TEST
YOUR RAM
ADD TO PC
BUILD

Hynix

HMA851S6CJR6N-XN 2x4GB

▲ 500 ▼

Release date ≈ Q2 2020.

Average Bench: 70.5% (81st of 115)

Based on 5,799 user benchmarks.  Model: Hynix HMA851S6CJR6N-XN 2x4GB
Poor: 57%Average: 70.5% Great: 84%

Popular builds with this RAM

Good average bench

The Hynix HMA851S6CJR6N-XN 2x4GB averaged 29.5% 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. 1 Core Write Bench 29.8GB/s
Avg. 16 Core Write Bench 27.2GB/s

Good consistency

The range of scores (95th - 5th percentile) for the Hynix HMA851S6CJR6N-XN 2x4GB is 27%. This is a relatively narrow range which indicates that the Hynix HMA851S6CJR6N-XN 2x4GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Physical RAM Latency 104ns
Avg. 1 Core Read Bench 15.9GB/s
ADVERTISEMENT

Average Bench

(Based on 5,799 samples)
Rank 8170.5%
Min Avg Max
20.2 MC Read 26.9 33.4
18.9 MC Write 27.2 32.9
17.1 MC Mixed 22.1 27.8
72.6% 25.4 GB/s
Min Avg Max
9.48 SC Read 15.9 21.1
15.8 SC Write 29.8 40
11.4 SC Mixed 18 25.1
60.6% 21.2 GB/s
Min Avg Max
74.4 Latency 104 156
38.4% 104 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 2 slots used
8GB SODIMM DDR4 clocked @ 3200 MHz
67.7% Good
MC Read 27.8
MC Write 26.8
MC Mixed 19.9
71% 24.8 GB/s
SC Read 13.6
SC Write 29.3
SC Mixed 15.2
55% 19.4 GB/s
Latency 120
33% 120 ns
2 of 2 slots used
8GB Row of chips DDR4 clocked @ 3200 MHz
65.2% Good
MC Read 27
MC Write 24.5
MC Mixed 19
67% 23.5 GB/s
SC Read 14.1
SC Write 26.9
SC Mixed 16.4
55% 19.1 GB/s
Latency 95.5
42% 95.5 ns
2 of 2 slots used
8GB SODIMM DDR4 clocked @ 3200 MHz
63.6% Good
MC Read 25.3
MC Write 25.4
MC Mixed 19.3
67% 23.3 GB/s
SC Read 10.9
SC Write 28.3
SC Mixed 11.5
48% 16.9 GB/s
Latency 100
40% 100 ns
2 of 2 slots used
8GB SODIMM DDR4 clocked @ 3200 MHz
62.3% Good
MC Read 24.7
MC Write 21.5
MC Mixed 20.6
64% 22.3 GB/s
SC Read 16.9
SC Write 25.6
SC Mixed 18.2
58% 20.2 GB/s
Latency 120
33% 120 ns
2 of 8 slots used
8GB SODIMM DDR4 clocked @ 3200 MHz
59.3% Above average
MC Read 21.4
MC Write 23.1
MC Mixed 17.3
59% 20.6 GB/s
SC Read 15
SC Write 27.5
SC Mixed 16.4
56% 19.6 GB/s
Latency 84.7
47% 84.7 ns
2 of 2 slots used
8GB SODIMM DDR4 3200 MHz clocked @ 2667 MHz
57% Above average
MC Read 23.9
MC Write 24.8
MC Mixed 17.4
63% 22 GB/s
SC Read 7.1
SC Write 19.1
SC Mixed 10.7
35% 12.3 GB/s
Latency 197
20% 197 ns
2 of 2 slots used
8GB Row of chips DDR4 clocked @ 3200 MHz
53.7% Above average
MC Read 20.6
MC Write 21.2
MC Mixed 15.7
55% 19.2 GB/s
SC Read 11.6
SC Write 25.1
SC Mixed 13.2
48% 16.6 GB/s
Latency 116
35% 116 ns
2 of 2 slots used
8GB SODIMM DDR4 clocked @ 3200 MHz
53.4% Above average
MC Read 20.3
MC Write 21.8
MC Mixed 15.5
55% 19.2 GB/s
SC Read 11.2
SC Write 22.1
SC Mixed 13.8
45% 15.7 GB/s
Latency 115
35% 115 ns
5,799 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 58,174,275 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-XN 2x4GB Builds (Compare 105 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 16%
Surfboard
Desktop
Desktop 74%
Battleship
Workstation
Workstation 15%
Surfboard

System: Asus VivoBook_ASUSLaptop X421IAY_M413IA

CPU
Ryzen 5 4500UAMDBench 71%, 28,533 samples60x
Ryzen 7 4700UAMDBench 75%, 19,248 samples39x
Ryzen 3 4300UAMDBench 68%, 4,587 samples6x
GPU
RX Vega 8 4000 (iGPU)AMDBench 13%, 162,082 samples105x
SSD
660p NVMe PCIe M.2 512GBIntel  $68Bench 156%, 162,275 samples74x
PC SN530 SDBPNPZ-256G-1002 256GBWDCBench 152%, 7,988 samples10x
HFM256GDJTNG-8310A 256GBBench 121%, 26,870 samples8x
RAM
HMA851S6CJR6N-XN 2x4GBHynixBench 70%, 5,799 samples90x
EDIT WITH CUSTOM PC BUILDER Value: 46% - Average Total price: $68

Popular HMA851S6CJR6N-XN 2x4GB systems:

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

Welcome to our freeware 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 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) February 2023 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 3000 C15 2x8GB
vs Corsair Vengeance LPX DDR4 3200 C16 2x8GB
vs G.SKILL Trident Z DDR4 3200 C14 4x16GB
vs G.SKILL Trident Z DDR4 3600 C16 2x8GB
vs Corsair Vengeance LPX DDR4 2666 C16 2x8GB
vs HyperX Fury DDR4 2133 C14 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

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 $302Nvidia RTX 3060 $325Crucial MX500 250GB $30
Intel Core i3-12100F $98Nvidia RTX 3060-Ti $450Samsung 850 Evo 120GB $106
Intel Core i5-12400F $160Nvidia RTX 4070-Ti $800Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $50SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3200 C16 2x8GB $49SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $417SanDisk Ultra Fit 32GB $16
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