
M3 Max 16-Core vs Xeon 6515P

M3 Max 16-Core

Xeon 6515P
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 16-Core
Performance Per Dollar Xeon 6515P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | M3 Max 16-Core | Xeon 6515P |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($886) |
| Longevity | ✨ Modern (Legacy / 3 nm) | ✨ Modern (Granite Rapids (2024−2025) / Intel 3 nm) |
💎 Value Proposition
| Insight | M3 Max 16-Core | Xeon 6515P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($886) |
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 16-Core and Xeon 6515P
M3 Max 16-Core
The M3 Max 16-Core is manufactured by Apple. It was released in 30 October 2023 (2 years ago). It features 16 cores and 16 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, LPDDR5X. Passmark benchmark score: 41,257 points. Launch price was $499.

Xeon 6515P
The Xeon 6515P is manufactured by Intel. It was released in 24 February 2025 (less than a year ago). It is based on the Granite Rapids (2024−2025) architecture. It features 16 cores and 32 threads. Base frequency is 2.3 GHz, with boost up to 3.8 GHz. L3 cache: 72 MB (total). L2 cache: 2 MB (per core). Built on Intel 3 nm process technology. Socket: LGA4710. Thermal design power (TDP): 150 Watt. Memory support: DDR5(6400MT/s). Passmark benchmark score: 40,720 points. Launch price was $740.
Processing Power
The M3 Max 16-Core packs 16 cores / 16 threads, matching the Xeon 6515P's 16 cores. Boost clocks reach 4.06 GHz on the M3 Max 16-Core versus 3.8 GHz on the Xeon 6515P — a 6.6% clock advantage for the M3 Max 16-Core (base: 2.748 GHz vs 2.3 GHz). The Xeon 6515P is built on the Granite Rapids (2024−2025) architecture. In PassMark, the M3 Max 16-Core scores 41,257 against the Xeon 6515P's 40,720 — a 1.3% lead for the M3 Max 16-Core.
| Feature | M3 Max 16-Core | Xeon 6515P |
|---|---|---|
| Cores / Threads | 16 / 16 | 16 / 32 |
| Boost Clock | 4.06 GHz+7% | 3.8 GHz |
| Base Clock | 2.748 GHz+19% | 2.3 GHz |
| L3 Cache | — | 72 MB (total) |
| L2 Cache | — | 2 MB (per core) |
| Process | 3 nm | Intel 3 nm |
| Architecture | — | Granite Rapids (2024−2025) |
| PassMark | 41,257+1% | 40,720 |
Memory & Platform
The M3 Max 16-Core uses the none socket (PCIe 4.0), while the Xeon 6515P uses LGA4710 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to 6400 memory speed. The Xeon 6515P supports up to 4096 of RAM compared to 128 — 187.9% more capacity for professional workloads. Memory channels: 4 (M3 Max 16-Core) vs 8 (Xeon 6515P). PCIe lanes: 0 (M3 Max 16-Core) vs 88 (Xeon 6515P) — the Xeon 6515P offers 88 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Apple M3 (M3 Max 16-Core) and LGA4710 (Xeon 6515P).
| Feature | M3 Max 16-Core | Xeon 6515P |
|---|---|---|
| Socket | none | LGA4710 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 6400 | 6400 |
| Max RAM Capacity | 128 | 4096+3100% |
| RAM Channels | 4 | 8+100% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | 88 |
Advanced Features
Neither processor supports overclocking. Only the Xeon 6515P supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (macOS) (M3 Max 16-Core) vs VT-x, VT-d (Xeon 6515P). The M3 Max 16-Core includes integrated graphics (Apple M3 Max GPU (40-core)), while the Xeon 6515P requires a dedicated GPU. Direct competitor: M3 Max 16-Core rivals Core i9-13950HX; Xeon 6515P rivals EPYC 9534.
| Feature | M3 Max 16-Core | Xeon 6515P |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Apple M3 Max GPU (40-core) | None |
| Unlocked | No | No |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d (macOS) | VT-x, VT-d |
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