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[Dual CPU] Intel Xeon E5-2666 v3 @ 2.90GHz

Benchmarks for the [Dual CPU] Intel Xeon E5-2666 v3 can be found below. Release dates, price and performance comparisons are also listed when available. This is made using thousands of PerformanceTest benchmark results and is updated daily.

  • The first graph shows the relative performance of the CPU compared to the 10 other common (single) CPUs in terms of PassMark CPU Mark.
  • The 2nd graph shows the value for money, in terms of the CPUMark per dollar.
  • The pricing history data shows the price for a single Processor. For multiple Processors, multiply the price shown by the number of CPUs.

[Dual CPU] Intel Xeon E5-2666 v3 @ 2.90GHz

Description:

Class: Server

Socket: LGA2011-v3

Clockspeed: 2.9 GHz

Turbo Speed: 3.5 GHz

Cores: 10# Threads: 20#

Typical TDP: 135 W#

Cache per CPU Package:
L1 Instruction Cache: 10 x 32 KB
L1 Data Cache: 10 x 32 KB
L2 Cache: 10 x 256 KB
L3 Cache: 25 MB

Other names: Intel(R) Xeon(R) CPU E5-2666 v3 @ 2.90GHz, Intel Xeon CPU E5-2666 v3 @ 2.90GHz

CPU First Seen on Charts: Q1 2015

CPUmark/$Price: NA

Overall Rank:
430th fastest in multithreading out of all multi-CPU CPUs

Last Price Change: NA

Average CPU Mark rating
Multithread Rating
23281
Single Thread Rating
1901

Samples: 77*
*Margin for error: Low

#The number of cores/threads and TDP is per CPU. To determine the total, multiply by the total CPU count.

CPU Test Suite Average Results for [Dual CPU] Intel Xeon E5-2666 v3 @ 2.90GHz

Integer Math111,581 MOps/Sec
Floating Point Math56,050 MOps/Sec
Find Prime Numbers92 Million Primes/Sec
Random String Sorting60,035 Thousand Strings/Sec
Data Encryption7,151 MBytes/Sec
Data Compression457,455 KBytes/Sec
Physics1,112 Frames/Sec
Extended Instructions29,029 Million Matrices/Sec
Single Thread1,901 MOps/Sec
From submitted results to PerformanceTest V10 as of 6th of October 2026.

CPU Mark Distribution for [Dual CPU] Intel Xeon E5-2666 v3 @ 2.90GHz

Submitted Baseline Distribution Graph as of 3rd of October 2026
From submitted results since PerformanceTest V10 as of 3rd of October 2026.
For distribution graph only: Results are trimmed to exclude outliers by disregarding the bottom 1% and top 1% of submissions.

