ATI Mobility Radeon HD 4270 IGP vs ATI Radeon HD 3450 PCI
Graphics Processor
| GPU model | RS880 | RV620 |
|---|---|---|
| GPU variant | RS880M | RV620 LE |
| Architecture | TeraScale | TeraScale |
| Manufacturing process | 55 nm | 55 nm |
| Number of transistors | 181 million | 181 million |
| Die size | 67 mm² | 67 mm² |
| Foundry | — | TSMC |
Integrated Graphics
| Release date | May 1st, 2010 | — |
|---|---|---|
| Generation | Radeon IGP (Mobility HD 4000) | — |
| Production | End-of-life | — |
| Interface | PCIe 1.0 x16 | — |
| Successor | Palm | — |
Clocks
| GPU clock | 590 MHz | 600 MHz |
|---|---|---|
| Memory clock | System Shared | 400 MHz 800 Mbps effective |
Memory Configuration
| Memory size | System Shared | 512 MB |
|---|---|---|
| Memory type | System Shared | DDR2 |
| Memory bus width | System Shared | 64 bit |
| Bandwidth | System Dependent | 6.400 GB/s |
Render Configuration
| Shading units | 40 | 40 |
|---|---|---|
| TMUs | 4 | 4 |
| ROPs | 4 | 4 |
| Compute units | 2 | 2 |
| Cache L2 | — | 64 KB |
Performance
| Pixel rate | 2.360 GPixel/s | 2.400 GPixel/s |
|---|---|---|
| Texture rate | 2.360 GTexel/s | 2.400 GTexel/s |
| FP32 (float) performance | 47.20 GFLOPS | 48.00 GFLOPS |
Dimensions & Outputs
| Slot width | IGP | Single-slot |
|---|---|---|
| TDP | unknown | 25 W |
| Outputs | No outputs | 1x DVI1x S-Video |
| Power connectors | None | None |
| Suggested PSU | — | 200 W |
API Support & Features
| DirectX | 10.1 (10_1) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | 1.0 | — |
| Vulkan | — | — |
| Shader model | 4.1 | 4.1 |
Other Features
Graphics Card
| Release date | — | Jan 23rd, 2008 |
|---|---|---|
| Generation | — | Radeon R600 |
| Production | — | End-of-life |
| Interface | — | PCI |
| Reviews | — | 7 in our database |
| Predecessor | — | Radeon R500 PCIe |
| Successor | — | Radeon R700 |
