CPU Comparison
Apple M2 Ultra vs Intel Xeon w5-2555X
A side-by-side comparison of specs, performance and value. The Apple M2 Ultra is a system-on-a-chip (SoC) designed by Apple, representing the pinnacle of the M2 family. Built using TSMC's 5nm process, it combines two M2 Max dies using Apple's custom UltraFusion architecture to deliver unprecedented processing power for professional workflows.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- The 32-core Neural Engine provides massive throughput for on-device ML.
- Ideal for training large Core ML models locally.
- PyTorch and TensorFlow are well-optimized for this architecture via MPS.
- Intel AMX accelerates matrix operations, useful for CPU-based inference and small-to-medium models.
- AVX-512 VNNI and bfloat16 enhance deep learning kernels.
- For large-scale training, a dedicated GPU is recommended.
Content Creation
Gaming
- While the GPU is powerful, macOS gaming library is limited.
- Lack of dedicated ray tracing hardware compared to modern NVIDIA/AMD GPUs.
- Excellent performance for Apple Arcade and optimized titles.
- Not designed for high-refresh-rate competitive gaming.
- Requires a discrete GPU; no iGPU present.
- Single-thread performance is competitive but not class-leading.
- Platform and power draw are overkill for a dedicated gaming build.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Massive unified memory capacity (up to 192GB)
- Incredible power efficiency relative to performance
- Industry-leading media engine for video professionals
- Silent operation in Mac Studio chassis
- Seamless integration with macOS ecosystem
Cons
- Cannot upgrade RAM or storage after purchase
- High cost of entry for professional configurations
- Software compatibility issues with some legacy x86 plugins
- Gaming performance trails dedicated high-end PCs
- Repairability is extremely limited
Pros
- 14 P-cores and 28 threads for strong multi-threaded throughput.
- 64 PCIe 5.0 lanes for extensive I/O expansion.
- Quad-channel DDR5-4800 with ECC support up to 2 TB.
- AMX and AVX-512 accelerate AI and HPC workloads.
- Intel vPro Enterprise and AMT for remote management.
- Monolithic die simplifies latency-sensitive workloads.
Cons
- No integrated graphics; a discrete GPU is required.
- Locked multiplier limits enthusiast overclocking.
- Higher power draw (210 W base/252 W turbo) than mainstream desktop CPUs.
- Platform cost (W790 motherboards and DDR5 RDIMMs) is significant.
- Single-thread performance is competitive but not class-leading for gaming.
Competitors & Alternatives
Apple M2 Ultra
- AMD Ryzen Threadripper Pro 7995WXRival
Workstation
- Intel Xeon w9-3495XRival
Workstation
- NVIDIA RTX 6000 Ada GenerationRival
GPU Compute
- AMD Ryzen 9 7950XRival
High-End Desktop
- Compare head-to-headApple M3 MaxRival
Mobile Workstation
- Custom PC (Threadripper + RTX 4090)Alt
Better for users who need Windows-specific software, maximum upgradeability, or raw gaming FPS.
- Alt
Significantly cheaper while still offering excellent performance for most creative tasks.
Compare head-to-head - Mac Studio M1 UltraAlt
Viable used option for those who need raw power but have a tighter budget.
- Intel Core i9-14900K BuildAlt
Higher peak clock speeds for specific gaming and lightly-threaded workloads.
Intel Xeon w5-2555X
- AMD Ryzen Threadripper PRO 5955WXRival
Workstation
- AMD Ryzen 9 7950XRival
High-End Desktop/Workstation
- Compare head-to-headIntel Xeon w5-2565XRival
Workstation
- Compare head-to-headIntel Core i9-14900KRival
Enthusiast Desktop
- AMD Ryzen Threadripper 7980XRival
High-End Workstation
- Intel Xeon w5-2455XAlt
Lower cost with similar platform; suitable if slightly lower clocks and cache are acceptable.
Our Verdict on Each
The M2 Ultra is a technological marvel that effectively renders high-end Intel Xeon and AMD Threadripper workstations obsolete for the vast majority of creative professionals by offering massive memory bandwidth and core counts in a relatively power-efficient package.
Best for: Professional video editing, 3D animation, or developers requiring massive memory datasets.
Read the full reviewThe Xeon w5-2555X brings 14 Golden Cove cores, 64 PCIe 5.0 lanes, and quad-channel DDR5 to a single-socket workstation, making it well-suited for I/O-heavy professional workloads. It lacks integrated graphics, has a 210 W base power draw, and requires a W790-class platform. Ideal for users who need PCIe 5.0 expansion and ECC memory, though mainstream desktops often deliver better single-thread performance per dollar.
Best for: Single-socket workstation builds that need 64 PCIe 5.0 lanes, quad-channel DDR5 ECC, and ISV-certified stability for professional apps.
Read the full reviewFrequently Asked Questions
Which is better, Apple M2 Ultra or Intel Xeon w5-2555X?
Based on our editorial ratings, the Apple M2 Ultra comes out ahead with a score of 9.5/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.
Which is faster for gaming, Apple M2 Ultra or Intel Xeon w5-2555X?
For gaming, the Intel Xeon w5-2555X leads with a gaming performance score of 75/100 among Apple M2 Ultra and Intel Xeon w5-2555X.
Which uses less power?
The Intel Xeon w5-2555X has the lowest rated TDP. Power draw across these chips: Intel Xeon w5-2555X (0 W).
Do Apple M2 Ultra and Intel Xeon w5-2555X use the same socket?
No. They use different sockets (Apple M2 Ultra: BGA (Integrated), Intel Xeon w5-2555X: FCLGA4677), so each needs a compatible motherboard.
Which has more cores?
The Apple M2 Ultra has the most cores. Core counts: Apple M2 Ultra (24 cores), Intel Xeon w5-2555X (14 cores).