ATI Mobility Radeon HD 3670 vs ATI Radeon HD 4650
Graphics Processor
| GPU model | M86 | RV730 |
|---|---|---|
| Architecture | TeraScale | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 55 nm | 55 nm |
| Number of transistors | 378 million | 514 million |
| Die size | 135 mm² | 146 mm² |
| GPU variant | — | RV730 PRO (215-0719056) |
Mobile graphics
| Release date | Jan 7th, 2008 | — |
|---|---|---|
| Generation | M8x (Mobility HD 3600) | — |
| Production | End-of-life | — |
| Interface | PCIe 2.0 x16 | — |
| Reviews | 2 in our database | — |
| Predecessor | M7x | — |
| Successor | M9x | — |
Clocks
| GPU clock | 680 MHz | 600 MHz |
|---|---|---|
| Memory clock | 800 MHz 1600 Mbps effective | 700 MHz 1400 Mbps effective |
Memory Configuration
| Memory size | 256 MB | 256 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 25.60 GB/s | 22.40 GB/s |
Render Configuration
| Shading units | 120 | 320 |
|---|---|---|
| TMUs | 8 | 32 |
| ROPs | 4 | 8 |
| Compute units | 3 | 4 |
| Cache L2 | 128 KB | 128 KB |
| Cache L1 | — | 16 KB (per CU) |
Performance
| Pixel rate | 2.720 GPixel/s | 4.800 GPixel/s |
|---|---|---|
| Texture rate | 5.440 GTexel/s | 19.20 GTexel/s |
| FP32 (float) performance | 163.2 GFLOPS | 384.0 GFLOPS |
Dimensions & Outputs
| TDP | 30 W | 48 W |
|---|---|---|
| Outputs | No outputs | 2x DVI1x S-Video |
| Slot width | — | Single-slot |
| Length | — | 193 mm 7.6 inches |
| Suggested PSU | — | 200 W |
API Support & Features
| DirectX | 10.1 (10_1) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | — | 1.1 |
| Vulkan | — | — |
| Shader model | 4.1 | 4.1 |
Other Features
Graphics Card
| Release date | — | Sep 10th, 2008 |
|---|---|---|
| Generation | — | Radeon R700 |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Reviews | — | 20 in our database |
| Predecessor | — | Radeon R600 |
| Successor | — | Evergreen |
