AMD Radeon HD 7690M vs ATI Radeon HD 4770
Graphics Processor
| GPU model | Thames | RV740 |
|---|---|---|
| GPU variant | Thames XT (216-0833000) | RV740 XT (215-0727019) |
| Architecture | TeraScale 2 | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 40 nm |
| Number of transistors | 716 million | 826 million |
| Die size | 104 mm² | 137 mm² |
Mobile graphics
| Release date | Dec 25th, 2011 | — |
|---|---|---|
| Generation | London (HD 7600M) | — |
| Production | End-of-life | — |
| Interface | MXM-A (3.0) | — |
| Predecessor | Vancouver | — |
| Successor | Solar System | — |
Clocks
| GPU clock | 725 MHz | 750 MHz |
|---|---|---|
| Memory clock | 900 MHz 1800 Mbps effective | 800 MHz 3.2 Gbps effective |
Memory Configuration
| Memory size | 1024 MB | 512 MB |
|---|---|---|
| Memory type | DDR3 | GDDR5 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 28.80 GB/s | 51.20 GB/s |
Render Configuration
| Shading units | 480 | 640 |
|---|---|---|
| TMUs | 24 | 32 |
| ROPs | 16 | 16 |
| Compute units | 6 | 8 |
| Cache L1 | 8 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 256 KB | 128 KB |
Performance
| Pixel rate | 11.60 GPixel/s | 12.00 GPixel/s |
|---|---|---|
| Texture rate | 17.40 GTexel/s | 24.00 GTexel/s |
| FP32 (float) performance | 696.0 GFLOPS | 960.0 GFLOPS |
| FP64 (double) performance | — | 192.0 GFLOPS (1:5) |
Dimensions & Outputs
| Slot width | MXM Module | Dual-slot |
|---|---|---|
| TDP | 20 W | 80 W |
| Outputs | No outputs | 2x DVI1x S-Video |
| Power connectors | None | 1x 6-pin |
| Board number | C017 | B743 |
| Length | — | 203 mm 8 inches |
| Suggested PSU | — | 250 W |
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 |
Other Features
Graphics Card
| Release date | — | Apr 28th, 2009 |
|---|---|---|
| Generation | — | Radeon R700 |
| Production | — | End-of-life |
| Launch price | — | 109 USD |
| Interface | — | PCIe 2.0 x16 |
| Reviews | — | 82 in our database |
| Predecessor | — | Radeon R600 |
| Successor | — | Evergreen |
