CPU Comparison
Intel Xeon 658X Processor vs Intel Xeon 676X
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 with FP16/BF16/INT8 accelerates inference and light training
- Not a replacement for dedicated GPUs or accelerators on large models
- Well suited for AI development, prototyping, and CPU-bound inference
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.
- High single-core boost up to 4.9 GHz helps keep frame rates smooth
- Not targeted at gamers; few games scale well beyond 16–24 threads
- Better suited as a gaming streaming + workstation hybrid than a pure gaming CPU
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
- 32 P-cores and 64 threads for heavily parallel workloads
- 128 PCIe 5.0 lanes for multi-GPU and storage configurations
- 8-channel DDR5/MRDIMM with up to 4 TB capacity
- Intel AMX with FP16 for improved AI inference
- Unlocked multiplier for overclocking on X-series SKUs
- Strong virtualization and security feature set (vPro, VT-x, VT-d, TME, CET)
Cons
- High power draw (275 W base, up to 330 W turbo)
- Expensive CPU and platform (W890 board, DDR5/MRDIMM)
- Overkill and inefficient for gaming or light tasks
- No integrated graphics, requires discrete GPU
- New platform; early firmware and BIOS maturity may vary
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 676X
- AMD Ryzen Threadripper 9000 WX-SeriesRival
Workstation
- AMD Ryzen Threadripper PRO 9000 WX-SeriesRival
Workstation
- AMD EPYC 9004 (Single-Socket Workstation)Rival
Server / Workstation
- Intel Xeon W-3500 Series (Sapphire Rapids-WS)Rival
Workstation
- Intel Xeon W-2500 Series (Emerald Rapids-WS)Rival
Workstation
Same platform with 28 cores and slightly lower TDP if you don’t need 32 cores.
Compare head-to-head- Intel Xeon 658XAlt
Fewer cores (24) but still full 144 MB L3 and 128 PCIe lanes at lower power.
- AMD Ryzen Threadripper 9980XAlt
Higher multi-threaded performance in many workloads, but different platform and memory ecosystem.
- AMD Ryzen Threadripper PRO 9985WXAlt
More cores and PCIe lanes for bigger workstations, at higher cost and power.
- Intel Core Ultra 9 285KAlt
Better fit if you mainly game and do light content creation, with much lower platform cost.
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 powerful 32-core Granite Rapids-WS workstation CPU with excellent I/O, memory capacity, and AI acceleration, best suited for professional workloads where core count, PCIe lanes, and memory bandwidth matter more than raw gaming performance.
Best for: Professional workstation for rendering, simulation, AI development, or data analytics where you need 32+ cores, 128 PCIe lanes, and 8-channel memory.
Read the full reviewFrequently Asked Questions
Which is faster for gaming, Intel Xeon 658X Processor or Intel Xeon 676X?
For gaming, the Intel Xeon 658X Processor leads with a gaming performance score of 75/100 among Intel Xeon 658X Processor and Intel Xeon 676X.
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 676X (275 W).
Do Intel Xeon 658X Processor and Intel Xeon 676X use the same socket?
Yes — all of these CPUs use the FCLGA4710 socket, so they share compatible motherboards.
Which has more cores?
The Intel Xeon 676X has the most cores. Core counts: Intel Xeon 658X Processor (24 cores), Intel Xeon 676X (32 cores).
Which is faster in multi-core benchmarks?
The Intel Xeon 658X Processor posts the highest multi-core benchmark score. Multi-core results: Intel Xeon 658X Processor (29,732), Intel Xeon 676X (0). Benchmark figures are approximate and workload-dependent.