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Two black DDR5 modules with low-profile heat spreaders, 128GB kit

G.SKILL

G.SKILL Flare X5 F5-6000J3444F64GX2-FX5 128GB DDR5 6000 CL34 desktop RAM

SKU CH-R583-G4G15 MPN F5-6000J3444F64GX2-FX5

128 GB dual-channel DDR5 kit rated at 6000 MT/s with CL34 timings and AMD EXPO support for Ryzen platforms

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 6000 (PC5 48000)
  • CAS latencyCL34
  • Memory timings34-44-44-96
  • Rated voltage1.35 V
  • Buffer typeUnbuffered / Unregistered
  • 128 GB capacity across two 64 GB modules for heavy multitasking
  • DDR5 6000 speed with PC5 48000 bandwidth for fast data throughput
  • CL34 latency and 34-44-44-96 timings for responsive performance
  • 35 V operation reduces power draw and heat output
  • AMD EXPO support enables one-click overclock profile on Ryzen platforms

Flare X5 128GB DDR5 Kit

The Flare X5 kit delivers 128GB of DDR5 memory in two 64GB modules running at 6000 MT/s with CL34 latency. It is built for AMD Ryzen and Intel desktop platforms that support high-capacity dual-channel configurations. The black heat spreader helps manage thermals during extended sessions.

Sustained Load Behaviour

At 1.35V the modules maintain their rated 34-44-44-96 timings under continuous workloads rather than throttling after a short burst. The matched pair is validated to run together as a set, reducing the risk of instability that can appear when mixing separate kits over long periods.

DDR5 Interface Limits

The DDR5 6000 (PC5 48000) interface provides the bandwidth ceiling for this kit; actual throughput depends on the memory controller in the CPU and the motherboard's trace layout. AMD EXPO profiles can be enabled in BIOS to reach the rated speed, but stability at that frequency is not guaranteed on every 600, 650, 670, 700, 800, 850 or 870 series platform.

How it compares

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

Price $2,477.99
Pricier than about 90% of the 3,647 comparable items (median $90.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 93% of the 3,251 comparable items (median 16 GB).
Price per GB $19.36 per GB
Pricier than about 90% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameG.SKILL
Product lineFlare X5
Model nameF5-6000J3444F64GX2-FX5
Total capacity128 GB (2 × 64 GB)
Product type288-Pin PC RAM
Product colorBlack
Performance
Rated speedDDR5 6000 (PC5 48000)
Memory
CAS latencyCL34
Memory timings34-44-44-96
ECC supportNo
Buffer typeUnbuffered / Unregistered
Kit configurationDual Channel Kit
Heat spreaderYes
Power
Rated voltage1.35 V
Size & build
Shipping weight0.14 kg
Package size218 × 144 × 13 mm
Compatibility
Recommended forAMD & Intel Compatible / AMD 600 Series / AMD 800 Series / AMD B650 / AMD B850 / AMD Ryzen Compatible / AMD X670 / AMD X870 / High Performance or Gaming Memory / Intel 600 Series / Intel 700 Series / Intel 800 Series / Intel B660 / Intel B670 / Intel B760 / Intel Compatible / Intel H770 / Intel Z690 / Intel Z790 / Intel Z890
More details
LED lightingNone

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