PowerColor Red Devil Radeon RX 6800 XT vs Nvidia GeForce GTX 660 OEM
VS
PowerColor Red Devil Radeon RX 6800 XT
Nvidia GeForce GTX 660 OEM
Key Differences
Performance
Features
Ports
General info
Memory
PowerColor Red Devil Radeon RX 6800 XT
Nvidia GeForce GTX 660 OEM
Key Differences
|
PowerColor Red Devil Radeon RX 6800 XT | Nvidia GeForce GTX 660 OEM |
|---|---|---|
| GPU Base Clock Speed | 1900MHz | 823MHz |
| GPU Boost Clock Speed | 2340MHz | 888MHz |
| Pixel Rate | 299.5 GPixel/s | 19.8 GPixel/s |
| GPU Memory Speed | 2000MHz | Not Known |
| GPU Render Output Units (ROPs) | 128 | 32 |
| No. of Supported Displays | 4 | 4 |
Performance
|
PowerColor Red Devil Radeon RX 6800 XT | Nvidia GeForce GTX 660 OEM |
|---|---|---|
| GPU Base Clock Speed | 1900MHz | 823MHz |
| Pixel Rate | 299.5 GPixel/s | 19.8 GPixel/s |
| FLOPS (Floating-point Performance) | 21.57 TFLOPS | 1.9 TFLOPS |
| GPU Memory Speed | 2000MHz | Not Known |
| Texture Filter Rate | 673.9 GTexels/s | 79 GTexels/s |
| Total GPU Shading Units | 4608 | 1152 |
| Total GPU TMUs | 288 | 98 |
| GPU Boost Clock Speed | 2340MHz | 888MHz |
| GPU Render Output Units (ROPs) | 128 | 32 |
| DPFP (Double Precision Floating Point) Support |  No
|
No
|
Features
|
PowerColor Red Devil Radeon RX 6800 XT | Nvidia GeForce GTX 660 OEM |
|---|---|---|
| DirectX Version Info | 12 | 11 |
| OpenGL Driver Version | 4.6 | 4.3 |
| OpenCL Driver Version | 2.1 | 1.1 |
| Multi-display Tech Support |  Yes
|
No
|
| 3D Support | Yes
|
Yes
|
| Ray Tracing Support | Yes
|
No
|
| No. of Supported Displays | 4 | 4 |
Ports
|
PowerColor Red Devil Radeon RX 6800 XT | Nvidia GeForce GTX 660 OEM |
|---|---|---|
| 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 | Not Known |
General info
|
PowerColor Red Devil Radeon RX 6800 XT | Nvidia GeForce GTX 660 OEM |
|---|---|---|
| TDP (Thermal Design Point) | No Data Found | No Data Found |
| Transistor Count | 26800 million | 3540 million |
| Semiconductor Size | 7nm | 28nm |
| PCI Express Version | 4 | 3 |
| Dual-GPU Support | No
|
No
|
| Air-water Cooling Support | No
|
No
|
| Width Size | 320mm | 241mm |
| Height | 135mm | 111mm |
Memory
|
PowerColor Red Devil Radeon RX 6800 XT | Nvidia GeForce GTX 660 OEM |
|---|---|---|
| Effective Memory Clock | 16000MHz | 5600MHz |
| Max Memory Bandwidth | 512GB/s | 179GB/s |
| RAM | 16GB | 2GB |
| Memory Bus Interface Width | 256bit | 256bit |
| GDDR Memory Version | 6 | 5 |
| ECC (Error-Correcting Code) Memory Support | No
|
No
|
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