeon W-11855M requires a dedicated GPU. Primary use case: M1 Pro 8-Core targets Mobile.
| Feature | M1 Pro 8-Core | Xeon W-11855M |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Apple M1 Pro GPU (14-core) | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | Virtualization | — |
| Target Use | Mobile | — |
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