Gigabyte Radeon RX 6800 vs AMD Radeon HD 6990

VS
Gigabyte Radeon RX 6800
Gigabyte Radeon RX 6800 Image
AMD Radeon HD 6990
AMD Radeon HD 6990 Image
Gigabyte Radeon RX 6800
AMD Radeon HD 6990
Key Differences Key Differences Gigabyte Radeon RX 6800 AMD Radeon HD 6990
GPU Base Clock Speed 1372MHz 830MHz
GPU Boost Clock Speed 2105MHz 830MHz
Pixel Rate 202.1 GPixel/s 53.2 GPixel/s
GPU Memory Speed 2000MHz 1250MHz
GPU Render Output Units (ROPs) 96 64
No. of Supported Displays 4 Not Known
Performance Performance Gigabyte Radeon RX 6800 AMD Radeon HD 6990
GPU Base Clock Speed 1372MHz 830MHz
Pixel Rate 202.1 GPixel/s 53.2 GPixel/s
FLOPS (Floating-point Performance) 16.17 TFLOPS 5.1 TFLOPS
Texture Filter Rate 505.2 GTexels/s 159.4 GTexels/s
GPU Memory Speed 2000MHz 1250MHz
Total GPU Shading Units 3840 3072
Total GPU TMUs 240 192
GPU Boost Clock Speed 2105MHz 830MHz
GPU Render Output Units (ROPs) 96 64
DPFP (Double Precision Floating Point) Support No Yes
Features Features Gigabyte Radeon RX 6800 AMD Radeon HD 6990
DirectX Version Info 12 11
OpenGL Driver Version 4.6 4.2
OpenCL Driver Version 2 1.1
Multi-display Tech Support Yes Yes
3D Support Yes Yes
Ray Tracing Support Yes No
No. of Supported Displays 4 Not Known
PassMark (G3D) Score Not Known 3371
GPU Temperature Under Load Not Known 86°C
PassMark (DirectCompute) Benchmark Result Not Known 1256
Idle GPU Temperature Not Known 46°C
Noise Level Under Load Not Known 70.2dB
Power Consumption Under Peak Load Not Known 491W
Idle Power Consumption Not Known 171W
Idle Noise Level Not Known 44.9dB
Multi-GPU Support Count Not Known 2
SmallLuxGPU (2.0d4) Result Not Known 10490
Miscellaneous Miscellaneous Gigabyte Radeon RX 6800 AMD Radeon HD 6990
No. of USB Ports 1 No Data Found
USB Type-C Support Yes No Data Found
Ports Ports Gigabyte Radeon RX 6800 AMD Radeon HD 6990
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 Not Known
DisplayPort Output 2 1
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 1
Mini DisplayPort Output 0 4
General info General info Gigabyte Radeon RX 6800 AMD Radeon HD 6990
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 26800 million 2640 million
Semiconductor Size 7nm 40nm
PCI Express Version 4 2
Dual-GPU Support No Yes
Air-water Cooling Support No No
Width Size 267mm 295mm
Height 120mm 112.25mm
Memory Memory Gigabyte Radeon RX 6800 AMD Radeon HD 6990
Effective Memory Clock 16000MHz 5000MHz
Max Memory Bandwidth 512GB/s 320GB/s
RAM 16GB 4GB
Memory Bus Interface Width 256bit 512bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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