CPU Comparison
Intel Xeon 6781P vs Intel Xeon 6978P
A side-by-side comparison of specs, performance and value. The Intel Xeon 6781P is an 80-core, 160-thread server and workstation processor based on Intel’s Granite Rapids-SP architecture, built on the Intel 3 process and targeting high-core-count, AI-accelerated workloads in single-socket platforms.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- 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.
- Supports Intel AMX, DL Boost, and AVX‑512 for CPU‑based AI inference
- No integrated AI accelerator beyond CPU instructions
- Best used as a host CPU for discrete AI accelerators
Content Creation
Gaming
- 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.
- No integrated graphics
- Server platform, not validated for gaming
- Client‑side gaming not a target use case
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
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.
Pros
- Very high core count (120 cores / 240 threads)
- 12 memory channels with DDR5 and MRDIMM support
- 96 PCIe 5.0 lanes for I/O‑heavy server designs
- Intel 3 process improves density and efficiency
- Strong platform for in‑memory databases and virtualization
Cons
- 500 W TDP requires robust cooling and power delivery
- Expensive and typically sold only through OEM channels
- Performance per core is modest compared to lower‑core Xeons
- Limited use outside large server deployments
- No integrated graphics or client‑side validation
Competitors & Alternatives
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
Intel Xeon 6978P
- AMD EPYC 9554Rival
Server (64‑core, SP5)
- AMD EPYC 9654Rival
Server (96‑core, SP5)
- Compare head-to-headIntel Xeon 6980PRival
Server (128‑core, Granite Rapids‑AP)
- Intel Xeon Platinum 8490HRival
Server (60‑core, Sapphire Rapids)
- AmpereOne A192‑32Rival
Cloud‑Native ARM Server (192‑core)
Lower core count (64) with higher per‑core frequency, better for workloads that don’t scale beyond ~64 threads.
Compare head-to-head- ARM‑based AmpereOne or Graviton3Alt
Cloud‑native ARM alternatives for scale‑out workloads where software is optimized for ARM and power efficiency is critical.
Our Verdict on Each
A 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 reviewAn extremely capable dual‑socket server CPU with best‑in‑class core count and memory bandwidth for its generation, best suited for organizations that can utilize its 120 cores and 12 memory channels rather than treating it as a general‑purpose compute node.
Best for: Dual‑socket servers running memory‑intensive, highly parallel workloads such as large in‑memory databases, virtualization, or HPC where core count and memory bandwidth are the primary bottlenecks.
Read the full reviewFrequently Asked Questions
Which is better, Intel Xeon 6781P or Intel Xeon 6978P?
Based on our editorial ratings, the Intel Xeon 6978P comes out ahead with a score of 8.8/10. 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 6781P has the lowest rated TDP. Power draw across these chips: Intel Xeon 6781P (350 W), Intel Xeon 6978P (500 W).
Do Intel Xeon 6781P and Intel Xeon 6978P use the same socket?
No. They use different sockets (Intel Xeon 6781P: FCLGA4710, Intel Xeon 6978P: FCLGA7529), so each needs a compatible motherboard.
Which has more cores?
The Intel Xeon 6978P has the most cores. Core counts: Intel Xeon 6781P (80 cores), Intel Xeon 6978P (120 cores).