TEST
YOUR RAM
ADD TO PC
BUILD

Unknown

CB8GS2666.C8RT 2x8GB

▲ 500 ▼

Release date ≈ Q4 2021.

Average Bench: 70.7% (80th of 115)

Based on 82 user benchmarks.  Model: Unknown CB8GS2666.C8RT 2x8GB
Poor: 46%Average: 70.7% Great: 86%

Popular builds with this RAM

Good average bench

The Unknown CB8GS2666.C8RT 2x8GB averaged 29.3% 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. 16 Core Write Bench 27.8GB/s
Avg. 16 Core Read Bench 26.7GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Unknown CB8GS2666.C8RT 2x8GB is 40%. This is a relatively wide range which indicates that the Unknown CB8GS2666.C8RT 2x8GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Physical RAM Latency 104ns
Avg. 1 Core Read Bench 14.4GB/s
ADVERTISEMENT

Average Bench

(Based on 82 samples)
Rank 8070.7%
Min Avg Max
14.3 MC Read 26.7 35.4
18.3 MC Write 27.8 33.7
14 MC Mixed 22.8 30.7
73.6% 25.8 GB/s
Min Avg Max
6.15 SC Read 14.4 22
8.45 SC Write 25.8 35.8
7.57 SC Mixed 19.1 25.6
56.4% 19.7 GB/s
Min Avg Max
65.3 Latency 104 193
38.3% 104 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
2 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
76.4% Very good
MC Read 29.6
MC Write 29.2
MC Mixed 22.4
77% 27.1 GB/s
SC Read 15.7
SC Write 32
SC Mixed 22.8
67% 23.5 GB/s
Latency 71.2
56% 71.2 ns
2 of 2 slots used
16GB SODIMM DDR4 2667 MHz clocked @ 2400 MHz
75.7% Very good
MC Read 28.4
MC Write 28.7
MC Mixed 26.2
79% 27.8 GB/s
SC Read 18.9
SC Write 25.7
SC Mixed 19.8
61% 21.5 GB/s
Latency 103
39% 103 ns
2 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
75.4% Very good
MC Read 29.2
MC Write 28.8
MC Mixed 21.3
76% 26.4 GB/s
SC Read 17.6
SC Write 31.9
SC Mixed 22.8
69% 24.1 GB/s
Latency 68.5
58% 68.5 ns
2 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
71.9% Very good
MC Read 28.2
MC Write 31.3
MC Mixed 22.5
78% 27.3 GB/s
SC Read 12.5
SC Write 23.7
SC Mixed 12.7
47% 16.3 GB/s
Latency 116
35% 116 ns
2 of 2 slots used
16GB SODIMM DDR4 2667 MHz clocked @ 2400 MHz
68.8% Good
MC Read 17.8
MC Write 31.6
MC Mixed 24.1
70% 24.5 GB/s
SC Read 10
SC Write 29.2
SC Mixed 21.1
57% 20.1 GB/s
Latency 74.8
54% 74.8 ns
2 of 2 slots used
16GB SODIMM DDR4 2667 MHz clocked @ 2400 MHz
62.1% Good
MC Read 26.5
MC Write 23.4
MC Mixed 24.7
71% 24.9 GB/s
SC Read 8.9
SC Write 11.5
SC Mixed 11.3
30% 10.6 GB/s
Latency 279
14% 279 ns
2 of 2 slots used
16GB SODIMM DDR4 clocked @ 2133 MHz
56.9% Above average
MC Read 20.8
MC Write 22.6
MC Mixed 19.2
60% 20.9 GB/s
SC Read 11.3
SC Write 20.7
SC Mixed 13.5
43% 15.2 GB/s
Latency 113
35% 113 ns
2 of 2 slots used
16GB SODIMM DDR4 2667 MHz clocked @ 2133 MHz
53.4% Above average
MC Read 18.4
MC Write 21.9
MC Mixed 18
56% 19.4 GB/s
SC Read 9.8
SC Write 20.9
SC Mixed 15.8
44% 15.5 GB/s
Latency 134
30% 134 ns
2 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
46.1% Average
MC Read 21.3
MC Write 17.4
MC Mixed 17.2
53% 18.6 GB/s
SC Read 4.6
SC Write 10.2
SC Mixed 6.5
20% 7.1 GB/s
Latency 390
10% 390 ns
82 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,365,484 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 CB8GS2666.C8RT 2x8GB Builds (Compare 11,923 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 11%
Tree trunk
Desktop
Desktop 65%
Battle cruiser
Workstation
Workstation 10%
Tree trunk

System: Acer Nitro AN515-54

CPU
Core i5-9300HIntelBench 65%, 116,682 samples5,776x
Core i7-9750HIntelBench 73%, 328,182 samples2,908x
Core i5-9300HIntelBench 68%, 23,588 samples2,701x
GPU
UHD Graphics 630IntelBench 5%, 506,702 samples6,060x
GTX 1650 (Mobile)NvidiaBench 41%, 92,838 samples3,511x
RTX 2060 (Mobile)NvidiaBench 71%, 119,687 samples951x
SSD
HFM256GDJTNG-8310A 256GBBench 121%, 26,870 samples1,228x
Micron_2200_MTFDHBA512TCK 512GBBench 188%, 4,220 samples1,046x
RBUSNS8154P3512GJ1 512GBKingstonBench 126%, 5,630 samples750x
RAM
CB8GS2666.C8RT 2x8GBUnknownBench 71%, 82 samples1x
EDIT WITH CUSTOM PC BUILDER

Popular CB8GS2666.C8RT 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

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
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 $149
Intel Core i5-12400F $110Nvidia RTX 4060-Ti $385WD Black SN850X M.2 1TB $89
Intel Core i5-13600K $245Nvidia RTX 4070 $549Crucial T700 M.2 4TB $359
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