Intel® Xeon™ 6781P

The Intel Xeon 6781P is a server processor with 80 cores and 160 threads, built on the Granite Rapids architecture (Intel 3 process). It launched in Jan 2025. Clocks run from 2.0 GHz base to 3.8 GHz boost. A 336-MB L3 cache backs the cores (6.3 MB per core). It addresses DDR5 memory up to 4 GB across 8 channels. The chip drops into the FCLGA4710 socket and exposes PCIe 5.0 (136 lanes). Rated TDP is 350 W. Notable platform capabilities: AMX (Advanced Matrix Extensions), AMX, AVX-512, Extended Page Tables (EPT).

The Intel Xeon 6781P scores 3,152 in single-core performance and 117,946 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 19,281 for overall performance, 81,078 for productivity performance, 70,544 for creator performance, 165,124 for engineering performance and 38,943 for gaming performance. Its multi-core throughput works out to 1,474 per core, 737 per thread and 337 per watt. Its computed efficiency index is 1,031. Its performance index is 239, so its overall performance is 139% above the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the Intel Xeon 6781P scores 584,834 in integer math, 507,406 in floating-point math, 2,441,690 in compression, 119,623 in cryptography, 17,753 in physics simulation, 199,048 in vector SIMD, 1,687 in the prime sieve and 268,573 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 893% above in integer math, 1,005% above in floating-point math, 971% above in compression, 941% above in cryptography, 1,529% above in physics simulation, 1,183% above in vector SIMD, 2,418% above in the prime sieve and 1,086% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The Intel Xeon 6781P has 80 physical cores and runs 160 logical threads. It runs 2 threads per core. It runs at a base clock of 2.00 GHz and boosts up to 3.80 GHz.

The Intel Xeon 6781P is a server processor, belongs to the Intel Xeon 6 family, uses the Granite Rapids architecture, carries the codename Granite Rapids and is manufactured on a Intel 3 process. It launched in Jan 2025.

The Intel Xeon 6781P has 8.75 MB of L1 cache, 160 MB of L2 cache and 336 MB of L3 cache. That adds up to about 504.8 MB of cache, or 6.31 MB per core. Each core has 2 MB of private L2 cache.

The Intel Xeon 6781P has a 3-level cache hierarchy: L1 at 8.8 MB, L2 at 160 MB and L3 at 336 MB. L3 is the largest level and makes up about 67% of the cache listed here.

The Intel Xeon 6781P supports DDR5 memory, addresses up to 4 GB of memory and uses 8 memory channels. It does not support DDR4 and LPDDR memory. It supports ECC memory.

The Intel Xeon 6781P does not include integrated graphics, so a discrete graphics card is required for display output.

The Intel Xeon 6781P uses the FCLGA4710 socket, supports PCI Express 5.0 and provides up to 136 PCIe lanes.

The Intel Xeon 6781P has a rated TDP of 350 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Xeon 6781P is manufactured by Intel. It launched at a price of $10,035.

The Intel Xeon 6781P is also identified by the model number 6781P and the processor number 6781P.

Feex has recorded 60% of the specifications it tracks for the Intel Xeon 6781P. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth and Max Memory Speed. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: SKU and Part Number.

Processors that use the same FCLGA4710 socket as the Intel Xeon 6781P and have the closest multi-core scores in the Feex database include Intel Xeon 6774P, Intel Xeon 696X, Intel Xeon 6747P, Intel Xeon 6741P and Intel Xeon 678X.