TEST
YOUR RAM
ADD TO PC
BUILD

Samsung

M391A1K43DB2-CWE 2x8GB

▲ 500 ▼

Release date ≈ Q1 2022.

Average Bench: 84.4% (53rd of 131)

Based on 15 user benchmarks.  Model: Samsung M391A1K43DB2-CWE 2x8GB
Poor: 48%Average: 84.4% Great: 104%

Popular builds with this RAM

Very good average bench

The Samsung M391A1K43DB2-CWE 2x8GB averaged just 15.5% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung M391A1K43DB2-CWE 2x8GB near the top of the comparison list.

Strengths

Avg. 16 Core Write Bench 33.1GB/s
Avg. 16 Core Read Bench 32.3GB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung M391A1K43DB2-CWE 2x8GB is 56.3%. This is a relatively wide range which indicates that the Samsung M391A1K43DB2-CWE 2x8GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Physical RAM Latency 103ns
Avg. 1 Core Read Bench 16.7GB/s
ADVERTISEMENT

Average Bench

(Based on 15 samples)
Rank 5384.4%
Min Avg Max
15.1 MC Read 32.3 42
13.9 MC Write 33.1 41.6
12.1 MC Mixed 27.5 35.5
88.5% 31 GB/s
Min Avg Max
5.5 SC Read 16.7 27
9.7 SC Write 30.8 42.3
6.7 SC Mixed 23 31.9
67.2% 23.5 GB/s
Min Avg Max
59.6 Latency 103 250
39% 103 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
2 of 4 slots used
16GB DIMM DDR4 clocked @ 3200 MHz
106% Outstanding
MC Read 41.4
MC Write 40.5
MC Mixed 35.5
112% 39.1 GB/s
SC Read 20.6
SC Write 40.3
SC Mixed 28.6
85% 29.8 GB/s
Latency 85.8
47% 85.8 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 3200 MHz
101% Outstanding
MC Read 37.9
MC Write 41.6
MC Mixed 28.5
103% 36 GB/s
SC Read 19.1
SC Write 42.3
SC Mixed 29.5
87% 30.3 GB/s
Latency 59.6
67% 59.6 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 3200 MHz
98.1% Outstanding
MC Read 38
MC Write 37.1
MC Mixed 33.9
104% 36.3 GB/s
SC Read 20.2
SC Write 38.5
SC Mixed 25.6
80% 28.1 GB/s
Latency 107
38% 107 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 3200 MHz
94.1% Outstanding
MC Read 36.2
MC Write 34.9
MC Mixed 32.9
99% 34.7 GB/s
SC Read 19.6
SC Write 34.7
SC Mixed 26.1
77% 26.8 GB/s
Latency 91.4
44% 91.4 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 3200 MHz
91.7% Outstanding
MC Read 34.1
MC Write 37.6
MC Mixed 33
100% 34.9 GB/s
SC Read 15.5
SC Write 27.6
SC Mixed 21
61% 21.4 GB/s
Latency 104
38% 104 ns
2 of 4 slots used
16GB DIMM DDR4 3200 MHz clocked @ 2667 MHz
83.6% Excellent
MC Read 30.2
MC Write 32.9
MC Mixed 25.7
85% 29.6 GB/s
SC Read 17.7
SC Write 32.5
SC Mixed 26.1
73% 25.4 GB/s
Latency 62.7
64% 62.7 ns
2 of 2 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
70.8% Very good
MC Read 28.7
MC Write 25.5
MC Mixed 21.3
72% 25.2 GB/s
SC Read 14.4
SC Write 24.9
SC Mixed 22.3
59% 20.5 GB/s
Latency 69.7
57% 69.7 ns
2 of 4 slots used
16GB DIMM DDR4 3200 MHz clocked @ 2400 MHz
47.7% Average
MC Read 19.1
MC Write 21.5
MC Mixed 16.4
54% 19 GB/s
SC Read 5.5
SC Write 9.7
SC Mixed 8
22% 7.73 GB/s
Latency 250
16% 250 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
36.5% Below average
MC Read 15.1
MC Write 13.9
MC Mixed 12.1
39% 13.7 GB/s
SC Read 6.1
SC Write 13.6
SC Mixed 6.7
25% 8.8 GB/s
Latency 213
19% 213 ns
15 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,377,237 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 M391A1K43DB2-CWE 2x8GB Builds (Compare 3,011 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 12%
Tree trunk
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 11%
Tree trunk

System: HP EliteDesk 800 G2 SFF

CPU
Core i5-6500Intel  $60Bench 64%, 241,476 samples1,704x
Core i7-6700Intel  $170Bench 72%, 282,363 samples836x
Core i5-6600Intel  $124Bench 68%, 80,688 samples230x
GPU
HD 530 (Desktop Skylake)IntelBench 5%, 188,220 samples1,806x
GT 1030NvidiaBench 14%, 185,384 samples216x
GeForce GT 730NvidiaBench 5%, 164,888 samples168x
SSD
A400 240GBKingston  $28Bench 66%, 424,288 samples106x
860 Evo 250GBSamsung  $45Bench 104%, 296,814 samples66x
A400 480GBKingston  $38Bench 74%, 237,487 samples64x
RAM
M391A1K43DB2-CWE 2x8GBSamsungBench 84%, 15 samples1x
EDIT WITH CUSTOM PC BUILDER Value: 73% - Very good Total price: $88

Popular M391A1K43DB2-CWE 2x8GB systems:

How Fast Is Your RAM? (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
Memory Kit Rankings (Price vs Performance) June 2024 RAM Rankings

We calculate effective RAM speed which measures performance for typical desktop users. Effective speed is adjusted by current cost per GB to yield value for money. 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 Memory Kits. [RAMPro]

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.
Your
opinion?
▲Like ▼Dislike
Over the hill
Age: 2 years

Speed Comparisons

vs Corsair Vengeance LPX DDR4 3200 C16 2x8GB
vs Corsair Vengeance LPX DDR4 3000 C15 2x8GB
vs G.SKILL Trident Z DDR4 3200 C14 4x16GB
vs G.SKILL Trident Z DDR4 3600 C16 2x8GB
vs HyperX Fury DDR4 2133 C14 2x8GB
vs Corsair Vengeance LPX DDR4 2666 C16 2x8GB
vs G.SKILL Ripjaws 4 DDR4 2400 C14 8x16GB
vs Corsair Vengeance LPX DDR4 2133 C13 2x8GB
vs G.SKILL Trident Z DDR4 3200 C16 2x8GB

131 Memory Kits (Compared) Thousands of user benchmarks compiled into one comparison list

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

 Frequently Asked Questions

Computer Components FAQ
What is the UBM value for money rating?
What is UBM Effective Speed?
Thunderbolt speed?
Are USB 3.0 cables different?
USB 3.0 vs 2.0 speed difference?
Why buy USB 3.0 today?
USB 3.0 / 4.0 release dates and max speeds?
Graphics Cards
How to force Optimus or Switchable discrete GPUs?
What are the UBM DX11 GPU tests?
What are the UBM DX10 GPU tests?
What are the UBM DX09 GPU tests?
What is the Splatting GPU benchmark?
What is the Gravity (NBody) GPU benchmark?
Memory Kits
What is the RAM value for money rating?
What is the effective RAM speed index?
What is the system memory latency ladder?
ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $164Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $150
Intel Core i5-12400F $109Nvidia RTX 4060-Ti $385WD Black SN850X M.2 1TB $89
Intel Core i5-13600K $239Nvidia RTX 4070 $549Crucial T700 M.2 4TB $397
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback