AMD Radeon HD 6450A vs AMD Radeon HD 8490 OEM
Graphics Processor
| GPU model | Caicos | Caicos |
|---|---|---|
| Architecture | TeraScale 2 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 40 nm |
| Number of transistors | 370 million | 370 million |
| Die size | 67 mm² | 67 mm² |
| GPU variant | — | Caicos XTX |
Mobile graphics
| Release date | Apr 7th, 2011 | — |
|---|---|---|
| Generation | All-In-One (HD 6000) | — |
| Production | End-of-life | — |
| Interface | MXM-A (3.0) | — |
Clocks
| GPU clock | 625 MHz | 875 MHz |
|---|---|---|
| Memory clock | 533 MHz 1066 Mbps effective | 900 MHz 1800 Mbps effective |
Memory Configuration
| Memory size | 512 MB | 1024 MB |
|---|---|---|
| Memory type | DDR3 | DDR3 |
| Memory bus width | 64 bit | 64 bit |
| Bandwidth | 8.528 GB/s | 14.40 GB/s |
Render Configuration
| Shading units | 160 | 160 |
|---|---|---|
| TMUs | 8 | 8 |
| ROPs | 4 | 4 |
| Compute units | 2 | 2 |
| Cache L1 | 8 KB (per CU) | 8 KB (per CU) |
| Cache L2 | 128 KB | 128 KB |
Performance
| Pixel rate | 2.500 GPixel/s | 3.500 GPixel/s |
|---|---|---|
| Texture rate | 5.000 GTexel/s | 7.000 GTexel/s |
| FP32 (float) performance | 200.0 GFLOPS | 280.0 GFLOPS |
Dimensions & Outputs
| Slot width | MXM Module | Single-slot |
|---|---|---|
| TDP | 25 W | 35 W |
| Outputs | No outputs | 1x DVI1x DisplayPort |
| Length | — | 168 mm 6.6 inches |
| Suggested PSU | — | 200 W |
| Power connectors | — | None |
| Board number | — | C369, C553 |
API Support & Features
| DirectX | 11.2 (11_0) | 11.2 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | — | — |
| Shader model | 5.0 | 5.0 |
Other Features
Graphics Card
| Release date | — | Jul 23rd, 2013 |
|---|---|---|
| Generation | — | Sea Islands |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Predecessor | — | Southern Islands |
| Successor | — | Volcanic Islands |
