AMD Radeon HD 6790 vs NVIDIA GeForce GTX 480M
Graphics Processor
| GPU model | Barts | GF100 |
|---|---|---|
| GPU variant | Barts LE (215-0798002) | N11E-GTX-A3 |
| Architecture | TeraScale 2 | Fermi |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 40 nm |
| Number of transistors | 1,700 million | 3,100 million |
| Die size | 255 mm² | 529 mm² |
Graphics Card
| Release date | Apr 4th, 2011 | — |
|---|---|---|
| Generation | Northern Islands | — |
| Production | End-of-life | — |
| Launch price | 149 USD | — |
| Interface | PCIe 2.0 x16 | — |
| Reviews | 37 in our database | — |
| Predecessor | Evergreen | — |
| Successor | Southern Islands | — |
Clocks
| GPU clock | 840 MHz | 425 MHz |
|---|---|---|
| Memory clock | 1050 MHz 4.2 Gbps effective | 600 MHz 2.4 Gbps effective |
| Shader clock | — | 850 MHz |
Memory Configuration
| Memory size | 1024 MB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 134.4 GB/s | 76.80 GB/s |
Render Configuration
| Shading units | 800 | 352 |
|---|---|---|
| TMUs | 40 | 44 |
| ROPs | 16 | 32 |
| Compute units | 10 | — |
| Cache L1 | 8 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 512 KB | 512 KB |
| SM count | — | 11 |
Performance
| Pixel rate | 13.44 GPixel/s | 9.350 GPixel/s |
|---|---|---|
| Texture rate | 33.60 GTexel/s | 18.70 GTexel/s |
| FP32 (float) performance | 1,344 GFLOPS | 598.4 GFLOPS |
| FP64 (double) performance | — | 74.80 GFLOPS (1:8) |
Dimensions & Outputs
| Slot width | Dual-slot | MXM Module |
|---|---|---|
| Length | 198 mm 7.8 inches | — |
| TDP | 150 W | 100 W |
| Suggested PSU | 450 W | — |
| Outputs | 2x DVI1x HDMI1x DisplayPort | No outputs |
| Power connectors | 2x 6-pin | None |
| Board number | C220, C222 | P1028 |
API Support & Features
| DirectX | 11.2 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | — | — |
| Shader model | 5.0 | 5.1 |
| CUDA | — | 2.0 |
Other Features
Mobile graphics
| Release date | — | May 25th, 2010 |
|---|---|---|
| Generation | — | GeForce 400M |
| Production | — | End-of-life |
| Interface | — | MXM-B (3.0) |
| Reviews | — | 3 in our database |
| Predecessor | — | GeForce 300M |
| Successor | — | GeForce 500M |
