Nvidia GeForce RTX 3090 vs AMD Radeon HD 6990

VS
Nvidia GeForce RTX 3090
Nvidia GeForce RTX 3090 Image
AMD Radeon HD 6990
AMD Radeon HD 6990 Image
Nvidia GeForce RTX 3090
AMD Radeon HD 6990
Key Differences Key Differences Nvidia GeForce RTX 3090 AMD Radeon HD 6990
GPU Base Clock Speed 1395MHz 830MHz
GPU Boost Clock Speed 1695MHz 830MHz
Pixel Rate 189.8 GPixel/s 53.2 GPixel/s
GPU Memory Speed 1219MHz 1250MHz
GPU Render Output Units (ROPs) 112 64
No. of Supported Displays Not Known Not Known
Performance Performance Nvidia GeForce RTX 3090 AMD Radeon HD 6990
GPU Base Clock Speed 1395MHz 830MHz
Pixel Rate 189.8 GPixel/s 53.2 GPixel/s
FLOPS (Floating-point Performance) 35.58 TFLOPS 5.1 TFLOPS
GPU Memory Speed 1219MHz 1250MHz
Texture Filter Rate 556 GTexels/s 159.4 GTexels/s
Total GPU Shading Units 10496 3072
Total GPU TMUs 328 192
GPU Boost Clock Speed 1695MHz 830MHz
GPU Render Output Units (ROPs) 112 64
DPFP (Double Precision Floating Point) Support No Yes
Features Features Nvidia GeForce RTX 3090 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
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
Ports Ports Nvidia GeForce RTX 3090 AMD Radeon HD 6990
HDMI Output Support Yes Yes
GPU HDMI Version 2.1 Not Known
DisplayPort Output 1 1
No. of HDMI Ports 3 Not Known
DVI Output Ports 0 1
Mini DisplayPort Output 0 4
General info General info Nvidia GeForce RTX 3090 AMD Radeon HD 6990
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 28300 million 2640 million
Semiconductor Size 8nm 40nm
PCI Express Version 4 2
Dual-GPU Support No Yes
Air-water Cooling Support No No
Width Size 313mm 295mm
Height 138mm 112.25mm
Memory Memory Nvidia GeForce RTX 3090 AMD Radeon HD 6990
Effective Memory Clock 19500MHz 5000MHz
Max Memory Bandwidth 936GB/s 320GB/s
RAM 24GB 4GB
Memory Bus Interface Width 384bit 512bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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