AMD Radeon R7 240 vs NVIDIA GeForce GT 640
Graphics Processor
| GPU model | Oland | GK107 |
|---|---|---|
| GPU variant | Oland LE | GK107-300-A2 |
| Architecture | GCN 1.0 | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 950 million | 1,270 million |
| Die size | 77 mm² | 118 mm² |
Graphics Card
| Release date | Oct 8th, 2013 | Jun 5th, 2012 |
|---|---|---|
| Generation | Volcanic Islands | GeForce 600 |
| Production | End-of-life | End-of-life |
| Launch price | 69 USD | 99 USD |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Reviews | 5 in our database | — |
| Predecessor | Sea Islands | GeForce 500 |
| Successor | Pirate Islands | GeForce 700 |
Clocks
| Base clock | 650 MHz | — |
|---|---|---|
| Boost clock | 700 MHz | — |
| Memory clock | 1150 MHz 4.6 Gbps effective | 891 MHz 1782 Mbps effective |
| GPU clock | — | 902 MHz |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | DDR3 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 73.60 GB/s | 28.51 GB/s |
Render Configuration
| Shading units | 320 | 384 |
|---|---|---|
| TMUs | 20 | 32 |
| ROPs | 8 | 16 |
| Compute units | 5 | — |
| Cache L1 | 16 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 256 KB | 256 KB |
| SMX count | — | 2 |
Performance
| Pixel rate | 5.600 GPixel/s | 7.216 GPixel/s |
|---|---|---|
| Texture rate | 14.00 GTexel/s | 28.86 GTexel/s |
| FP32 (float) performance | 448.0 GFLOPS | 692.7 GFLOPS |
| FP64 (double) performance | 28.00 GFLOPS (1:16) | 28.86 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| Length | 168 mm 6.6 inches | 145 mm 5.7 inches |
| TDP | 30 W | 65 W |
| Suggested PSU | 200 W | 250 W |
| Outputs | 1x DVI1x HDMI1x VGA | 1x DVI1x HDMI1x DisplayPort |
| Power connectors | None | None |
| Board number | C552, C577 | P2011 |
API Support & Features
| DirectX | 12 (11_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader model | 5.1 | 5.1 |
| CUDA | — | 3.0 |
