TEST
YOUR RAM
ADD TO PC
BUILD

Hynix

HMA851S6CJR6N-XJ 2x4GB

▲ 500 ▼

Release date ≈ Q2 2020.

Average Bench: 78.3% (61st of 115)

Based on 169 user benchmarks.  Model: Hynix HMA851S6CJR6N-XJ 2x4GB
Poor: 69%Average: 78.3% Great: 86%

Popular builds with this RAM

Good average bench

The Hynix HMA851S6CJR6N-XJ 2x4GB averaged 21.7% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Hynix HMA851S6CJR6N-XJ 2x4GB near the top of the comparison list.

Strengths

Avg. 16 Core Read Bench 31GB/s
Avg. 16 Core Write Bench 28.8GB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Hynix HMA851S6CJR6N-XJ 2x4GB is just 16.5%. This is a relatively narrow range which indicates that the Hynix HMA851S6CJR6N-XJ 2x4GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Physical RAM Latency 107ns
Avg. 1 Core Read Bench 17.4GB/s
ADVERTISEMENT

Average Bench

(Based on 169 samples)
Rank 6178.3%
Min Avg Max
26.6 MC Read 31 34.3
25.2 MC Write 28.8 32
24.3 MC Mixed 26.7 28.5
82.4% 28.8 GB/s
Min Avg Max
10.4 SC Read 17.4 21
19.3 SC Write 28.2 33
17.5 SC Mixed 19.7 21
62.1% 21.8 GB/s
Min Avg Max
87.3 Latency 107 168
37.3% 107 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
2 of 2 slots used
8GB Row of chips DDR4 clocked @ 3200 MHz
80.7% Excellent
MC Read 32.4
MC Write 29.4
MC Mixed 26.5
84% 29.4 GB/s
SC Read 18.7
SC Write 31.3
SC Mixed 19.6
66% 23.2 GB/s
Latency 90.6
44% 90.6 ns
2 of 2 slots used
8GB Row of chips DDR4 clocked @ 3200 MHz
73.6% Very good
MC Read 28.5
MC Write 27.5
MC Mixed 25.7
78% 27.2 GB/s
SC Read 18.9
SC Write 24.9
SC Mixed 18.9
60% 20.9 GB/s
Latency 134
30% 134 ns
2 of 2 slots used
8GB Row of chips DDR4 clocked @ 3200 MHz
71.4% Very good
MC Read 27.5
MC Write 25.6
MC Mixed 24.7
74% 25.9 GB/s
SC Read 17.3
SC Write 25.6
SC Mixed 19.5
59% 20.8 GB/s
Latency 97.2
41% 97.2 ns
2 of 2 slots used
8GB Row of chips DDR4 clocked @ 3200 MHz
67.6% Good
MC Read 27.8
MC Write 23.6
MC Mixed 22.5
70% 24.6 GB/s
SC Read 15.8
SC Write 24.4
SC Mixed 17
54% 19.1 GB/s
Latency 100
40% 100 ns
2 of 2 slots used
8GB Row of chips DDR4 clocked @ 3200 MHz
64.2% Good
MC Read 24.3
MC Write 22.9
MC Mixed 22.8
67% 23.3 GB/s
SC Read 14.4
SC Write 20.2
SC Mixed 18.3
50% 17.6 GB/s
Latency 94.1
42% 94.1 ns
2 of 2 slots used
8GB Row of chips DDR4 clocked @ 3200 MHz
36.5% Below average
MC Read 12
MC Write 17.3
MC Mixed 12.4
40% 13.9 GB/s
SC Read 5.5
SC Write 10.5
SC Mixed 7.3
22% 7.77 GB/s
Latency 206
19% 206 ns
169 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,012,382 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 HMA851S6CJR6N-XJ 2x4GB Builds (Compare 451 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 17%
Surfboard
Desktop
Desktop 74%
Battleship
Workstation
Workstation 16%
Surfboard

System: Lenovo 81YQ

CPU
Ryzen 5 4500UAMDBench 71%, 28,533 samples206x
Ryzen 7 4700UAMDBench 75%, 19,248 samples150x
Ryzen 7 4800UAMDBench 80%, 2,275 samples53x
GPU
RX Vega 8 4000 (iGPU)AMDBench 13%, 162,082 samples451x
SSD
MZALQ512HALU-000L2 512GBSamsungBench 136%, 14,504 samples64x
SKHynix_HFM512GDHTNI-87A0B 512GBBench 169%, 11,687 samples61x
CL1-4D512 512GBSsstcBench 142%, 406 samples58x
RAM
HMA851S6CJR6N-XJ 2x4GBHynixBench 78%, 169 samples1x
EDIT WITH CUSTOM PC BUILDER

Popular HMA851S6CJR6N-XJ 2x4GB 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) April 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
Ready to retire
Age: 3 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 Corsair Vengeance LPX DDR4 2133 C13 2x8GB
vs G.SKILL Trident Z DDR4 3200 C16 2x8GB
vs G.SKILL Ripjaws 4 DDR4 2400 C14 8x16GB

115 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
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182Nvidia 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) $30Corsair 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