Sapphire Radeon RX 6800 XT vs Asus Radeon R9 390 DirectCU II

VS
Sapphire Radeon RX 6800 XT
Sapphire Radeon RX 6800 XT Image
Asus Radeon R9 390 DirectCU II
Asus Radeon R9 390 DirectCU II Image
Sapphire Radeon RX 6800 XT
Asus Radeon R9 390 DirectCU II
Key Differences Key Differences Sapphire Radeon RX 6800 XT Asus Radeon R9 390 DirectCU II
GPU Base Clock Speed 1825MHz 1000MHz
GPU Boost Clock Speed 2250MHz Not Known
Pixel Rate 288 GPixel/s 64 GPixel/s
GPU Memory Speed 2000MHz 1500MHz
GPU Render Output Units (ROPs) 128 64
No. of Supported Displays 4 6
Performance Performance Sapphire Radeon RX 6800 XT Asus Radeon R9 390 DirectCU II
GPU Base Clock Speed 1825MHz 1000MHz
Pixel Rate 288 GPixel/s 64 GPixel/s
FLOPS (Floating-point Performance) 20.74 TFLOPS 5.12 TFLOPS
GPU Memory Speed 2000MHz 1500MHz
Texture Filter Rate 648 GTexels/s 160 GTexels/s
Total GPU Shading Units 4608 2560
Total GPU TMUs 288 160
GPU Boost Clock Speed 2250MHz Not Known
GPU Render Output Units (ROPs) 128 64
DPFP (Double Precision Floating Point) Support No No
Features Features Sapphire Radeon RX 6800 XT Asus Radeon R9 390 DirectCU II
DirectX Version Info 12 12
OpenGL Driver Version 4.6 4.5
OpenCL Driver Version 2 2.1
Multi-display Tech Support Yes Yes
3D Support Yes Yes
Multi-GPU Support Count 0 4
Ray Tracing Support Yes No
No. of Supported Displays 4 6
Miscellaneous Miscellaneous Sapphire Radeon RX 6800 XT Asus Radeon R9 390 DirectCU II
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports Sapphire Radeon RX 6800 XT Asus Radeon R9 390 DirectCU II
HDMI Output Support Yes Yes
DisplayPort Output 2 1
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 2
Mini DisplayPort Output 0 0
General info General info Sapphire Radeon RX 6800 XT Asus Radeon R9 390 DirectCU II
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 26800 million 6200 million
Semiconductor Size 7nm 28nm
PCI Express Version 4 3
Dual-GPU Support No No
Air-water Cooling Support No No
Width Size 266.7mm 287mm
Height 119.8mm Not Known
Memory Memory Sapphire Radeon RX 6800 XT Asus Radeon R9 390 DirectCU II
Effective Memory Clock 16000MHz 6000MHz
Max Memory Bandwidth 512GB/s 384GB/s
RAM 16GB 8GB
Memory Bus Interface Width 256bit 512bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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