ASRock Radeon RX 6400 Challenger ITX 4GB vs Radeon RX 7900 GRE Challenger Graphics Card Comparison

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ASRock Radeon RX 6400 Challenger ITX 4GB	ASRock Radeon RX 7900 GRE Challenger
Prices (Change region) In Stock $199.15 Last updated 11 minutes ago.	Prices (Change region) Out of Stock + $9.99 Shipping $529.99
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Brand ASRock	Brand ASRock
Model RX6400 CLI 4G	Model RX7900GRE CL 16GO
Release Date -	Release Date -
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
GPU Gaming Performance (Rasterization) (Charts) 82nd / 103 (-438%)	GPU Gaming Performance (Rasterization) (Charts) 16th / 103 (0%)
Gaming Effective Value 1269th / 1617	Gaming Effective Value 47th / 1617
TDP 🔌 53 Watts	TDP 🔌 260 Watts
Price history View Details ►	Price history View Details ►
Compatible PC parts Cases ► Power Supplies ►	Compatible PC parts Cases ► Power Supplies ►
Series AMD Radeon RX 6000 Series	Series AMD Radeon RX 7000 Series
GPU Interface PCIe x16	GPU Interface PCIe x16
GPU Chipset Radeon RX 6400	GPU Chipset Radeon RX 7900 GRE
GPU Memory Size 4 GB	GPU Memory Size 16 GB
GPU Memory Type GDDR6	GPU Memory Type GDDR6
GPU Memory Interface 64-bit	GPU Memory Interface 256-bit
GPU Clock Rate 1923 MHz	GPU Clock Rate 1270 MHz
GPU Boost Clock Rate 2321 MHz	GPU Boost Clock Rate 2293 MHz
Max Resolution 7680 x 4320	Max Resolution 7680 x 4320
Length 162 mm	Length 269 mm
Cooling Type 1 Fan	Cooling Type 2 Fans
Power Connectors None	Power Connectors 2 PCIe 8-pin
DirectX DirectX 12 Ultimate	DirectX DirectX 12 Ultimate
OpenGL OpenGL 4.6	OpenGL OpenGL 4.6
SLI Support No	SLI Support No
CrossFire Support No	CrossFire Support No
DVI-D (Dual Link) 0	DVI-D (Dual Link) 0
DVI-I (Dual Link) 0	DVI-I (Dual Link) 0
DisplayPort 1	DisplayPort 3
HDMI 1	HDMI 1
G-SYNC Support No	G-SYNC Support No
FreeSync Support Yes	FreeSync Support Yes
Expansion slots required 2	Expansion slots required 2

What are the differences between ASRock Radeon RX 6400 Challenger ITX 4GB and Radeon RX 7900 GRE Challenger? Analyze head-to-head all specifications and features to find out the better graphics card.