ATI Mobility Radeon HD 3470 vs NVIDIA GeForce GT 640M LE
Graphics Processor
| GPU model | M82 | GF108 |
|---|---|---|
| Architecture | TeraScale | Fermi |
| Foundry | TSMC | TSMC |
| Manufacturing process | 55 nm | 40 nm |
| Number of transistors | 181 million | 585 million |
| Die size | 67 mm² | 116 mm² |
Mobile graphics
| Release date | Jan 7th, 2008 | May 4th, 2012 |
|---|---|---|
| Generation | M8x (Mobility HD 3400) | GeForce 600M |
| Production | End-of-life | End-of-life |
| Interface | MXM-II | PCIe 2.0 x16 |
| Reviews | 2 in our database | 2 in our database |
| Predecessor | M7x | GeForce 500M |
| Successor | M9x | GeForce 700M |
Clocks
| GPU clock | 680 MHz | 753 MHz |
|---|---|---|
| Memory clock | 400 MHz 800 Mbps effective | 785 MHz 3.1 Gbps effective |
| Shader clock | — | 1505 MHz |
Memory Configuration
| Memory size | 256 MB | 2 GB |
|---|---|---|
| Memory type | DDR2 | GDDR5 |
| Memory bus width | 64 bit | 128 bit |
| Bandwidth | 6.400 GB/s | 50.24 GB/s |
Render Configuration
| Shading units | 40 | 96 |
|---|---|---|
| TMUs | 4 | 16 |
| ROPs | 4 | 4 |
| Compute units | 2 | — |
| Cache L2 | 64 KB | 256 KB |
| SM count | — | 2 |
| Cache L1 | — | 64 KB (per SM) |
Performance
| Pixel rate | 2.720 GPixel/s | 3.012 GPixel/s |
|---|---|---|
| Texture rate | 2.720 GTexel/s | 12.05 GTexel/s |
| FP32 (float) performance | 54.40 GFLOPS | 289.0 GFLOPS |
| FP64 (double) performance | — | 24.08 GFLOPS (1:12) |
Dimensions & Outputs
| Slot width | MXM Module | — |
|---|---|---|
| TDP | unknown | 32 W |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 10.1 | 12 (11_0) |
|---|---|---|
| OpenGL | 3.3 | 4.6 |
| OpenCL | — | 1.1 |
| Vulkan | — | — |
| Shader model | 4.1 | 5.1 |
| CUDA | — | 2.1 |
