Zotac GeForce GTX 1080 Ti AMP! Edition vs Nvidia GeForce GT 640 GDDR5
VS
Zotac GeForce GTX 1080 Ti AMP! Edition
Nvidia GeForce GT 640 GDDR5
Key Differences
Performance
Features
Ports
General info
Memory
Zotac GeForce GTX 1080 Ti AMP! Edition
Nvidia GeForce GT 640 GDDR5
Key Differences
|
Zotac GeForce GTX 1080 Ti AMP! Edition | Nvidia GeForce GT 640 GDDR5 |
|---|---|---|
| GPU Base Clock Speed | 1569MHz | 1046MHz |
| GPU Boost Clock Speed | 1683MHz | Not Known |
| Pixel Rate | 148.1 GPixel/s | 8.37 GPixel/s |
| GPU Memory Speed | 1376MHz | 1252MHz |
| GPU Render Output Units (ROPs) | 88 | 8 |
| No. of Supported Displays | 4 | Not Known |
Performance
|
Zotac GeForce GTX 1080 Ti AMP! Edition | Nvidia GeForce GT 640 GDDR5 |
|---|---|---|
| GPU Base Clock Speed | 1569MHz | 1046MHz |
| Pixel Rate | 148.1 GPixel/s | 8.37 GPixel/s |
| FLOPS (Floating-point Performance) | 12.06 TFLOPS | 0.8 TFLOPS |
| GPU Memory Speed | 1376MHz | 1252MHz |
| Texture Filter Rate | 377 GTexels/s | 16.7 GTexels/s |
| Total GPU Shading Units | 3584 | 384 |
| Total GPU TMUs | 224 | 16 |
| GPU Boost Clock Speed | 1683MHz | Not Known |
| GPU Render Output Units (ROPs) | 88 | 8 |
| DPFP (Double Precision Floating Point) Support |  No
|
No
|
Features
|
Zotac GeForce GTX 1080 Ti AMP! Edition | Nvidia GeForce GT 640 GDDR5 |
|---|---|---|
| DirectX Version Info | 12 | 11.1 |
| OpenGL Driver Version | 4.5 | 4.3 |
| OpenCL Driver Version | 1.2 | 1.1 |
| Multi-display Tech Support |  Yes
|
Yes
|
| PassMark (G3D) Score | 13470 | 644 |
| GPU Temperature Under Load | 84°C | Not Known |
| PassMark (DirectCompute) Benchmark Result | 9456 | 1297 |
| Idle GPU Temperature | 33°C | Not Known |
| 3D Support | Yes
|
Yes
|
| Noise Level Under Load | 55.4dB | Not Known |
| Idle Power Consumption | 82W | Not Known |
| Idle Noise Level | 40.7dB | Not Known |
| Ray Tracing Support | Yes
|
No
|
| Multi-GPU Support Count | 2 | Not Known |
| No. of Supported Displays | 4 | Not Known |
Ports
|
Zotac GeForce GTX 1080 Ti AMP! Edition | Nvidia GeForce GT 640 GDDR5 |
|---|---|---|
| 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 | 1 | 1 |
| Mini DisplayPort Output | 0 | 0 |
General info
|
Zotac GeForce GTX 1080 Ti AMP! Edition | Nvidia GeForce GT 640 GDDR5 |
|---|---|---|
| TDP (Thermal Design Point) | No Data Found | No Data Found |
| Transistor Count | 12000 million | 1270 million |
| Semiconductor Size | 16nm | 28nm |
| PCI Express Version | 3 | 2 |
| Dual-GPU Support | No
|
No
|
| Width Size | 300mm | 145mm |
| Height | 148mm | 111mm |
| Air-water Cooling Support | No
|
No
|
Memory
|
Zotac GeForce GTX 1080 Ti AMP! Edition | Nvidia GeForce GT 640 GDDR5 |
|---|---|---|
| Effective Memory Clock | 11008MHz | 5008MHz |
| Max Memory Bandwidth | 484.4GB/s | 40GB/s |
| RAM | 11GB | 1GB |
| Memory Bus Interface Width | 352bit | 64bit |
| GDDR Memory Version | 5 | 5 |
| ECC (Error-Correcting Code) Memory Support | No
|
No
|
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