AMD Radeon HD 7450A vs ATI Radeon HD 2900 GT
Graphics Processor
| GPU model | Caicos | R600 |
|---|---|---|
| Architecture | TeraScale 2 | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 80 nm |
| Number of transistors | 370 million | 720 million |
| Die size | 67 mm² | 420 mm² |
| GPU variant | — | R600 GT (215RGFDKA13FG) |
Mobile graphics
| Release date | Jan 5th, 2012 | — |
|---|---|---|
| Generation | All-In-One (HD 7000) | — |
| Production | End-of-life | — |
| Interface | MXM-A (3.0) | — |
Clocks
| GPU clock | 625 MHz | 601 MHz |
|---|---|---|
| Memory clock | 800 MHz 1600 Mbps effective | 800 MHz 1600 Mbps effective |
Memory Configuration
| Memory size | 512 MB | 256 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 64 bit | 256 bit |
| Bandwidth | 12.80 GB/s | 51.20 GB/s |
Render Configuration
| Shading units | 160 | 240 |
|---|---|---|
| TMUs | 8 | 12 |
| ROPs | 4 | 12 |
| Compute units | 2 | 3 |
| Cache L1 | 8 KB (per CU) | — |
| Cache L2 | 128 KB | 128 KB |
Performance
| Pixel rate | 2.500 GPixel/s | 7.212 GPixel/s |
|---|---|---|
| Texture rate | 5.000 GTexel/s | 7.212 GTexel/s |
| FP32 (float) performance | 200.0 GFLOPS | 288.5 GFLOPS |
Dimensions & Outputs
| Slot width | MXM Module | Dual-slot |
|---|---|---|
| TDP | 25 W | 150 W |
| Outputs | No outputs | 2x DVI1x S-Video |
| Suggested PSU | — | 450 W |
| Power connectors | — | 1x 8-pin |
| Board number | — | B002 |
API Support & Features
| DirectX | 11.2 (11_0) | 10.0 (10_0) |
|---|---|---|
| OpenGL | 4.4 | 3.3 (full) 4.0 (partial) |
| OpenCL | 1.2 | — |
| Vulkan | — | — |
| Shader model | 5.0 | 4.0 |
Other Features
Graphics Card
| Release date | — | Nov 6th, 2007 |
|---|---|---|
| Generation | — | Radeon R600 |
| Production | — | End-of-life |
| Interface | — | PCIe 1.0 x16 |
| Reviews | — | 63 in our database |
| Predecessor | — | Radeon R500 PCIe |
| Successor | — | Radeon R700 |
