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Unknown

J642GU42J9266NF 2x16GB

▲ 500 ▼

Release date ≈ Q2 2018.

Average Bench: 83.3% (43rd of 115)

Based on 478 user benchmarks.  Model: Unknown J642GU42J9266NF 2x16GB
Poor: 67%Average: 83.3% Great: 90%

Popular builds with this RAM

Very good average bench

The Unknown J642GU42J9266NF 2x16GB averaged just 16.7% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Unknown J642GU42J9266NF 2x16GB near the top of the comparison list.

Strengths

Avg. 1 Core Write Bench 33.4GB/s
Avg. 16 Core Write Bench 32.5GB/s

Good consistency

The range of scores (95th - 5th percentile) for the Unknown J642GU42J9266NF 2x16GB is 22.8%. This is a relatively narrow range which indicates that the Unknown J642GU42J9266NF 2x16GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 1 Core Read Bench 17.3GB/s
Avg. Physical RAM Latency 75.5ns
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Average Bench

(Based on 478 samples)
Rank 4383.3%
Min Avg Max
23.8 MC Read 30.8 33.3
26 MC Write 32.5 35
22.2 MC Mixed 26.1 28
85.1% 29.8 GB/s
Min Avg Max
9.8 SC Read 17.3 19.9
19.8 SC Write 33.4 38
14.6 SC Mixed 24.9 28.5
72% 25.2 GB/s
Min Avg Max
62.1 Latency 75.5 105
53% 75.5 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
2 of 2 slots used
32GB SODIMM DDR4 clocked @ 2667 MHz
87.3% Excellent
MC Read 32.1
MC Write 34.3
MC Mixed 26.5
88% 31 GB/s
SC Read 17.6
SC Write 37.7
SC Mixed 25.8
77% 27 GB/s
Latency 64.1
62% 64.1 ns
2 of 4 slots used
32GB SODIMM DDR4 clocked @ 2667 MHz
87% Excellent
MC Read 32.1
MC Write 33.9
MC Mixed 26.7
88% 30.9 GB/s
SC Read 17.2
SC Write 37.3
SC Mixed 26.1
77% 26.9 GB/s
Latency 65.6
61% 65.6 ns
2 of 2 slots used
32GB SODIMM DDR4 clocked @ 2667 MHz
84.2% Excellent
MC Read 31.3
MC Write 33.1
MC Mixed 25.3
85% 29.9 GB/s
SC Read 17.3
SC Write 34.6
SC Mixed 25.4
74% 25.8 GB/s
Latency 66.5
60% 66.5 ns
2 of 4 slots used
32GB SODIMM DDR4 clocked @ 2400 MHz
83.1% Excellent
MC Read 30.4
MC Write 32.2
MC Mixed 26.2
85% 29.6 GB/s
SC Read 16.6
SC Write 33.5
SC Mixed 26.2
73% 25.4 GB/s
Latency 70.2
57% 70.2 ns
2 of 2 slots used
32GB SODIMM DDR4 2667 MHz clocked @ 2666 MHz
78.7% Very good
MC Read 29.9
MC Write 29.3
MC Mixed 24.4
80% 27.9 GB/s
SC Read 16.7
SC Write 32.8
SC Mixed 25.5
71% 25 GB/s
Latency 75.6
53% 75.6 ns
2 of 4 slots used
32GB SODIMM DDR4 clocked @ 2667 MHz
76.8% Very good
MC Read 28.2
MC Write 28.9
MC Mixed 24.6
78% 27.2 GB/s
SC Read 15.6
SC Write 34.2
SC Mixed 24.1
70% 24.6 GB/s
Latency 82.2
49% 82.2 ns
2 of 2 slots used
32GB SODIMM DDR4 2667 MHz clocked @ 2133 MHz
60.4% Good
MC Read 21.5
MC Write 24.5
MC Mixed 21.9
65% 22.6 GB/s
SC Read 9.7
SC Write 19.1
SC Mixed 19.4
46% 16.1 GB/s
Latency 171
23% 171 ns
2 of 2 slots used
32GB SODIMM DDR4 2667 MHz clocked @ 2133 MHz
53.2% Above average
MC Read 14.6
MC Write 23
MC Mixed 22.3
57% 20 GB/s
SC Read 6.8
SC Write 16.2
SC Mixed 11.3
33% 11.4 GB/s
Latency 107
37% 107 ns
478 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 65,473,698 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 J642GU42J9266NF 2x16GB Builds (Compare 96 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 63%
Destroyer
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 55%
Gunboat

System: Eluktronics MAG-15 2070

CPU
Core i7-9750HIntelBench 73%, 328,182 samples96x
GPU
RTX 2070 (Mobile Max-Q)NvidiaBench 79%, 10,818 samples53x
UHD Graphics 630IntelBench 5%, 506,702 samples43x
SSD
660p NVMe PCIe M.2 2TBIntel  $160Bench 217%, 33,949 samples15x
P1 3D NVMe PCIe M.2 1TBCrucial  $119Bench 212%, 171,271 samples9x
970 Evo NVMe PCIe M.2 1TBSamsung  $119Bench 297%, 331,647 samples7x
RAM
J642GU42J9266NF 2x16GBUnknownBench 83%, 478 samples15x
EDIT WITH CUSTOM PC BUILDER Value: 96% - Outstanding Total price: $160

Popular J642GU42J9266NF 2x16GB systems:

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  • - CPU tests include: integer, floating and string
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  • - Drive tests include: read, write, sustained write and mixed IO
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Memory Kit Rankings (Price vs Performance) December 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]

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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.

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