CPU Comparison
Intel Xeon 6745P vs Intel Xeon 6781P
A side-by-side comparison of specs, performance and value. The Intel Xeon 6745P is a 32-core, 64-thread server and workstation processor based on the Granite Rapids-SP architecture, featuring 336 MB of L3 cache, eight-channel DDR5-6400 memory, and 88 PCIe 5.0 lanes in a 300 W TDP envelope.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- AMX and AVX-512 provide strong CPU-based AI inference
- Best suited for inference and mid-size models when GPUs are not used
- Large memory capacity benefits model serving and data preprocessing
- Intel AMX (Advanced Matrix Extensions) accelerates INT8 and BF16 matrix operations.
- Good for CPU-based inference and training where GPUs are not available.
- For large-scale training, GPUs or dedicated accelerators still dominate.
Content Creation
Gaming
- Server-focused CPU without integrated graphics
- Gaming performance is not a design priority
- Frame rates will be sufficient but not class-leading compared to desktop CPUs
- No integrated graphics; requires a discrete GPU.
- Optimized for server and AI workloads, not gaming clock rates or latency.
- Gamers should choose mainstream desktop or workstation CPUs instead.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 32 cores and 64 threads for high multi-threaded throughput
- 336 MB L3 cache reduces memory latency for large working sets
- Eight-channel DDR5-6400 with up to 4 TB capacity
- 88 PCIe 5.0 lanes for substantial I/O expansion
- AMX and AVX-512 improve AI and HPC performance
- Mature server ecosystem with RAS features (SGX, TDX, QAT, etc.)
Cons
- 300 W TDP requires robust cooling and power delivery
- New LGA4710 platform forces a full server/platform refresh
- High platform cost relative to older Xeon generations
- Locked multiplier limits tuning flexibility
- Efficiency at light loads is not a strength
Pros
- 80 cores and 160 threads for highly parallel workloads.
- 8-channel DDR5/MRDIMM with up to 4 TB memory capacity.
- 136 PCIe 5.0 lanes for GPUs, NVMe, and CXL devices.
- Intel AMX, QAT, DLB, DSA, IAA accelerators for AI and I/O.
- Strong single-socket performance for virtualization and databases.
- CXL 2.0 support on the Xeon 6 platform for memory expansion.
Cons
- High 350 W TDP and demanding power/cooling requirements.
- Premium pricing; overkill for SMB or light server workloads.
- No integrated graphics; not suitable for basic desktop use.
- Locked multiplier; no enthusiast overclocking.
- Platform is new and may have early BIOS/firmware maturity considerations.
Competitors & Alternatives
Intel Xeon 6745P
- Intel Xeon 6730PRival
Server / 32-core Granite Rapids-SP, 250 W TDP
- Compare head-to-headIntel Xeon 6731PRival
Server / 32-core Granite Rapids-SP, 245 W TDP
- AMD EPYC 9354Rival
Server / 32-core Genoa, DDR5-4800, 280 W TDP
- AMD EPYC 9374FRival
Server / 32-core Genoa, higher clocks, 320 W TDP
- AMD EPYC 9354PRival
Server / 32-core Genoa, single-socket optimized variant
Higher core-count (64-core) Granite Rapids-SP SKU when more threads are needed and TDP budget allows.
Compare head-to-head
Intel Xeon 6781P
- AMD EPYC 9565Rival
High-core-count server
- AMD EPYC 9255Rival
Mid-range server / cloud
- Compare head-to-headIntel Xeon 6980PRival
High-end dual-socket Granite Rapids-SP
- Compare head-to-headIntel Xeon 6780ERival
High-density E-core (Sierra Forest)
- Intel Xeon w9-3495XRival
Previous-gen HEDT/workstation
Our Verdict on Each
A powerful 32-core Granite Rapids-SP CPU that excels in memory-bandwidth-sensitive and I/O-heavy server workloads, but its 300 W TDP and platform cost limit it to professional deployments where those features justify the investment.
Best for: Dual-socket servers or workstations running memory-intensive, I/O-heavy workloads such as large databases, virtualization, or AI inference where the 6745P’s cache and memory bandwidth justify the platform cost.
Read the full reviewA very strong single-socket server CPU with excellent core count, memory bandwidth, and integrated AI accelerators, best suited for AI, virtualization, and data-center workloads where its 350 W TDP and platform cost are justified.
Best for: Single-socket servers and workstations for AI inference, virtualization, in-memory databases, or HPC where you need many cores, high memory bandwidth, and strong AI acceleration without going dual-socket.
Read the full reviewFrequently Asked Questions
Which is better, Intel Xeon 6745P or Intel Xeon 6781P?
Based on our editorial ratings, the Intel Xeon 6781P comes out ahead with a score of 8.7/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.
Which uses less power?
The Intel Xeon 6745P has the lowest rated TDP. Power draw across these chips: Intel Xeon 6745P (300 W), Intel Xeon 6781P (350 W).
Do Intel Xeon 6745P and Intel Xeon 6781P use the same socket?
No. They use different sockets (Intel Xeon 6745P: FCLGA4710 (LGA4710), Intel Xeon 6781P: FCLGA4710), so each needs a compatible motherboard.
Which has more cores?
The Intel Xeon 6781P has the most cores. Core counts: Intel Xeon 6745P (32 cores), Intel Xeon 6781P (80 cores).