The NVIDIA GeForce GT 640 OEM 1 GB graphics card, based on the Kepler architecture, offers efficient performance with 384 shading units, 32 TMUs, and 16 ROPs. It features 1,024 MB of GDDR5 memory on a 128-bit interface, providing a memory bandwidth of 80.00 GB/s. This single-slot card supports a PCIe 3.0 x16 interface and boasts clock speeds of up to 954 MHz for the GPU and 1250 MHz for memory, delivering 732.7 GFLOPS of FP32 performance. Outputs include DVI, HDMI 1.4a, and DisplayPort 1.2, making it suitable for diverse display setups.
| GPU Name | GeForce GT 640 |
|---|---|
| Architecture | Kepler |
| Foundry | TSMC |
| Process Size | 28 nm |
| Transistors | 1,270 million |
| Density | 10.8M / mm² |
| Die Size | 118 mm² |
| Chip Package | BGA-908 |
| Generation | GeForce 600 |
| Production | End-of-life |
| Bus Interface | PCIe 3.0 x16 |
| Base Clock | 954 MHz (+20%) |
| Shader Clock | * |
| Memory Clock | 1250 MHz (+40%) |
| Memory Size | 1024 MB |
| Memory Type | GDDR5 |
| Memory Bus | 128 bit |
| Bandwidth | 80.00 GB/s |
| Shading Units | 384 |
| TMUs | 32 |
| ROPs | 16 |
| SM Count | 2 |
| L1 Cache | 16 KB (per SMX) |
| L2 Cache | 256 KB |
| Pixel Rate | 7.632 GPixel/s |
| Texture Rate | 30.53 GTexel/s |
| FP32 (float) | 732.7 GFLOPS |
| FP64 (double) | 30.53 GFLOPS (1:24) |
| Slot Width | Single-slot |
| Length | * |
| TDP | 50 W |
| Suggested PSU | 250 W |
| Outputs | 1x DVI |
| Power Connectors | None |
| Board Number | P2010 SKU 3, |
| DirectX | 12 (11_0) |
| OpenGL | 4.6 |
| OpenCL | 3.0 |
| Vulkan | 1.2.175 |
| CUDA | 3.0 |
| Shader Model | 6.5 (5.1) |
| Condition | New |
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