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Compact low-profile graphics card with dual fans and matte black finish

GIGABYTE Refurbished

GIGABYTE GV-R64D6-4GL Radeon RX 6400 graphics card

SKU CH-VZ0P-MKP1Q MPN GV-R64D6-4GL

Low-profile Radeon graphics card with 4GB GDDR6 memory, 768 stream processors and a 2321 MHz boost clock for compact 1080p builds

  • Graphics processorRadeon RX 6400
  • Memory capacity4 GB
  • Interface typePCI Express 4.0
  • Shader units768
  • Highest resolution7680 × 4320
  • Boost frequency2321 MHz
  • Low-profile design fits compact builds with a 182 mm card length
  • Dual-fan cooler handles the 53 W thermal design power quietly
  • HDMI 2.1 and DisplayPort 1.4 drive two displays up to 7680 x 4320
  • 4 GB GDDR6 memory on a 64-bit interface feeds the 768 stream processors
  • PCI Express 4.0 interface and RDNA 2 architecture enable the 2321 MHz boost clock

Low-Profile RX 6400 Card

The GIGABYTE GV-R64D6-4GL is a low-profile graphics card built on the AMD Radeon RX 6400 GPU with 768 stream processors. It targets compact systems that need a PCI Express 4.0 add-in board for 1080p gaming or multi-monitor productivity. The 4GB GDDR6 frame buffer and 64-bit memory interface keep the physical footprint small while supporting modern display outputs.

Sustained 53W Load Behaviour

With a 53W thermal design power the card draws modest energy under continuous load. The game clock of 2039 MHz is the typical operating frequency during extended sessions, while the 2321 MHz boost clock appears only in short bursts. The 16000 MHz effective memory clock feeds the 64-bit bus steadily, so frame-times remain consistent without aggressive throttling.

Dual-Fan Cooling at 53W

A dual-fan cooler handles the 53W heat load in a two-slot, 182 mm long form factor. At typical gaming power the fans spin at low RPM, keeping acoustic output quiet for living-room or office builds. A 350W power supply is sufficient for the whole system, and the single 8-pin connector is not required, simplifying cable routing in tight chassis.

How it compares

Measured against everything we stock in Desktop GPUs & Video Cards, at today’s prices. Recalculated every night.

Price $68.99
Cheaper than about 95% of the 4,285 comparable items (median $354.99).
Memory capacity 4 GB
Lower than about 90% of the 3,563 comparable items (median 8 GB).
Boost frequency 2321 MHz
Higher than about 57% of the 1,837 comparable items (median 1.89 GHz).

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Specifications

Product
Brand nameGIGABYTE
Model nameGV-R64D6-4GL
Processor
TDP rating53 W
Memory
Type of memoryGDDR6
Display
Highest resolution7680 × 4320
Graphics
Graphics processorRadeon RX 6400
Memory capacity4 GB
Boost frequency2321 MHz
Shader units768
Chipset makerAMD
Graphics seriesAMD Radeon RX 6000 Series
GPU architectureRDNA 2
Game clock speed2039 MHz
Effective memory speed16000 MHz
Memory bus width64-Bit
DirectX support12 Ultimate
OpenGL support4.6
Supported displays2
Ports & slots
Interface typePCI Express 4.0
HDMI ports1 x HDMI 2.1
DisplayPort connectors1 x DisplayPort 1.4
Power
Recommended power supply350 W
Size & build
Form factorLow Profile
Max graphics card length182 mm
Card size7.17 in × 2.72 in
Slots occupied2 Slots
Shipping weight0.54 kg
Package size292 × 211 × 51 mm
More details
Cooling solutionDouble Fans

Questions about this item

How much heat does the 53 W TDP put into a case that runs all day?

The card draws 53 W at its thermal design power, so a 350 W power supply is recommended and a standard low-profile cooler with two fans handles the heat.

What slot and power connectors must my motherboard and PSU provide for this RX 6400?

You need a PCI Express 4.0 x16 slot and a 350 W power supply; the board draws all power from the slot so no extra PCIe cables are required.

Will the 64-bit GDDR6 memory and PCI Express 4.0 link limit performance on an older PCIe 3.0 system?

The card uses a PCI Express 4.0 x4 electrical interface, so on a PCIe 3.0 motherboard bandwidth is halved, which can reduce frame rates in memory-heavy titles.

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