TEST
YOUR CPU
ADD TO PC
BUILD

Intel

Xeon E5-2666 v3

▲ 505 ▼

Release date ≈ Q2 2019.

Average Bench: 72.9% (343rd of 1441)

Based on 1,745 user benchmarks.  Device: BFEBFBFF000306F2 Model: Intel(R) Xeon(R) CPU E5-2666 v3 @ 2.90GHz
Poor: 66%Average: 72.9% Great: 79%
Gaming
Gaming 73%
Battleship
Desktop
Desktop 73%
Battleship
Workstation
Workstation 73%
Battleship

Popular builds with this CPU

Good average bench

The Intel Xeon E5-2666 v3 averaged 27.1% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. Memory Latency 79.4Pts
Avg. Multi Core Speed 1,157Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Xeon E5-2666 v3 is just 12.7%. This is a relatively narrow range which indicates that the Intel Xeon E5-2666 v3 performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Octa Core Speed 693Pts
Avg. Dual Core Speed 178Pts
ADVERTISEMENT

Average Bench

(Based on 1,745 samples)
Rank 34372.9%
Min Avg Max
72.9 Memory 79.4 88
75.3 1-Core 89.9 99.5
152 2-Core 178 198
67% 116 Pts
Min Avg Max
308 4-Core 357 394
552 8-Core 693 785
62.2% 525 Pts
Min Avg Max
904 64-Core 1,157 1,294
71.6% 1,157 Pts
User Benchmarks BenchNormalHeavyServer
The fastest CPU (mainstream) averages a speed of 100%
SOCKET 0, 1 CPU, 10 cores, 20 threads
Base clock 2.9 GHz, turbo 2.95 GHz (avg)
78.5% Very good
Memory 90.8
1-Core 86
2-Core 184
71% 120 Pts
4-Core 357
8-Core 732
64% 544 Pts
64-Core 1,311
81% 1,311 Pts
SOCKET 0, 1 CPU, 10 cores, 20 threads
Base clock 2.9 GHz, turbo 3.5 GHz (avg)
77.1% Very good
Memory 82.8
1-Core 98.2
2-Core 196
72% 126 Pts
4-Core 383
8-Core 770
68% 577 Pts
64-Core 1,316
82% 1,316 Pts
SOCKET 0, 1 CPU, 10 cores, 20 threads
Base clock 2.9 GHz, turbo 3 GHz (avg)
76.5% Very good
Memory 82.7
1-Core 98
2-Core 195
72% 125 Pts
4-Core 378
8-Core 766
67% 572 Pts
64-Core 1,290
80% 1,290 Pts
SOCKET 0, 1 CPU, 10 cores, 20 threads
Base clock 2.9 GHz, turbo 3.5 GHz (avg)
75.7% Very good
Memory 79.9
1-Core 97.7
2-Core 196
71% 124 Pts
4-Core 384
8-Core 738
67% 561 Pts
64-Core 1,310
81% 1,310 Pts
SOCKET 0, 1 CPU, 8 cores, 16 threads
Base clock 2.9 GHz, turbo 3 GHz (avg)
73.8% Very good
Memory 84.7
1-Core 92.7
2-Core 176
69% 118 Pts
4-Core 339
8-Core 586
56% 463 Pts
64-Core 789
49% 789 Pts
SOCKET 0, 1 CPU, 10 cores, 20 threads
Base clock 2.9 GHz, turbo 2.8 GHz (avg)
73.5% Very good
Memory 83.5
1-Core 91.9
2-Core 173
68% 116 Pts
4-Core 341
8-Core 686
60% 513 Pts
64-Core 1,192
74% 1,192 Pts
SOCKET 0, 1 CPU, 10 cores, 20 threads
Base clock 2.9 GHz, turbo 2.85 GHz (avg)
72.2% Very good
Memory 83.1
1-Core 83.2
2-Core 159
65% 108 Pts
4-Core 330
8-Core 660
58% 495 Pts
64-Core 1155
72% 1155 Pts
SOCKET 0, 1 CPU, 10 cores, 20 threads
Base clock 2.9 GHz, turbo 3.2 GHz (avg)
71.2% Very good
Memory 76.1
1-Core 88.8
2-Core 179
66% 115 Pts
4-Core 356
8-Core 708
63% 532 Pts
64-Core 1,190
74% 1,190 Pts
SOCKET 0, 1 CPU, 10 cores, 20 threads
Base clock 2.9 GHz, turbo 3.15 GHz (avg)
67.7% Good
Memory 76.6
1-Core 87.1
2-Core 167
64% 110 Pts
4-Core 317
8-Core 568
53% 443 Pts
64-Core 1,151
71% 1,151 Pts
1,745 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,707,608 CPUs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical Xeon E5-2666 v3 Builds (Compare 14,486 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 27%
Raft
Desktop
Desktop 76%
Battleship
Workstation
Workstation 27%
Raft

System: Default string

CPU
Xeon E5-2666 v3IntelBench 73%, 1,745 samples1x
GPU
GTX 1050-TiNvidia  $59Bench 29%, 946,701 samples485x
UHD Graphics 600IntelBench 1%, 35,976 samples478x
GTX 1660S (Super)Nvidia  $240Bench 71%, 428,800 samples457x
SSD
A400 240GBKingston  $28Bench 66%, 424,288 samples331x
A400 480GBKingston  $38Bench 74%, 237,487 samples171x
A400 120GBKingston  $32Bench 61%, 166,392 samples150x
RAM
2x8GBUnknownBench 64%, 236,291 samples1,363x
Atermiter 2x8GBUnknownBench 59%, 2,316 samples486x
123456789012345678 4x2GBABCDBench 24%, 5,869 samples354x
EDIT WITH CUSTOM PC BUILDER Value: 87% - Excellent Total price: $87

Popular Xeon E5-2666 v3 systems:

How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

UserBenchmark of the month

Gaming Desktop ProGaming

How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware
Processor Rankings (Price vs Performance) April 2024 CPU Rankings

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

ADVERTISEMENT

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

Added n/a ago.
TenguZ
Avatar level
8

Excellent

13 months ago.

10 cores @3.5Ghz for around ~$30. Has similar IPC to ryzen 2000 series

Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 4 years

Speed Comparisons

vs Intel Core i5-13600K
vs Intel Core i5-12400F
vs Intel Core i5-12600K
vs Intel Core i3-12100F
vs Intel Core i7-13700K
vs Intel Core i9-13900K
vs AMD Ryzen 5 3600
vs AMD Ryzen 5 5600X
vs Intel Core i7-11700K

1441 Processors (Compared) Thousands of user benchmarks compiled into one comparison list

See how consistently different CPUs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

Processors FAQ
AMD vs Intel: Gaming performance 2012-2021
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
If you make a purchase via one of these links, our site may earn a commission
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback