Family illustration. Credit: Intel Corporation.
Family illustration. Credit: Intel Corporation.
What's the best choice Intel Xeon 676X or Intel Xeon 656? Which processor is faster?
Compare the available specifications of these models.
Intel Xeon 676X has a base frequency of 2.80 GHz. 32 / 64 CPU Cores / Threads. Stated TDP / base power 275 W. Released in Q1/2026.
Intel Xeon 656 has a base frequency of 2.90 GHz. 20 / 40 CPU Cores / Threads. Stated TDP / base power 210 W. Released in Q1/2026.
Reasons to consider More number of cores
12 more cores
20
Higher turbo clock speed
Around 2% higher specified turbo frequency
4.80 GHz
Common positions Intel Xeon 676X CPU in popular benchmarks, for comparison with other models.
No data
Reasons to consider Higher clock speed
Around 4% better clock speed
2.80 GHz
Lower stated TDP / base power
Power limits alone do not measure performance per watt.
275 W
Common positions Intel Xeon 656 CPU in popular benchmarks, for comparison with other models.
No data
Intel Xeon 676X
Background information about the processors being compared, series, generation and market segment.
Intel Xeon 6
Workstation
Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.
2.9 GHz
20
40
4.8 GHz
Types, channel quantity of RAM supported by Intel Xeon 656 and Intel Xeon 676X. Depending on the motherboards, higher or lower memory frequencies may be supported.
Yes
4 TB
8
DDR5 RDIMM-6400
128
Compare the TDP requirements of TDP Intel Xeon 676X and Intel Xeon 656 Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.
210 W
Architecture, interfaces, additional instructions supported by Intel Xeon 676X and Intel Xeon 656, virtual machine technologies and process technology.
72 MB
https://www.intel.com/content/www/us/en/products/sku/244335/intel-xeon-656-processor-72m-cache-2-90-ghz/specifications.html
https://cdrdv2-public.intel.com/874103/Intel%20Xeon%20600%20Processors%20for%20Workstation%20-%20Product%20Brief_Rev1.pdf
Q1/2026
FCLGA4710
2026-09-30
No comparable benchmark results are available yet. Specifications alone do not determine which model is faster.
These are saved results from the earlier catalog. Measurement dates and test configurations were not recorded. Models with no comparable results are omitted.
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