PowerColor Red Devil Radeon RX 6800 XT vs HIS Radeon R9 390X IceQ X2 OC

VS
PowerColor Red Devil Radeon RX 6800 XT
PowerColor Red Devil Radeon RX 6800 XT Image
HIS Radeon R9 390X IceQ X2 OC
HIS Radeon R9 390X IceQ X2 OC Image
PowerColor Red Devil Radeon RX 6800 XT
HIS Radeon R9 390X IceQ X2 OC
Key Differences Key Differences PowerColor Red Devil Radeon RX 6800 XT HIS Radeon R9 390X IceQ X2 OC
GPU Base Clock Speed 1900MHz 1070MHz
GPU Boost Clock Speed 2340MHz Not Known
Pixel Rate 299.5 GPixel/s 68.5 GPixel/s
GPU Memory Speed 2000MHz 1500MHz
GPU Render Output Units (ROPs) 128 64
No. of Supported Displays 4 6
Performance Performance PowerColor Red Devil Radeon RX 6800 XT HIS Radeon R9 390X IceQ X2 OC
GPU Base Clock Speed 1900MHz 1070MHz
Pixel Rate 299.5 GPixel/s 68.5 GPixel/s
FLOPS (Floating-point Performance) 21.57 TFLOPS 6.03 TFLOPS
GPU Memory Speed 2000MHz 1500MHz
Texture Filter Rate 673.9 GTexels/s 188.3 GTexels/s
Total GPU Shading Units 4608 2816
Total GPU TMUs 288 176
GPU Boost Clock Speed 2340MHz Not Known
GPU Render Output Units (ROPs) 128 64
DPFP (Double Precision Floating Point) Support No No
Features Features PowerColor Red Devil Radeon RX 6800 XT HIS Radeon R9 390X IceQ X2 OC
DirectX Version Info 12 12
OpenGL Driver Version 4.6 4.5
OpenCL Driver Version 2.1 2.1
Multi-display Tech Support Yes Yes
3D Support Yes Yes
Ray Tracing Support Yes No
No. of Supported Displays 4 6
Multi-GPU Support Count Not Known 4
Ports Ports PowerColor Red Devil Radeon RX 6800 XT HIS Radeon R9 390X IceQ X2 OC
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 Not Known
DisplayPort Output 3 1
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 2
Mini DisplayPort Output 0 0
General info General info PowerColor Red Devil Radeon RX 6800 XT HIS Radeon R9 390X IceQ X2 OC
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 320mm 297mm
Height 135mm 143mm
Memory Memory PowerColor Red Devil Radeon RX 6800 XT HIS Radeon R9 390X IceQ X2 OC
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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