MSI GTX 1080 Ti Lightning X vs MSI GeForce GT 640 4GB
VS
MSI GTX 1080 Ti Lightning X
MSI GeForce GT 640 4GB
Key Differences
Performance
Features
Ports
General info
Memory
MSI GTX 1080 Ti Lightning X
MSI GeForce GT 640 4GB
Key Differences
|
MSI GTX 1080 Ti Lightning X | MSI GeForce GT 640 4GB |
|---|---|---|
| GPU Base Clock Speed | 1544MHz | 900MHz |
| GPU Boost Clock Speed | 1657MHz | Not Known |
| Pixel Rate | 145.8 GPixel/s | 7.22 GPixel/s |
| GPU Memory Speed | 1390MHz | 891MHz |
| GPU Render Output Units (ROPs) | 88 | 16 |
| No. of Supported Displays | 4 | Not Known |
Performance
|
MSI GTX 1080 Ti Lightning X | MSI GeForce GT 640 4GB |
|---|---|---|
| GPU Base Clock Speed | 1544MHz | 900MHz |
| Pixel Rate | 145.8 GPixel/s | 7.22 GPixel/s |
| FLOPS (Floating-point Performance) | 11.88 TFLOPS | 0.69 TFLOPS |
| Texture Filter Rate | 371.2 GTexels/s | 28.8 GTexels/s |
| GPU Memory Speed | 1390MHz | 891MHz |
| Total GPU Shading Units | 3584 | 384 |
| Total GPU TMUs | 224 | 32 |
| GPU Boost Clock Speed | 1657MHz | Not Known |
| GPU Render Output Units (ROPs) | 88 | 16 |
| DPFP (Double Precision Floating Point) Support |  No
|
No
|
Features
|
MSI GTX 1080 Ti Lightning X | MSI GeForce GT 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 |
| No. of Supported Displays | 4 | Not Known |
Ports
|
MSI GTX 1080 Ti Lightning X | MSI GeForce GT 640 4GB |
|---|---|---|
| HDMI Output Support | Yes
|
Yes
|
| GPU HDMI Version | 2 | Not Known |
| DisplayPort Output | 2 | 0 |
| No. of HDMI Ports | 2 | Not Known |
| DVI Output Ports | 1 | 1 |
| Mini DisplayPort Output | 0 | 0 |
General info
|
MSI GTX 1080 Ti Lightning X | MSI GeForce GT 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 | 320mm | 154mm |
| Height | 140mm | 111mm |
| Air-water Cooling Support | No
|
No
|
Memory
|
MSI GTX 1080 Ti Lightning X | MSI GeForce GT 640 4GB |
|---|---|---|
| Effective Memory Clock | 11120MHz | 1782MHz |
| Max Memory Bandwidth | 489.3GB/s | 28.5GB/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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