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Two white DDR5 memory modules with RGB light bars and matte aluminium heatspreaders

G.SKILL

G.SKILL F5-6400J3239G32GX2-RM5RW 64GB (2 x 32GB) DDR5 6400 desktop RAM

SKU CH-CMN7-9NRDQ MPN F5-6400J3239G32GX2-RM5RW

A 64GB dual-channel DDR5 kit running at 6400 MT/s with CL32 timings, 1.40V, white heat spreaders and RGB lighting

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • CAS latencyCL32
  • Memory timings32-39-39
  • Rated voltage1.4 V
  • Kit configurationDual Channel Kit

Capacity 64GB (2 x 32GB)

Speed DDR5 6400 (PC5 51200)

CAS Latency CL32

Color White

  • 64 GB dual-channel capacity for heavy multitasking
  • DDR5 6400 speed with PC5 51200 bandwidth for fast data transfer
  • CL32 32-39-39 timings for responsive low-latency operation
  • Intel XMP 3.0 profile enables one-click overclock setup
  • White aluminium heatspreader with RGB lighting matches themed builds

Ripjaws M5 RGB 64GB DDR5 Kit

This 64GB kit contains two 32GB DDR5 modules rated at 6400 MT/s with CL32-39-39 timings. It targets gamers and enthusiasts building on Intel 700 series chipsets with 13th or 14th Gen Core processors. The white aluminum heatspreaders and addressable RGB lighting suit themed builds.

Thermals and Power at 1.40V

Operating at 1.40V, the modules rely on the aluminum heatspreaders to move heat away from the hand-screened ICs during sustained loads. No active cooling is included, so case airflow determines peak temperatures. The dual-channel layout keeps the memory controller load balanced across both sticks.

XMP 3.0 and RGB Sync Software

Intel XMP 3.0 stores the 6400 MT/s profile so the firmware can apply it with one BIOS selection. The RGB LEDs respond to Asus Aura, Gigabyte RGB Fusion, MSI Mystic Light and ASRock Polychrome Sync utilities for system-wide lighting coordination.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $825.99
Pricier than about 90% of the 3,647 comparable items (median $90.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 90% of the 3,251 comparable items (median 16 GB).
Price per GB $12.91 per GB
Pricier than about 80% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameG.SKILL
Product lineRipjaws M5 RGB Series
Model nameF5-6400J3239G32GX2-RM5RW
Part numberF5-6400J3239G32GX2-RM5RW
Total capacity64 GB (2 × 32 GB)
Product type288-Pin PC RAM
Product colorWhite
Performance
Rated speedDDR5 6400 (PC5 51200)
Memory
CAS latencyCL32
Memory timings32-39-39
ECC supportNo
Kit configurationDual Channel Kit
Memory profilesIntel XMP 3.0
Heat spreaderYes
Power
Rated voltage1.4 V
Size & build
Shipping weight0.16 kg
Package size159 × 140 × 13 mm
Compatibility
Recommended forIntel 700 Series Chipset
13th/14th Gen Intel Core Desktop Processors
More details
LED lightingRGB

Other versions of this model

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Questions about this item

How do I install the 288-pin DDR5 modules and enable the XMP 3.0 profile without skipping the BIOS step?

Insert each 32 GB stick into the motherboard DDR5 slots following the dual-channel layout in the manual, then enter BIOS and load the Intel XMP 3.0 profile to run at DDR5 6400 CL32 1.40 V.

What maintenance will the aluminum heatspreaders and RGB LEDs need over time?

Dust the white aluminum heatspreaders occasionally with compressed air; the RGB LEDs are solid-state and require no bulb replacement.

At what point does the CL32 1.40 V rating become the limiting factor during sustained workloads?

The kit is validated at DDR5 6400 with timings 32-39-39 at 1.40 V; pushing frequency or tightening timings beyond this spec is where stability limits appear first.

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