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CPU Mark Relative to Top 10 Common Server CPUs
As of 6th of October 2026 - Higher results represent better performance
Processor Average CPU Mark
ARM Neoverse-N1 128 Core 3000 MHz
 39,780
AMD Ryzen 7 PRO 7745
 34,818
ARM Neoverse-N1 80 Core 3000 MHz
 34,745
AMD Ryzen 7 PRO 8845HS
 28,602
AMD Ryzen 5 PRO 7645
 27,564
[Dual CPU] Intel Xeon E5-2666 v3 @ 2.90GHz
 23,281
Intel Xeon E5-2690 v4 @ 2.60GHz
 19,158
Intel Xeon E5-2680 v4 @ 2.40GHz
 17,107
Intel Xeon E5-2697 v2 @ 2.70GHz
 14,247
Hygon C86-3G (OPN:3350)
 11,739
Intel Xeon E5-1650 v4 @ 3.60GHz
 11,274
CPU Value (CPU Mark / $Price )
As of 6th of October 2026 - Higher results represent better value
Processor CPU Mark / $Price
Intel Xeon E5-2680 v4 @ 2.40GHz
 80.71
Intel Xeon E5-2697 v2 @ 2.70GHz
 73.65
AMD Ryzen 5 PRO 7645
 61.71
AMD Ryzen 7 PRO 7745
 57.59
Intel Xeon E5-1650 v4 @ 3.60GHz
 26.22
[Dual CPU] Intel Xeon E5-2666 v3 @ 2.90GHz
 NA
ARM Neoverse-N1 80 Core 3000 MHz
 NA
Hygon C86-3G (OPN:3350)
 NA
ARM Neoverse-N1 128 Core 3000 MHz
 NA
AMD Ryzen 7 PRO 8845HS
 NA
Intel Xeon E5-2690 v4 @ 2.60GHz
 NA
Single Thread Rating
As of 6th of October 2026 - Higher results represent better performance
Processor Average Thread Rating
AMD Ryzen 7 PRO 7745
 4,117
AMD Ryzen 5 PRO 7645
 3,954
AMD Ryzen 7 PRO 8845HS
 3,764
Intel Xeon E5-1650 v4 @ 3.60GHz
 2,358
Intel Xeon E5-2690 v4 @ 2.60GHz
 2,067
Intel Xeon E5-2680 v4 @ 2.40GHz
 1,929
[Dual CPU] Intel Xeon E5-2666 v3 @ 2.90GHz
 1,901
Intel Xeon E5-2697 v2 @ 2.70GHz
 1,782
Hygon C86-3G (OPN:3350)
 1,720
ARM Neoverse-N1 128 Core 3000 MHz
 1,329
ARM Neoverse-N1 80 Core 3000 MHz
 1,326
Last 5 Baselines for [Dual CPU] Intel Xeon E5-2666 v3 @ 2.90GHz
Most recent listed first
Baseline CPU Mark
BL3431222 - Apr 24 2026
21675
BL3350740 - Mar 15 2026
20924
BL3320833 - Mar 02 2026
19799
BL3302521 - Feb 21 2026
24836
BL3232158 - Jan 22 2026 [Excluded]
23530
Additional baselines can be obtained using Windows version of PerformanceTest's Manage Baselines feature.
Popular comparisons for Intel Xeon E5-2666 v3 @ 2.90GHz
As of 6th of October 2026 - Higher results represent better performance
Processor Average CPU Mark
Intel Xeon E5-2666 v3 @ 2.90GHz
 23,281
Intel Xeon E5-2697 v3 @ 2.60GHz vs Intel Xeon E5-2666 v3
 18,162 (-22.0%)
AMD Ryzen 7 PRO 8845HS vs Intel Xeon E5-2666 v3
 28,602 (+22.9%)
AMD Ryzen 7 PRO 8840U vs Intel Xeon E5-2666 v3
 23,863 (+2.5%)
AMD Ryzen 5 PRO 7645 vs Intel Xeon E5-2666 v3
 27,564 (+18.4%)
Intel Xeon W-2255 @ 3.70GHz vs Intel Xeon E5-2666 v3
 22,611 (-2.9%)
Intel Xeon E5-2696 v3 @ 2.30GHz vs Intel Xeon E5-2666 v3
 21,165 (-9.1%)
Intel Xeon W-2155 @ 3.30GHz vs Intel Xeon E5-2666 v3
 20,620 (-11.4%)
AMD EPYC 7262 vs Intel Xeon E5-2666 v3
 20,492 (-12.0%)
Intel Xeon W-2150B @ 3.00GHz vs Intel Xeon E5-2666 v3
 20,409 (-12.3%)
Intel Xeon E5-2699 v3 @ 2.30GHz vs Intel Xeon E5-2666 v3
 20,039 (-13.9%)
Intel Xeon E5-2698 v3 @ 2.30GHz vs Intel Xeon E5-2666 v3
 18,846 (-19.0%)
Intel Xeon E5-2687W v4 @ 3.00GHz vs Intel Xeon E5-2666 v3
 17,843 (-23.4%)