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1st

CPU: Intel Xeon E5-2666 v3

▲ 500 ▼

Release date ≈ Q1 2019.

Average Bench: 70.2% (396th of 1442)

Based on 58 user benchmarks.  Device: BFEBFBFF000306F2 Model: 1st CPU: Intel(R) Xeon(R) CPU E5-2666 v3 @ 2.90GHz
Poor: 58%Average: 70.2% Great: 77%
Gaming
Gaming 70%
Battleship
Desktop
Desktop 70%
Battleship
Workstation
Workstation 90%
Nuclear submarine

Popular builds with this CPU

Good average bench

The 1st CPU: Intel Xeon E5-2666 v3 averaged 29.7% 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. Multi Core Speed 2,308Pts
Avg. Memory Latency 74.4Pts

Very good consistency

The range of scores (95th - 5th percentile) for the 1st CPU: Intel Xeon E5-2666 v3 is just 18.7%. This is a relatively narrow range which indicates that the 1st CPU: Intel Xeon E5-2666 v3 performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Octa Core Speed 707Pts
Avg. Dual Core Speed 180Pts
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Average Bench

(Based on 58 samples)
Rank 39670.2%
Min Avg Max
55.4 Memory 74.4 84.2
68.1 1-Core 90.8 104
151 2-Core 180 206
65.8% 115 Pts
Min Avg Max
306 4-Core 355 399
614 8-Core 707 775
62.6% 531 Pts
Min Avg Max
1,366 64-Core 2,308 2,612
143% 2,308 Pts
User Benchmarks BenchNormalHeavyServer
The fastest CPU (mainstream) averages a speed of 100%
SOCKET 0, 2 CPU, 20 cores, 40 threads
Base clock 2.9 GHz, turbo 2.75 GHz (avg)
76.1% Very good
Memory 83.3
1-Core 96.7
2-Core 190
71% 123 Pts
4-Core 371
8-Core 746
66% 559 Pts
64-Core 2,523
156% 2,523 Pts
SOCKET 0, 2 CPU, 20 cores, 40 threads
Base clock 2.9 GHz, turbo 3.45 GHz (avg)
71.7% Very good
Memory 76
1-Core 94.2
2-Core 176
67% 115 Pts
4-Core 362
8-Core 739
65% 551 Pts
64-Core 2,557
158% 2,557 Pts
SOCKET 0, 2 CPU, 20 cores, 40 threads
Base clock 2.9 GHz, turbo 3.05 GHz (avg)
70.5% Very good
Memory 80.2
1-Core 80.6
2-Core 166
64% 109 Pts
4-Core 327
8-Core 664
58% 495 Pts
64-Core 2,389
148% 2,389 Pts
SOCKET 0, 2 CPU, 20 cores, 40 threads
Base clock 2.9 GHz, turbo 2.75 GHz (avg)
66.2% Good
Memory 68
1-Core 93.5
2-Core 165
62% 109 Pts
4-Core 345
8-Core 704
62% 525 Pts
64-Core 2,308
143% 2,308 Pts
SOCKET 0, 2 CPU, 20 cores, 40 threads
Base clock 2.9 GHz, turbo 3.25 GHz (avg)
65.9% Good
Memory 67.8
1-Core 94.6
2-Core 177
64% 113 Pts
4-Core 343
8-Core 675
60% 509 Pts
64-Core 2,325
144% 2,325 Pts
SOCKET 0, 2 CPU, 20 cores, 40 threads
Base clock 2.9 GHz, turbo 2.65 GHz (avg)
64.9% Good
Memory 70
1-Core 71.4
2-Core 157
57% 99.5 Pts
4-Core 321
8-Core 701
59% 511 Pts
64-Core 2,301
142% 2,301 Pts
SOCKET 1, 2 CPU, 20 cores, 40 threads
Base clock 2.9 GHz, turbo 3.15 GHz (avg)
62.7% Good
Memory 61.7
1-Core 85.2
2-Core 176
60% 108 Pts
4-Core 342
8-Core 663
60% 503 Pts
64-Core 2,284
141% 2,284 Pts
SOCKET 1, 2 CPU, 20 cores, 40 threads
Base clock 2.9 GHz, turbo 3.2 GHz (avg)
59% Above average
Memory 53.7
1-Core 83.5
2-Core 166
56% 101 Pts
4-Core 344
8-Core 672
60% 508 Pts
64-Core 2,338
145% 2,338 Pts
SOCKET 1, 2 CPU, 20 cores, 40 threads
Base clock 2.9 GHz, turbo 1.2 GHz (avg)
37.7% Below average
Memory 53.2
1-Core 30.8
2-Core 60.6
32% 48.2 Pts
4-Core 120
8-Core 243
21% 182 Pts
64-Core 842
52% 842 Pts
58 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,748,935 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 CPU: Intel Xeon E5-2666 v3 Builds (Compare 2,268 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 41%
Speed boat
Desktop
Desktop 78%
Battleship
Workstation
Workstation 51%
Yacht

Motherboard: Intel X99

CPU
CPU: Intel Xeon E5-2666 v31stBench 70%, 58 samples1x
GPU
RX 580AMD  $130Bench 52%, 360,351 samples138x
RTX 3060Nvidia  $274Bench 100%, 447,556 samples116x
GTX 1070Nvidia  $132Bench 80%, 1,459,281 samples97x
SSD
SNV2S1000G 1TBKingstonBench 260%, 75,739 samples45x
NE-256 256GBBench 159%, 6,044 samples45x
A400 240GBKingston  $28Bench 66%, 424,288 samples37x
RAM
Atermiter 2x8GBUnknownBench 59%, 2,316 samples229x
2x8GBUnknownBench 64%, 236,291 samples133x
Atermiter 2x16GBUnknownBench 65%, 839 samples88x
EDIT WITH CUSTOM PC BUILDER Value: 94% - Outstanding Total price: $130

Popular CPU: Intel Xeon E5-2666 v3 compatible motherboards:

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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]

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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.

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Speed Comparisons

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1442 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

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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair 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
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