CPU Comparison
Intel Xeon 658X Processor vs Intel Xeon w9-3575X
A side-by-side comparison of specs, performance and value. The Intel Xeon 658X is a 24-core, 48-thread single-socket workstation processor based on the Granite Rapids-WS architecture, built on Intel 3 and targeting professional creators, engineers, and AI developers who need high memory capacity, wide PCIe 5.0 connectivity, and strong multi-threaded throughput in a single CPU.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- AMX with FP16 and AVX‑512 accelerates matrix operations for small to medium models.
- Suitable for local inference, prototyping, and data preprocessing where GPUs are not available or not desired.
- Not a replacement for dedicated AI accelerators for large‑scale training.
- Intel AMX and AVX-512 provide strong CPU-based AI inference and HPC potential.
- No dedicated AI accelerator like a discrete GPU or NPU, so large-scale training still requires GPUs.
- Well-suited for inference, scientific computing, and some HPC workloads that can leverage AMX/BF16.
Content Creation
Gaming
- 24 P‑cores with up to 4.9 GHz boost provide strong single‑thread performance for game logic and physics.
- High PCIe lane count helps with multi‑GPU or storage‑heavy setups, but games rarely exploit this.
- Modern gaming‑focused CPUs often deliver similar or better game performance with lower power and cost.
- Best treated as a gaming side‑grade for professionals who already need this CPU for work.
- Single-thread performance is good, but not class-leading compared to modern gaming CPUs.
- Very high power and platform cost for a gaming-focused build.
- Best used as a workstation CPU that also games, not the reverse.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 24 high‑performance Redwood Cove P‑cores with SMT for strong multi‑threaded throughput.
- 8‑channel DDR5‑6400 with support for up to 4 TB RAM and RDIMMs/MRDIMMs.
- 128 PCIe 5.0 lanes plus CXL 2.0 for dense GPU and NVMe configurations.
- Large 144 MB L3 cache improves performance for memory‑bound professional applications.
- AMX with FP16 and AVX‑512 accelerates AI and math‑heavy workloads.
- Unlocked multiplier and X‑series tuning for overclocking on W890 motherboards.
Cons
- High 250 W base and up to 300 W turbo power draw, requiring robust cooling and PSU.
- Premium price compared to mainstream desktop CPUs with similar core counts.
- No integrated graphics; a discrete GPU is required for display output.
- Single‑socket only; no dual‑socket upgrade path like some server platforms.
- Overkill for gaming and light productivity; value is hard to realize without professional workloads.
Pros
- 44 cores and 88 threads for heavily parallel workloads
- 112 PCIe 5.0 lanes for multi-GPU and high-speed storage
- 8-channel DDR5-4800 with up to 4 TB capacity
- Intel AMX and AVX-512 for AI and HPC
- Unlocked multiplier for overclocking on W790
- Strong workstation RAS features (ECC, vPro Enterprise, VT-rp)
Cons
- Very high power consumption (340 W base, up to 408 W turbo)
- Expensive CPU and platform (W790 motherboard, 8-channel DDR5)
- No integrated graphics; discrete GPU required
- Outperformed by AMD Threadripper PRO 7000 WX in many multi-threaded workloads
- Limited upgrade path beyond the Xeon W-3500 family on this platform
Competitors & Alternatives
Intel Xeon 658X Processor
- AMD Ryzen Threadripper PRO 7955WXRival
Workstation
- AMD Ryzen Threadripper 7980XRival
HEDT / Workstation
- AMD Ryzen Threadripper PRO 5975WXRival
Workstation
- Compare head-to-headIntel Xeon w7-3545Rival
Workstation
- Compare head-to-headIntel Xeon w9-3595XRival
Workstation
- Intel Xeon 676XAlt
Higher‑core (32C/64T) Xeon 600 SKU if your workloads scale well beyond 24 cores and you can afford the higher TDP and price.
- AMD Ryzen 9 9950XAlt
Mainstream high‑end desktop CPU with strong per‑core performance and lower platform cost, but fewer PCIe lanes and memory channels.
Intel Xeon w9-3575X
- Intel Xeon w9-3475XRival
Workstation
- Intel Xeon w9-3495XRival
Workstation
- Compare head-to-headIntel Xeon w9-3595XRival
Workstation
- AMD Ryzen Threadripper PRO 7975WXRival
Workstation
- AMD Ryzen Threadripper PRO 7995WXRival
Workstation
- Intel Core Ultra 9 285K or similar high-end desktop CPUAlt
Much cheaper and more efficient for gaming and light content creation, but with fewer cores and fewer PCIe lanes; best when you don’t need workstation-class I/O.
Our Verdict on Each
A strong modern workstation CPU with excellent memory and I/O expansion, plus meaningful AI acceleration. Best suited for professionals who can exploit its 24 cores and 8 memory channels; overkill and costly for gaming or light workloads.
Best for: Building a new single‑socket workstation for engineering simulation, 3D rendering, scientific computing, or AI development where you need 24 cores, 8 memory channels, 128 PCIe 5.0 lanes, and AMX acceleration.
Read the full reviewA potent workstation CPU with excellent multi-threaded performance and massive I/O, but high power consumption and cost limit its appeal to users who genuinely need 44 cores and 112 PCIe lanes.
Best for: High-end single-socket workstation for 3D rendering, engineering simulation, or AI inference where you need 44+ cores and 112 PCIe lanes but not the absolute top core count.
Read the full reviewFrequently Asked Questions
Which is faster for gaming, Intel Xeon 658X Processor or Intel Xeon w9-3575X?
For gaming, the Intel Xeon 658X Processor leads with a gaming performance score of 75/100 among Intel Xeon 658X Processor and Intel Xeon w9-3575X.
Which uses less power?
The Intel Xeon 658X Processor has the lowest rated TDP. Power draw across these chips: Intel Xeon 658X Processor (250 W), Intel Xeon w9-3575X (340 W).
Do Intel Xeon 658X Processor and Intel Xeon w9-3575X use the same socket?
No. They use different sockets (Intel Xeon 658X Processor: FCLGA4710, Intel Xeon w9-3575X: FCLGA4677), so each needs a compatible motherboard.
Which has more cores?
The Intel Xeon w9-3575X has the most cores. Core counts: Intel Xeon 658X Processor (24 cores), Intel Xeon w9-3575X (44 cores).
Which is faster in multi-core benchmarks?
The Intel Xeon w9-3575X posts the highest multi-core benchmark score. Multi-core results: Intel Xeon 658X Processor (29,732), Intel Xeon w9-3575X (85,000). Benchmark figures are approximate and workload-dependent.