AMD Radeon HD 6650M vs ATI Radeon HD 4810
Graphics Processor
| GPU model | Whistler | RV770 |
|---|---|---|
| GPU variant | Whistler LE | RV770 CE (215-0669093) |
| Architecture | TeraScale 2 | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 55 nm |
| Number of transistors | 716 million | 956 million |
| Die size | 104 mm² | 256 mm² |
Mobile graphics
| Release date | Jan 4th, 2011 | — |
|---|---|---|
| Generation | Vancouver (HD 6600M) | — |
| Production | End-of-life | — |
| Interface | PCIe 2.0 x16 | — |
| Predecessor | Manhattan | — |
| Successor | London | — |
Clocks
| GPU clock | 600 MHz | 625 MHz |
|---|---|---|
| Memory clock | 800 MHz 1600 Mbps effective | 900 MHz 3.6 Gbps effective |
Memory Configuration
| Memory size | 1024 MB | 512 MB |
|---|---|---|
| Memory type | DDR3 | GDDR5 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 25.60 GB/s | 57.60 GB/s |
Render Configuration
| Shading units | 480 | 640 |
|---|---|---|
| TMUs | 24 | 32 |
| ROPs | 8 | 8 |
| Compute units | 6 | 8 |
| Cache L1 | 8 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 256 KB | 128 KB |
Performance
| Pixel rate | 4.800 GPixel/s | 5.000 GPixel/s |
|---|---|---|
| Texture rate | 14.40 GTexel/s | 20.00 GTexel/s |
| FP32 (float) performance | 576.0 GFLOPS | 800.0 GFLOPS |
| FP64 (double) performance | — | 160.0 GFLOPS (1:5) |
Dimensions & Outputs
| TDP | unknown | 95 W |
|---|---|---|
| Outputs | No outputs | 2x DVI1x S-Video |
| Slot width | — | Single-slot |
| Length | — | 246 mm 9.7 inches |
| Suggested PSU | — | 250 W |
| Power connectors | — | 1x 6-pin |
| Board number | — | B507 |
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 |
Other Features
Graphics Card
| Release date | — | May 28th, 2009 |
|---|---|---|
| Generation | — | Radeon R700 |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Predecessor | — | Radeon R600 |
| Successor | — | Evergreen |
