Zotac GTX 1080 Ti vs EVGA GeForce GTX 640 4GB
VS
Zotac GTX 1080 Ti
EVGA GeForce GTX 640 4GB
Key Differences
Performance
Features
Ports
General info
Memory
Zotac GTX 1080 Ti
EVGA GeForce GTX 640 4GB
Key Differences
|
Zotac GTX 1080 Ti | EVGA GeForce GTX 640 4GB |
|---|---|---|
| GPU Base Clock Speed | 1481MHz | 900MHz |
| GPU Boost Clock Speed | 1582MHz | Not Known |
| Pixel Rate | 139.2 GPixel/s | 7.22 GPixel/s |
| GPU Memory Speed | 1376MHz | 901MHz |
| GPU Render Output Units (ROPs) | 88 | 16 |
| No. of Supported Displays | Not Known | Not Known |
Performance
|
Zotac GTX 1080 Ti | EVGA GeForce GTX 640 4GB |
|---|---|---|
| GPU Base Clock Speed | 1481MHz | 900MHz |
| Pixel Rate | 139.2 GPixel/s | 7.22 GPixel/s |
| FLOPS (Floating-point Performance) | 11.34 TFLOPS | 0.69 TFLOPS |
| Texture Filter Rate | 354.4 GTexels/s | 28.8 GTexels/s |
| GPU Memory Speed | 1376MHz | 901MHz |
| Total GPU Shading Units | 3584 | 384 |
| Total GPU TMUs | 224 | 32 |
| GPU Boost Clock Speed | 1582MHz | Not Known |
| GPU Render Output Units (ROPs) | 88 | 16 |
| DPFP (Double Precision Floating Point) Support |  No
|
No
|
Features
|
Zotac GTX 1080 Ti | EVGA GeForce GTX 640 4GB |
|---|---|---|
| DirectX Version Info | 12 | 11 |
| 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 |
Ports
|
Zotac GTX 1080 Ti | EVGA GeForce GTX 640 4GB |
|---|---|---|
| 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 | 2 |
| Mini DisplayPort Output | 0 | 0 |
General info
|
Zotac GTX 1080 Ti | EVGA GeForce GTX 640 4GB |
|---|---|---|
| TDP (Thermal Design Point) | No Data Found | No Data Found |
| Transistor Count | 12000 million | 1270 million |
| Semiconductor Size | 16nm | 28nm |
| PCI Express Version | 3 | 3 |
| Dual-GPU Support | No
|
No
|
| Width Size | 266.7mm | 170mm |
| Height | 111.6mm | 111mm |
| Air-water Cooling Support | No
|
No
|
Memory
|
Zotac GTX 1080 Ti | EVGA GeForce GTX 640 4GB |
|---|---|---|
| Effective Memory Clock | 11008MHz | 1802MHz |
| Max Memory Bandwidth | 484.4GB/s | 28.8GB/s |
| RAM | 11GB | 4GB |
| Memory Bus Interface Width | 352bit | 128bit |
| GDDR Memory Version | 5 | Not Known |
| ECC (Error-Correcting Code) Memory Support | No
|
No
|
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