M3 Max 16-Core vs Xeon 6515P

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.

M3 Max 16-Core vs Xeon 6515P FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

M3 Max 16-Core vs Xeon 6515P: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

M3 Max 16-Core

2023

Why buy it

✅Integrated graphics onboard with Apple M3 Max GPU (40-core), while Xeon 6515P needs a discrete GPU.

Trade-offs

❌Less compelling for workstation-style loads than Xeon 6515P, which brings 16 cores / 32 threads and 88 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon 6515P

2025

Why buy it

✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads, plus 88 PCIe lanes vs 0.
✅100+% more PCIe lanes (88 vs 0) for storage and expansion-heavy builds.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Lower PassMark (40,720 vs 41,257).
❌Launch MSRP is still $740 MSRP, while M3 Max 16-Core mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while M3 Max 16-Core can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is M3 Max 16-Core better than Xeon 6515P?

Not really, because they are built for different jobs. Xeon 6515P makes more sense for workstation-style multi-core throughput, while M3 Max 16-Core is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, M3 Max 16-Core is the better pick. According to our tests, it delivers 1.0% more average FPS across 50 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, M3 Max 16-Core is the stronger fit. You are getting 1.3% better PassMark, backed by 16 cores and 16 threads.

Which one is the smarter buy today, not just the cheaper CPU?

M3 Max 16-Core is still the faster CPU overall, but Xeon 6515P is easier to justify if budget matters more than peak performance. M3 Max 16-Core comes in at an unclear MSRP at unclear MSRP versus $740 MSRP, and it still gives you a 1.0% average FPS lead across 50 shared CPU game tests in our data. Xeon 6515P is also 100.0% better value on MSRP (55.0 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

Which one is more future-proof for 2026 and beyond?

Xeon 6515P makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2023) and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

M3 Max 16-Core vs Xeon 6515P Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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.

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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

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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 — 3100% 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	No	Yes
PCIe Lanes	0	88

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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.