Intel Xeon E5-2666 v3

Intel Xeon E5-2666 v3 Benchmark and Specs

Intel Xeon E5-2666 v3 Processor benchmark and specs - 3 GHz 10 core Intel CPU rating. Is the Xeon E5-2666 v3 good for gaming?

Benchmark Score

52 %
Very Good score from 1 sample
High uncertainty
Very Good
197th of 1,255
345th of 1,255
1 benchmarks

CPU benchmarks

Here are the performance results of this CPU in both the hardwareDB Benchmark and other benchmark utilities. Synthetic tests are an estimation of real-world performance using consistent and repeatable benchmarks.


Very Good

52 %


Very Good

58 %


Very Good

50 %

Heavy Workloads

Very Good

49 %

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Alternative benchmarks

Here are some benchmark results using alternative testing software



Cycles Render (Samples per minute)


Compare these benchmarks and specs using our CPU Comparison Tool

Quick compare

Search for a CPU to compare against or choose a popular comparison below.

CPU Comparison

The Intel Xeon E5-2666 v3 compared against popular alternatives. Compare against more CPUs with our CPU Comparison Tool.

Intel Xeon E5-2690 v3
63 %
AMD Ryzen 5 5600
62 %
AMD Ryzen 5 5600X
61 %
Intel Xeon E5-2670 v3
55 %
Intel Xeon E5-2666 v3
52 %
Intel Xeon E5-2673 v3
50 %
Intel Core i5-10400F
49 %


Clock Speed 2.9 GHz
Cores 10
Threads 20
L2 Cache 2560 KiB
L3 Cache 25 MiB

Intel Xeon E5-2666 v3

The Xeon E5-2666 v3 is a 10 core CPU from Intel. This chip has a very good overall score at 52% in our CPU benchmark. Our gaming benchmark shows that this CPU is a very good processor for gaming, with a score of 58%. As for multitasking and heavy workloads, the Xeon E5-2666 v3 scores 50% and 49% respectively. Indeed, this is a very good rating for very heavy workloads.

The Xeon E5-2666 v3 has 10 cores and 20 threads. This CPU makes use of simultaneous multithreading technology to improve performance on parallel tasks. Each physical CPU core is divided into multiple logical processors. This Intel CPU has a clock speed of 2.9 GHz.

In terms of cache, the Xeon E5-2666 v3 has 2 MiB of level 2 cache and 25 MiB of level 3 cache. This is a fast memory located close to the processor, which stores copies of frequently used data from main memory.

To figure out your PCs processor specs and performance, download our free CPU Benchmark utility.


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