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Corsair

CM4X16GE2666Z16K4 4x16GB

▲ 500 ▼

Release date ≈ Q1 2019.

Average Bench: 102% (23rd of 132)

Based on 84 user benchmarks.  Model: Corsair CM4X16GE2666Z16K4 4x16GB
Poor: 77%Average: 102% Great: 154%

Popular builds with this RAM

Outstanding average bench

The Corsair CM4X16GE2666Z16K4 4x16GB averaged 2.1% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Corsair CM4X16GE2666Z16K4 4x16GB near the top of the comparison list.

Strengths

Avg. 16 Core Write Bench 44.4GB/s
Avg. 16 Core Read Bench 38.2GB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Corsair CM4X16GE2666Z16K4 4x16GB is 77.4%. This is a particularly wide range which indicates that the Corsair CM4X16GE2666Z16K4 4x16GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 1 Core Read Bench 16.1GB/s
Avg. Physical RAM Latency 80.9ns
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Average Bench

(Based on 84 samples)
Rank 23102%
Min Avg Max
28.7 MC Read 38.2 65.1
26.5 MC Write 44.4 65.3
24.9 MC Mixed 34.7 63.5
112% 39.1 GB/s
Min Avg Max
7.7 SC Read 16.1 26
19.2 SC Write 26.9 38
10.2 SC Mixed 22 33.8
61.8% 21.6 GB/s
Min Avg Max
63.2 Latency 80.9 101
49.4% 80.9 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
4 of 8 slots used
64GB DIMM DDR4 clocked @ 2666 MHz
111% Outstanding
MC Read 37.8
MC Write 59.8
MC Mixed 38.3
129% 45.3 GB/s
SC Read 7.8
SC Write 20.1
SC Mixed 10.7
37% 12.9 GB/s
Latency 94.6
42% 94.6 ns
4 of 4 slots used
64GB DIMM DDR4 clocked @ 2666 MHz
102% Outstanding
MC Read 48.3
MC Write 32.1
MC Mixed 33.2
108% 37.9 GB/s
SC Read 27.6
SC Write 20.2
SC Mixed 34.4
78% 27.4 GB/s
Latency 81.6
49% 81.6 ns
4 of 4 slots used
64GB DIMM DDR4 clocked @ 2666 MHz
88% Excellent
MC Read 30.7
MC Write 35.4
MC Mixed 27.6
89% 31.2 GB/s
SC Read 17.3
SC Write 37.9
SC Mixed 28
79% 27.7 GB/s
Latency 67.7
59% 67.7 ns
4 of 4 slots used
64GB DIMM DDR4 clocked @ 2666 MHz
84.4% Excellent
MC Read 30.1
MC Write 33.1
MC Mixed 26.4
85% 29.9 GB/s
SC Read 17
SC Write 36.9
SC Mixed 25.6
76% 26.5 GB/s
Latency 66.7
60% 66.7 ns
4 of 4 slots used
64GB DIMM DDR4 clocked @ 2666 MHz
81.5% Excellent
MC Read 28.8
MC Write 32.2
MC Mixed 25.8
83% 28.9 GB/s
SC Read 16.1
SC Write 34.5
SC Mixed 25.4
72% 25.3 GB/s
Latency 70.2
57% 70.2 ns
4 of 4 slots used
64GB DIMM DDR4 clocked @ 2666 MHz
78.2% Very good
MC Read 31.8
MC Write 20
MC Mixed 31.7
80% 27.8 GB/s
SC Read 23.9
SC Write 19.3
SC Mixed 33.6
73% 25.6 GB/s
Latency 90.2
44% 90.2 ns
4 of 4 slots used
64GB DIMM DDR4 clocked @ 2100 MHz
73.5% Very good
MC Read 24.8
MC Write 28.7
MC Mixed 24.4
74% 26 GB/s
SC Read 16.5
SC Write 30
SC Mixed 22.2
65% 22.9 GB/s
Latency 73.3
55% 73.3 ns
4 of 4 slots used
64GB DIMM DDR4 clocked @ 2666 MHz
41% Average
MC Read 17.5
MC Write 12.2
MC Mixed 14.1
42% 14.6 GB/s
SC Read 7.8
SC Write 15
SC Mixed 10.4
32% 11.1 GB/s
Latency 106
38% 106 ns
84 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,441,455 RAM Kits 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 CM4X16GE2666Z16K4 4x16GB Builds (Compare 390 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 135%
UFO
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 145%
UFO

System: PC Intel X299

CPU
Core i9-10900XIntelBench 85%, 6,322 samples78x
Core i7-7800XIntel  $206Bench 78%, 22,334 samples65x
Core i7-7820XIntel  $195Bench 80%, 28,524 samples35x
GPU
RTX 2080-TiNvidia  $365Bench 156%, 357,946 samples60x
RTX 3090Nvidia  $1,135Bench 210%, 158,856 samples46x
RTX 2070S (Super)Nvidia  $210Bench 115%, 663,603 samples27x
SSD
970 Evo Plus NVMe PCIe M.2 1TBSamsung  $93Bench 310%, 455,997 samples31x
970 Evo Plus NVMe PCIe M.2 2TBSamsung  $155Bench 336%, 200,600 samples24x
970 Evo NVMe PCIe M.2 1TBSamsung  $150Bench 297%, 331,647 samples21x
RAM
CM4X16GE2666Z16K4 4x16GBCorsairBench 102%, 84 samples15x
EDIT WITH CUSTOM PC BUILDER Value: 105% - Outstanding Total price: $458

Popular CM4X16GE2666Z16K4 4x16GB systems:

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