AMD Radeon HD 6450 vs ATI Radeon HD 4550
Graphics Processor
| GPU model | Caicos | RV710 |
|---|---|---|
| GPU variant | Caicos PRO | RV710 (215-0725016) |
| Architecture | TeraScale 2 | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 55 nm |
| Number of transistors | 370 million | 242 million |
| Die size | 67 mm² | 73 mm² |
Graphics Card
| Release date | Apr 7th, 2011 | Sep 30th, 2008 |
|---|---|---|
| Generation | Northern Islands | Radeon R700 |
| Production | End-of-life | End-of-life |
| Launch price | 55 USD | 59 USD |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 14 in our database | 18 in our database |
| Predecessor | Evergreen | Radeon R600 |
| Successor | Southern Islands | Evergreen |
Clocks
| GPU clock | 625 MHz | 600 MHz |
|---|---|---|
| Memory clock | 800 MHz 3.2 Gbps effective | 655 MHz 1310 Mbps effective |
Memory Configuration
| Memory size | 512 MB | 256 MB |
|---|---|---|
| Memory type | GDDR5 | DDR2 |
| Memory bus width | 64 bit | 64 bit |
| Bandwidth | 25.60 GB/s | 10.48 GB/s |
Render Configuration
| Shading units | 160 | 80 |
|---|---|---|
| TMUs | 8 | 8 |
| ROPs | 4 | 4 |
| Compute units | 2 | 1 |
| Cache L1 | 8 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 128 KB | 64 KB |
Performance
| Pixel rate | 2.500 GPixel/s | 2.400 GPixel/s |
|---|---|---|
| Texture rate | 5.000 GTexel/s | 4.800 GTexel/s |
| FP32 (float) performance | 200.0 GFLOPS | 96.00 GFLOPS |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| Length | 168 mm 6.6 inches | 168 mm 6.6 inches |
| TDP | 18 W | 25 W |
| Suggested PSU | 200 W | 200 W |
| Outputs | 1x DVI1x HDMI1x VGA | 1x DVI1x HDMI1x DisplayPort |
| Power connectors | None | None |
| Board number | C264 | AB711, B725, B889, B890, B947 |
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 |
