Intel Xeon 656
Intel Xeon 656 specifications and PassMark benchmark data: 3,826 single-core score, 64,897 multicore score, FCLGA4710 socket, 20 cores.
Compare- Class
- Server
- Socket
- FCLGA4710
- Base clock
- 2.9 GHz
- Turbo clock
- 4.8 GHz
- Cores
- 20
- Threads
- 40
- Typical TDP
- 210 W
- Release / first seen
- Q3 2026
- L1 Instruction Cache
- 20 x 64 KB
- L1 Data Cache
- 20 x 48 KB
- L2 Cache
- 20 x 2048 KB
- L3 Cache
- 72 MB
- TDP Up
- 252 W
- Memory Support
- Max. Memory Size: 4.0 TB (DDR5(6400MT/s), ECC Supported)
Understanding Intel Xeon 656
PassMark single-core and multicore scores describe different workloads. Compare each score with the same benchmark on another processor. A higher multicore score does not mean every application or game will run proportionally faster. Device cooling, memory and power settings also affect performance.
Will Intel Xeon 656 work with my motherboard?
The source lists FCLGA4710 as the socket. Check the exact motherboard model and revision on its manufacturer's CPU support list, including the minimum BIOS version. A socket match alone does not establish compatibility. Include a new motherboard, memory and cooling in your budget when the platform changes.
Other names listed by the benchmark source: Intel(R) Xeon(R) 656.
How our benchmarks and CPU recommendations workIntel Xeon 656 comparisons
Head-to-head pages against processors in the same performance range.
Sources and data freshness
- Intel Xeon 656 on PassMark CPU Benchmarks. Data retrieved .
The retrieval date records when Find Me a CPU collected the source data. It is not a benchmark test date. Prices are USD estimates from the source, converted for other currencies, rather than live retailer offers. Release / first seen means the CPU first appeared on PassMark charts, not necessarily its launch date.
Benchmark scores do not predict frame rates in a particular game. Typical TDP is a specification, not measured electricity use. A matching socket does not confirm motherboard support; check the manufacturer's CPU support list and BIOS requirements.
How our data and recommendations work