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GIGABYTE Radeon RX 6400 D6 LOW
Gigabyte

Radeon RX 6400 D6 LOW

AMD's Radeon RX 6400 is a low-profile card that runs without a power cable, with weak gaming speed.

GPUs
—/10What the pros sayPendingExpert consensus · Verified Oct 8, 2026See score breakdown ↓
Buying call

Buy an RX 6400 card only to add basic graphics to a small or office PC: early reviews liked that it needs no power cable, comes in low-profile versions and handles 1080p at medium settings. Skip it for real gaming, because performance is lackluster, it trades blows with the older GTX 1650, and its ray tracing hardware is too weak to matter.

Full verdict ↓
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Real-world useBased on everyday testing, not a spec sheet
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Key specs
GPU
Radeon RX 6400
VRAM
4 GB GDDR6
Boost clock
2321 MHz
PSU
350 W
Highlights

Specs that matter

Performance
GPU
Radeon RX 6400
Price & availability

Where to buy

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Buying decision

Should you buy it?

Buy an RX 6400 card only to add basic graphics to a small or office PC: early reviews liked that it needs no power cable, comes in low-profile versions and handles 1080p at medium settings. Skip it for real gaming, because performance is lackluster, it trades blows with the older GTX 1650, and its ray tracing hardware is too weak to matter.

Best for

Small office PCs that need a low-power card.

Not for

Gamers.

Main strengthNo power cable needed
Main weaknessWeak gaming performance
Reasons to buy
No power cable needed
Low-profile versions
Fine for light 1080p
Reasons to avoid
Weak gaming performance
Ray tracing too slow to use
Measured view—/10What the pros say · verified oct 8, 2026.
ScoreVerified Oct 8, 2026
Head to head

How it stacks up

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GIGABYTE Radeon RX 6400 D6 LOW
This deviceRadeon RX 6400 D6 LOW
VS
GIGABYTE GeForce RTX 5080 GAMING OC 16G
AlternativeGIGABYTE GeForce RTX 5080 GAMING OC 16G
Score
——
Full comparison
GIGABYTE Radeon RX 6400 D6 LOW
This deviceRadeon RX 6400 D6 LOW
VS
GIGABYTE GeForce RTX 5080 WINDFORCE OC SFF 16G
AlternativeGIGABYTE GeForce RTX 5080 WINDFORCE OC SFF 16G
Score
——
Full comparison
GIGABYTE Radeon RX 6400 D6 LOW
This deviceRadeon RX 6400 D6 LOW
VS
GIGABYTE GeForce RTX 5070 Ti GAMING OC 16G
AlternativeGIGABYTE GeForce RTX 5070 Ti GAMING OC 16G
Score
——
Full comparison
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Product data

Full specifications

22 attributes, grouped for quick scanning. Verified Oct 8, 2026. Spot a wrong value? Hit the next to it.

Max Resolution
7680 x 4320 pixels
Displayport Version
1.4
Displayport Ports
1
Gpu Architecture
RDNA 2.0
Gpu Name
Radeon RX 6400
Gpu Vendor
AMD
Hdmi Version
2.1
Hdmi Ports
1
Memory Bus Bit
64
Memory Type
GDDR6
Vram
4
Model Number
GV-R64D6-4GL
Slot Width
1
Depth
1.42 in (36 mm)
Height
2.72 in (69 mm)
Length
7.17 in (18.2 cm)
Boost Clock Mhz
2321
Architecture
RDNA 2.0
Fan Count
1
Cooling Type
Active
Recommended Psu
350
Pcie Interface
PCI Express 4.0
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