AMD Radeon HD 7470M vs ATI Radeon E4690 MXM
Graphics Processor
| GPU model | Seymour | RV730 |
|---|---|---|
| GPU variant | Seymour XT (216-0810084) | RV730 XT E4690 (215-0729055) |
| Architecture | TeraScale 2 | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 55 nm |
| Number of transistors | 370 million | 514 million |
| Die size | 67 mm² | 146 mm² |
Mobile graphics
| Release date | Jan 7th, 2012 | Jun 1st, 2009 |
|---|---|---|
| Generation | London (HD 7400M) | Embedded (4000) |
| Production | End-of-life | End-of-life |
| Interface | PCIe 2.0 x16 | MXM-A (3.0) |
| Predecessor | Vancouver | — |
| Successor | Solar System | — |
Clocks
| Base clock | 750 MHz | — |
|---|---|---|
| Boost clock | 800 MHz | — |
| Memory clock | 900 MHz 1800 Mbps effective | 700 MHz 1400 Mbps effective |
| GPU clock | — | 600 MHz |
Memory Configuration
| Memory size | 1024 MB | 512 MB |
|---|---|---|
| Memory type | DDR3 | GDDR3 |
| Memory bus width | 64 bit | 128 bit |
| Bandwidth | 14.40 GB/s | 22.40 GB/s |
Render Configuration
| Shading units | 160 | 320 |
|---|---|---|
| TMUs | 8 | 32 |
| ROPs | 4 | 8 |
| Compute units | 2 | 4 |
| Cache L1 | 8 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 128 KB | 128 KB |
Performance
| Pixel rate | 3.200 GPixel/s | 4.800 GPixel/s |
|---|---|---|
| Texture rate | 6.400 GTexel/s | 19.20 GTexel/s |
| FP32 (float) performance | 256.0 GFLOPS | 384.0 GFLOPS |
Dimensions & Outputs
| TDP | 25 W | 30 W |
|---|---|---|
| Outputs | No outputs | No outputs |
| Slot width | — | MXM Module |
API Support & Features
| DirectX | 11.2 (11_0) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 4.4 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | — | — |
| Shader model | 5.0 | 4.1 |
