KFA2 GeForce RTX 3080 SG 1-Click OC vs Zotac GeForce GT 640 2GB
VS
KFA2 GeForce RTX 3080 SG 1-Click OC
Zotac GeForce GT 640 2GB
Key Differences
Performance
Features
Ports
General info
Memory
KFA2 GeForce RTX 3080 SG 1-Click OC
Zotac GeForce GT 640 2GB
Key Differences
|
KFA2 GeForce RTX 3080 SG 1-Click OC | Zotac GeForce GT 640 2GB |
|---|---|---|
| GPU Base Clock Speed | 1440MHz | 1046MHz |
| GPU Boost Clock Speed | 1710MHz | Not Known |
| Pixel Rate | 164.2 GPixel/s | 7.22 GPixel/s |
| GPU Memory Speed | 1188MHz | 1250MHz |
| GPU Render Output Units (ROPs) | 96 | 16 |
| No. of Supported Displays | Not Known | Not Known |
Performance
|
KFA2 GeForce RTX 3080 SG 1-Click OC | Zotac GeForce GT 640 2GB |
|---|---|---|
| GPU Base Clock Speed | 1440MHz | 1046MHz |
| Pixel Rate | 164.2 GPixel/s | 7.22 GPixel/s |
| FLOPS (Floating-point Performance) | 29.77 TFLOPS | 0.69 TFLOPS |
| GPU Memory Speed | 1188MHz | 1250MHz |
| Texture Filter Rate | 465.1 GTexels/s | 28.8 GTexels/s |
| Total GPU Shading Units | 8704 | 384 |
| Total GPU TMUs | 272 | 32 |
| GPU Boost Clock Speed | 1710MHz | Not Known |
| GPU Render Output Units (ROPs) | 96 | 16 |
| DPFP (Double Precision Floating Point) Support |  No
|
No
|
Features
|
KFA2 GeForce RTX 3080 SG 1-Click OC | Zotac GeForce GT 640 2GB |
|---|---|---|
| DirectX Version Info | 12 | 11 |
| OpenGL Driver Version | 4.6 | 4.3 |
| OpenCL Driver Version | 2 | 1.1 |
| Multi-display Tech Support |  Yes
|
Yes
|
| 3D Support | Yes
|
Yes
|
| Ray Tracing Support | Yes
|
No
|
Ports
|
KFA2 GeForce RTX 3080 SG 1-Click OC | Zotac GeForce GT 640 2GB |
|---|---|---|
| HDMI Output Support | Yes
|
Yes
|
| GPU HDMI Version | 2.1 | Not Known |
| DisplayPort Output | 3 | 0 |
| No. of HDMI Ports | 1 | Not Known |
| DVI Output Ports | 0 | 1 |
| Mini DisplayPort Output | 0 | 0 |
General info
|
KFA2 GeForce RTX 3080 SG 1-Click OC | Zotac GeForce GT 640 2GB |
|---|---|---|
| TDP (Thermal Design Point) | No Data Found | No Data Found |
| Transistor Count | 28000 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 | 329mm | 145mm |
| Height | 130mm | 111mm |
Memory
|
KFA2 GeForce RTX 3080 SG 1-Click OC | Zotac GeForce GT 640 2GB |
|---|---|---|
| Effective Memory Clock | 19000MHz | 5000MHz |
| Max Memory Bandwidth | 720GB/s | 28.5GB/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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