Gigabyte GeForce RTX 2080 Ti WindForce OC vs Nvidia GeForce GTX 645 OEM
VS
Gigabyte GeForce RTX 2080 Ti WindForce OC
Nvidia GeForce GTX 645 OEM
Key Differences
Performance
Features
Miscellaneous
Ports
General info
Memory
Gigabyte GeForce RTX 2080 Ti WindForce OC
Nvidia GeForce GTX 645 OEM
Key Differences
|
Gigabyte GeForce RTX 2080 Ti WindForce OC | Nvidia GeForce GTX 645 OEM |
|---|---|---|
| GPU Base Clock Speed | 1350MHz | 823MHz |
| GPU Boost Clock Speed | 1620MHz | 888MHz |
| Pixel Rate | 142.6 GPixel/s | 9.88 GPixel/s |
| GPU Memory Speed | 1750MHz | 1000MHz |
| GPU Render Output Units (ROPs) | 88 | 16 |
| No. of Supported Displays | 4 | 4 |
Performance
|
Gigabyte GeForce RTX 2080 Ti WindForce OC | Nvidia GeForce GTX 645 OEM |
|---|---|---|
| GPU Base Clock Speed | 1350MHz | 823MHz |
| Pixel Rate | 142.6 GPixel/s | 9.88 GPixel/s |
| FLOPS (Floating-point Performance) | 14.1 TFLOPS | 0.95 TFLOPS |
| GPU Memory Speed | 1750MHz | 1000MHz |
| Texture Filter Rate | 440.6 GTexels/s | 39.5 GTexels/s |
| Total GPU Shading Units | 4352 | 576 |
| Total GPU TMUs | 272 | 48 |
| GPU Boost Clock Speed | 1620MHz | 888MHz |
| GPU Render Output Units (ROPs) | 88 | 16 |
| DPFP (Double Precision Floating Point) Support |  No
|
No
|
Features
|
Gigabyte GeForce RTX 2080 Ti WindForce OC | Nvidia GeForce GTX 645 OEM |
|---|---|---|
| DirectX Version Info | 12 | 11 |
| OpenGL Driver Version | 4.5 | 4.3 |
| OpenCL Driver Version | 2 | 1.1 |
| Multi-display Tech Support |  Yes
|
Yes
|
| 3D Support | Yes
|
Yes
|
| Multi-GPU Support Count | 2 | Not Known |
| No. of Supported Displays | 4 | 4 |
| PassMark (G3D) Score | Not Known | 1977 |
| PassMark (DirectCompute) Benchmark Result | Not Known | 943 |
| Ray Tracing Support | No
|
No
|
Miscellaneous
|
Gigabyte GeForce RTX 2080 Ti WindForce OC | Nvidia GeForce GTX 645 OEM |
|---|---|---|
| No. of USB Ports | 1 | No Data Found |
| USB Type-C Support | Yes
|
No Data Found |
Ports
|
Gigabyte GeForce RTX 2080 Ti WindForce OC | Nvidia GeForce GTX 645 OEM |
|---|---|---|
| HDMI Output Support | Yes
|
Yes
|
| GPU HDMI Version | 2 | 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
|
Gigabyte GeForce RTX 2080 Ti WindForce OC | Nvidia GeForce GTX 645 OEM |
|---|---|---|
| TDP (Thermal Design Point) | No Data Found | No Data Found |
| Transistor Count | 18600 million | 2540 million |
| Semiconductor Size | 12nm | 28nm |
| PCI Express Version | 3 | 3 |
| Dual-GPU Support | No
|
No
|
| Air-water Cooling Support | No
|
No
|
| Width Size | 280.35mm | 145mm |
| Height | 116.45mm | 111mm |
Memory
|
Gigabyte GeForce RTX 2080 Ti WindForce OC | Nvidia GeForce GTX 645 OEM |
|---|---|---|
| Effective Memory Clock | 14000MHz | 4000MHz |
| Max Memory Bandwidth | 616GB/s | 64GB/s |
| RAM | 11GB | 1GB |
| Memory Bus Interface Width | 352bit | 128bit |
| GDDR Memory Version | 6 | 5 |
| ECC (Error-Correcting Code) Memory Support | No
|
No
|
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