TEST
YOUR RAM
ADD TO PC
BUILD

Crucial

CT16G4DFD8266.C16FE 8x16GB

▲ 500 ▼

Release date ≈ Q1 2019.

Average Bench: 130% (17th of 132)

Based on 9 user benchmarks.  Model: Crucial CT16G4DFD8266.C16FE 8x16GB
Poor: 91%Average: 130% Great: 162%

Popular builds with this RAM

Outstanding average bench

The Crucial CT16G4DFD8266.C16FE 8x16GB averaged 30.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial CT16G4DFD8266.C16FE 8x16GB near the top of the comparison list.

Strengths

Avg. 16 Core Write Bench 58.9GB/s
Avg. 16 Core Read Bench 49GB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Crucial CT16G4DFD8266.C16FE 8x16GB is 71.3%. This is a particularly wide range which indicates that the Crucial CT16G4DFD8266.C16FE 8x16GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 1 Core Read Bench 14.4GB/s
Avg. Physical RAM Latency 96.8ns
ADVERTISEMENT

Average Bench

(Based on 9 samples)
Rank 17130%
Min Avg Max
34.8 MC Read 49 66.4
32.9 MC Write 58.9 65.2
30 MC Mixed 48.6 67.4
149% 52.1 GB/s
Min Avg Max
7 SC Read 14.4 23
20.3 SC Write 26.5 38.3
9.4 SC Mixed 21 34.2
59% 20.6 GB/s
Min Avg Max
81.9 Latency 96.8 109
41.3% 96.8 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
8 of 8 slots used
128GB DIMM DDR4 clocked @ 2667 MHz
162% Outstanding
MC Read 64.4
MC Write 64.8
MC Mixed 67.4
187% 65.5 GB/s
SC Read 19.9
SC Write 20.4
SC Mixed 34.2
71% 24.8 GB/s
Latency 98.7
40% 98.7 ns
8 of 8 slots used
128GB DIMM DDR4 2666 MHz clocked @ 1333 MHz
159% Outstanding
MC Read 63.9
MC Write 65.2
MC Mixed 61.9
182% 63.7 GB/s
SC Read 18.6
SC Write 37.2
SC Mixed 25.8
78% 27.2 GB/s
Latency 109
37% 109 ns
8 of 8 slots used
128GB DIMM DDR4 clocked @ 2666 MHz
157% Outstanding
MC Read 63.5
MC Write 59.7
MC Mixed 65.5
180% 62.9 GB/s
SC Read 20.4
SC Write 20.4
SC Mixed 34.2
71% 25 GB/s
Latency 99.4
40% 99.4 ns
8 of 8 slots used
128GB DIMM DDR4 clocked @ 2666 MHz
116% Outstanding
MC Read 39.5
MC Write 63
MC Mixed 39.9
136% 47.5 GB/s
SC Read 7.9
SC Write 21.1
SC Mixed 11.2
38% 13.4 GB/s
Latency 92.9
43% 92.9 ns
8 of 8 slots used
128GB DIMM DDR4 clocked @ 2666 MHz
111% Outstanding
MC Read 36.6
MC Write 61.4
MC Mixed 37.5
129% 45.2 GB/s
SC Read 8
SC Write 20.3
SC Mixed 10.2
37% 12.8 GB/s
Latency 92.8
43% 92.8 ns
8 of 8 slots used
128GB DIMM DDR4 clocked @ 2666 MHz
108% Outstanding
MC Read 35.9
MC Write 58.8
MC Mixed 36.4
125% 43.7 GB/s
SC Read 7.3
SC Write 22.5
SC Mixed 10
38% 13.3 GB/s
Latency 97.9
41% 97.9 ns
8 of 8 slots used
128GB DIMM DDR4 clocked @ 2666 MHz
91.1% Outstanding
MC Read 34.8
MC Write 32.9
MC Mixed 30
93% 32.6 GB/s
SC Read 23
SC Write 36.2
SC Mixed 29.3
84% 29.5 GB/s
Latency 81.9
49% 81.9 ns

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,413,108 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 CT16G4DFD8266.C16FE 8x16GB Builds (Compare 134 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 177%
UFO
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 192%
UFO

Motherboard: Asus WS X299 SAGE/10G

CPU
Core i9-10900XIntelBench 85%, 6,322 samples26x
Core i9-10980XEIntel  $1,100Bench 84%, 4,959 samples23x
Core i9-10920XIntel  $850Bench 87%, 3,007 samples15x
GPU
RTX 3090Nvidia  $1,000Bench 210%, 158,856 samples24x
RTX 2080-TiNvidia  $365Bench 156%, 357,946 samples18x
RTX A4000NvidiaBench 132%, 4,246 samples12x
SSD
970 Pro NVMe PCIe M.2 1TBSamsung  $320Bench 327%, 38,669 samples9x
980 NVMe PCIe M.2 1TBSamsung  $90Bench 251%, 262,559 samples9x
970 Evo Plus NVMe PCIe M.2 2TBSamsung  $159Bench 336%, 200,600 samples8x
RAM
CT16G4DFD8266.C16FE 8x16GBCrucialBench 130%, 9 samples1x
EDIT WITH CUSTOM PC BUILDER Value: 50% - Above average Total price: $1,320

Popular CT16G4DFD8266.C16FE 8x16GB compatible motherboards:

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
Ready to retire
Age: 5 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

132 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 $160Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $150
Intel Core i5-13600K $260Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $79
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $363
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