AMD Radeon HD 6790 vs NVIDIA GeForce GT 220
Graphics Processor
| GPU model | Barts | G94 |
|---|---|---|
| GPU variant | Barts LE (215-0798002) | — |
| Architecture | TeraScale 2 | Tesla |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 65 nm |
| Number of transistors | 1,700 million | 505 million |
| Die size | 255 mm² | 240 mm² |
Graphics Card
| Release date | Apr 4th, 2011 | Jan 26th, 2010 |
|---|---|---|
| Generation | Northern Islands | GeForce 200 |
| Production | End-of-life | End-of-life |
| Launch price | 149 USD | — |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 37 in our database | 27 in our database |
| Predecessor | Evergreen | GeForce 9 |
| Successor | Southern Islands | GeForce 400 |
Clocks
| GPU clock | 840 MHz | 600 MHz |
|---|---|---|
| Memory clock | 1050 MHz 4.2 Gbps effective | 700 MHz 1400 Mbps effective |
| Shader clock | — | 1500 MHz |
Memory Configuration
| Memory size | 1024 MB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR3 |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 134.4 GB/s | 22.40 GB/s |
Render Configuration
| Shading units | 800 | 48 |
|---|---|---|
| TMUs | 40 | 24 |
| ROPs | 16 | 8 |
| Compute units | 10 | — |
| Cache L1 | 8 KB (per CU) | — |
| Cache L2 | 512 KB | 64 KB |
| SM count | — | 6 |
Performance
| Pixel rate | 13.44 GPixel/s | 4.800 GPixel/s |
|---|---|---|
| Texture rate | 33.60 GTexel/s | 14.40 GTexel/s |
| FP32 (float) performance | 1,344 GFLOPS | 144.0 GFLOPS |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| Length | 198 mm 7.8 inches | 168 mm 6.6 inches |
| TDP | 150 W | 58 W |
| Suggested PSU | 450 W | 250 W |
| Outputs | 2x DVI1x HDMI1x DisplayPort | 1x DVI1x HDMI1x VGA |
| Power connectors | 2x 6-pin | — |
| Board number | C220, C222 | — |
API Support & Features
| DirectX | 11.2 (11_0) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.4 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | — | — |
| Shader model | 5.0 | 4.0 |
| CUDA | — | 1.1 |
