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Compare Kingston Fury Beast RGB 128GB (2x64GB) DDR5 5600 vs G.Skill Ripjaws V 128GB (4 x 32GB) DDR4 4000MHz

The main differences between Kingston Fury Beast RGB 128GB (2x64GB) DDR5 5600 and G.Skill Ripjaws V 128GB (4 x 32GB) DDR4 4000MHz are in Speed, Size, CAS Latency and First Word Latency.
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Brand
Kingston
Brand
G.Skill
Model
KF556C40BBAK2-128
Model
F4-4000C18Q-128GVK
Release Date
📅 May 2025
Release Date
📅 October 2020
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★☆☆☆
(3 reviews)
Price history
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Price history
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Price/GB
-
Price/GB
$31.09
GB/$1
-
GB/$1
0.03
Samsung B-Die
No
Samsung B-Die
No
Compatible PC parts
Compatible PC parts
Type
288-pin DDR5 DIMM
Type
288-pin DDR4 DIMM
Speed
DDR5-5600 MHz
Speed
DDR4-4000 MHz
Size
128GB (2 x 64GB)
Size
128GB (4 x 32GB)
CAS Latency
40
CAS Latency
18
Timing
-
Timing
18-22-22-42
First Word Latency
14.28 ns
First Word Latency
9 ns
Voltage
1.25 V
Voltage
1.4 V
Heat Spreader
Yes
Heat Spreader
Yes
ECC Support
No
ECC Support
No
Color
-
Color
Black
LED Color
RGB
LED Color
-
-

Comparison and key differences summary

Reasons to buy the Kingston Fury Beast RGB 128GB (2x64GB) DDR5 5600:

  • Newer Product, it was released around 5 years later
  • Less voltage required (-0.15 V needed)
  • RGB Lighting

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Reasons to buy the G.Skill Ripjaws V 128GB (4 x 32GB) DDR4 4000MHz:

  • Less CAS latency (-22)
  • Better first word latency (-5.28 ns)

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