Gigabyte GeForce RTX 3080 Gaming OC vs Nvidia GeForce GT 640 OEM GDDR5 2GB
VS
Gigabyte GeForce RTX 3080 Gaming OC
Nvidia GeForce GT 640 OEM GDDR5 2GB
Key Differences
Performance
Features
Ports
General info
Memory
Gigabyte GeForce RTX 3080 Gaming OC
Nvidia GeForce GT 640 OEM GDDR5 2GB
Key Differences
|
Gigabyte GeForce RTX 3080 Gaming OC | Nvidia GeForce GT 640 OEM GDDR5 2GB |
|---|---|---|
| GPU Base Clock Speed | 1440MHz | 950MHz |
| GPU Boost Clock Speed | 1800MHz | Not Known |
| Pixel Rate | 172.8 GPixel/s | 7.63 GPixel/s |
| GPU Memory Speed | 1188MHz | 1250MHz |
| GPU Render Output Units (ROPs) | 96 | Not Known |
| No. of Supported Displays | 4 | Not Known |
Performance
|
Gigabyte GeForce RTX 3080 Gaming OC | Nvidia GeForce GT 640 OEM GDDR5 2GB |
|---|---|---|
| GPU Base Clock Speed | 1440MHz | 950MHz |
| Pixel Rate | 172.8 GPixel/s | 7.63 GPixel/s |
| FLOPS (Floating-point Performance) | 31.33 TFLOPS | 0.73 TFLOPS |
| GPU Memory Speed | 1188MHz | 1250MHz |
| Texture Filter Rate | 489.6 GTexels/s | 30.4 GTexels/s |
| Total GPU Shading Units | 8704 | 384 |
| Total GPU TMUs | 272 | Not Known |
| GPU Boost Clock Speed | 1800MHz | Not Known |
| GPU Render Output Units (ROPs) | 96 | Not Known |
| DPFP (Double Precision Floating Point) Support |  No
|
No
|
Features
|
Gigabyte GeForce RTX 3080 Gaming OC | Nvidia GeForce GT 640 OEM GDDR5 2GB |
|---|---|---|
| DirectX Version Info | 12 | 11 |
| OpenGL Driver Version | 4.6 | 4.3 |
| OpenCL Driver Version | 2 | Not Known |
| Multi-display Tech Support |  Yes
|
No
|
| 3D Support | Yes
|
Yes
|
| Ray Tracing Support | Yes
|
No
|
| No. of Supported Displays | 4 | Not Known |
| PassMark (G3D) Score | Not Known | 644 |
| PassMark (DirectCompute) Benchmark Result | Not Known | 1297 |
Ports
|
Gigabyte GeForce RTX 3080 Gaming OC | Nvidia GeForce GT 640 OEM GDDR5 2GB |
|---|---|---|
| HDMI Output Support | Yes
|
Yes
|
| GPU HDMI Version | 2.1 | Not Known |
| DisplayPort Output | 3 | 1 |
| No. of HDMI Ports | 2 | Not Known |
| DVI Output Ports | 0 | 0 |
| Mini DisplayPort Output | 0 | 0 |
General info
|
Gigabyte GeForce RTX 3080 Gaming OC | Nvidia GeForce GT 640 OEM GDDR5 2GB |
|---|---|---|
| TDP (Thermal Design Point) | No Data Found | No Data Found |
| Transistor Count | 28300 million | 1270 million |
| Semiconductor Size | 8nm | 28nm |
| PCI Express Version | 4 | 3 |
| Dual-GPU Support | No
|
No
|
| Air-water Cooling Support | No
|
No
|
| Width Size | 320mm | 145mm |
| Height | 129mm | 111mm |
Memory
|
Gigabyte GeForce RTX 3080 Gaming OC | Nvidia GeForce GT 640 OEM GDDR5 2GB |
|---|---|---|
| Effective Memory Clock | 19000MHz | 5000MHz |
| Max Memory Bandwidth | 760GB/s | 80GB/s |
| RAM | 10GB | 2GB |
| Memory Bus Interface Width | 320bit | 128bit |
| GDDR Memory Version | 6 | 5 |
| ECC (Error-Correcting Code) Memory Support | No
|
No
|
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