Zotac GeForce RTX 2080 Super Twin Fan vs Zalman HD 7990

VS
Zotac GeForce RTX 2080 Super Twin Fan
Zotac GeForce RTX 2080 Super Twin Fan Image
Zalman HD 7990
Zalman HD 7990 Image
Zotac GeForce RTX 2080 Super Twin Fan
Zalman HD 7990
Key Differences Key Differences Zotac GeForce RTX 2080 Super Twin Fan Zalman HD 7990
GPU Base Clock Speed 1650MHz 950MHz
GPU Boost Clock Speed 1815MHz 1000MHz
Pixel Rate 116.2 GPixel/s 60.8 GPixel/s
GPU Memory Speed 1937MHz 1500MHz
GPU Render Output Units (ROPs) 64 64
No. of Supported Displays 4 6
Performance Performance Zotac GeForce RTX 2080 Super Twin Fan Zalman HD 7990
GPU Base Clock Speed 1650MHz 950MHz
Pixel Rate 116.2 GPixel/s 60.8 GPixel/s
FLOPS (Floating-point Performance) 11.15 TFLOPS 7.78 TFLOPS
GPU Memory Speed 1937MHz 1500MHz
Texture Filter Rate 348.5 GTexels/s 144 GTexels/s
Total GPU Shading Units 3072 4096
Total GPU TMUs 192 256
GPU Boost Clock Speed 1815MHz 1000MHz
GPU Render Output Units (ROPs) 64 64
DPFP (Double Precision Floating Point) Support No Yes
Features Features Zotac GeForce RTX 2080 Super Twin Fan Zalman HD 7990
DirectX Version Info 12 11.1
OpenGL Driver Version 4.5 4.3
OpenCL Driver Version 1.2 1.2
Multi-display Tech Support Yes Yes
GPU Temperature Under Load 77°C 82°C
Idle GPU Temperature 30°C 39°C
Noise Level Under Load 46.5dB 54.8dB
3D Support Yes Yes
Idle Power Consumption 54W 127W
Idle Noise Level 40.3dB 39.2dB
Multi-GPU Support Count 2 4
No. of Supported Displays 4 6
PassMark (G3D) Score Not Known 5105
3DMark Vantage Texture Fill Result Not Known 211.8GTexels/s
3DMark Vantage Pixel Fill Result Not Known 26.2GPixel/s
PassMark (DirectCompute) Benchmark Result Not Known 2755
Ray Tracing Support No No
Power Consumption Under Peak Load Not Known 552W
Ports Ports Zotac GeForce RTX 2080 Super Twin Fan Zalman HD 7990
HDMI Output Support Yes Yes
GPU HDMI Version 2 Not Known
DisplayPort Output 3 0
No. of HDMI Ports 1 Not Known
DVI Output Ports 0 1
Mini DisplayPort Output 0 4
General info General info Zotac GeForce RTX 2080 Super Twin Fan Zalman HD 7990
TDP (Thermal Design Point) No Data Found No Data Found
Transistor Count 13600 million 4313 million
Semiconductor Size 12nm 28nm
PCI Express Version 3 3
Dual-GPU Support No Yes
Air-water Cooling Support No No
Width Size 268mm 305mm
Height 113mm 110mm
Memory Memory Zotac GeForce RTX 2080 Super Twin Fan Zalman HD 7990
Effective Memory Clock 15496MHz 6000MHz
Max Memory Bandwidth 496GB/s 576GB/s
RAM 8GB 6GB
Memory Bus Interface Width 256bit 768bit
GDDR Memory Version 6 5
ECC (Error-Correcting Code) Memory Support No No

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