GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6790
170%
170%
AMD Radeon HD 6670
59%
59%
AMD Radeon HD 6790 is approximately 111% faster
Technical Specifications
| Specification | AMD Radeon HD 6790 | AMD Radeon HD 6670 |
|---|---|---|
| Graphics ProcessorDifferent | Barts | Turks |
| CoresDifferent | 800 | 480 |
| TMUsDifferent | 40 | 24 |
| ROPsDifferent | 16 | 8 |
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 128 bit |
Graphics Processor
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 6670 |
|---|---|---|
| GPU NameDifferent | Barts | Turks |
| GPU VariantDifferent | Barts LE(215-0798002) | Turks XT(215-0803000) |
| Architecture | TeraScale 2 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process Size | 40 nm | 40 nm |
| TransistorsDifferent | 1,700 million | 716 million |
| DensityDifferent | 6.7M / mm² | 6.1M / mm² |
| Die SizeDifferent | 255 mm² | 118 mm² |
| Chip PackageDifferent | HFCBGA-1737 | FCBGA-962 |
Graphics Card
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 6670 |
|---|---|---|
| Release DateDifferent | Apr 4th, 2011 | Apr 19th, 2011 |
| GenerationDifferent | Northern Islands(HD 6700) | Northern Islands(HD 6600) |
| Predecessor | Evergreen | Evergreen |
| Successor | Southern Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 149 USD | 99 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 37 in our database | 35 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 6670 |
|---|---|---|
| GPU ClockDifferent | 840 MHz | 800 MHz |
| Memory ClockDifferent | 1050 MHz4.2 Gbps effective | 1000 MHz4 Gbps effective |
Memory
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 6670 |
|---|---|---|
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 128 bit |
| BandwidthDifferent | 134.4 GB/s | 64.00 GB/s |
Render Config
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 6670 |
|---|---|---|
| Shading UnitsDifferent | 800 | 480 |
| TMUsDifferent | 40 | 24 |
| ROPsDifferent | 16 | 8 |
| Compute UnitsDifferent | 10 | 6 |
| L1 Cache | 8 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 512 KB | 256 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 6670 |
|---|---|---|
| Pixel RateDifferent | 13.44 GPixel/s | 6.400 GPixel/s |
| Texture RateDifferent | 33.60 GTexel/s | 19.20 GTexel/s |
| FP32 (float)Different | 1,344.0 GFLOPS | 768.0 GFLOPS |
Board Design
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 6670 |
|---|---|---|
| Slot WidthDifferent | Dual-slot | Single-slot |
| LengthDifferent | 198 mm7.8 inches | 168 mm6.6 inches |
| TDPDifferent | 150 W | 66 W |
| Suggested PSUDifferent | 450 W | 250 W |
| OutputsDifferent | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 | 1x DVI1x HDMI 1.3a1x VGA |
| Power ConnectorsDifferent | 2x 6-pin | None |
| Board NumberDifferent | C220, 109-C22237-00 | 109-C33437-00 |
Graphics Features
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 6670 |
|---|---|---|
| DirectX | 11.2 (11_0) | 11.2 (11_0) |
| OpenGL | 4.4 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | N/A | N/A |
| Shader Model | 5.0 | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
44
Detailed Features
More Comparisons with AMD Radeon HD 6790
Compare AMD Radeon HD 6790 with other GPUs of similar performance
AMD Radeon HD 6790 vs GeForce GTX 285
GeForce GTX 285 Performance119%
GeForce GTX 285 is 19% faster than AMD Radeon HD 6790
Compare Detailed Specs
AMD Radeon HD 6790 vs Radeon HD 6850
Radeon HD 6850 Performance116%
Radeon HD 6850 is 16% faster than AMD Radeon HD 6790
Compare Detailed Specs
AMD Radeon HD 6790 vs GeForce GTX 280
GeForce GTX 280 Performance109%
GeForce GTX 280 is 9% faster than AMD Radeon HD 6790
Compare Detailed Specs
AMD Radeon HD 6790 vs Radeon HD 7770 GHz Edition
Radeon HD 7770 GHz Edition Performance109%
Radeon HD 7770 GHz Edition is 9% faster than AMD Radeon HD 6790
Compare Detailed Specs
AMD Radeon HD 6790 vs GeForce GTX 275
GeForce GTX 275 Performance108%
GeForce GTX 275 is 8% faster than AMD Radeon HD 6790
Compare Detailed Specs
AMD Radeon HD 6790 vs GeForce GTX 460
GeForce GTX 460 Performance106%
GeForce GTX 460 is 6% faster than AMD Radeon HD 6790
Compare Detailed Specs
More Comparisons with AMD Radeon HD 6670
Compare AMD Radeon HD 6670 with other GPUs of similar performance
AMD Radeon HD 6670 vs GeForce GTS 250
GeForce GTS 250 Performance119%
GeForce GTS 250 is 19% faster than AMD Radeon HD 6670
Compare Detailed Specs
AMD Radeon HD 6670 vs Radeon HD 4850
Radeon HD 4850 Performance116%
Radeon HD 4850 is 16% faster than AMD Radeon HD 6670
Compare Detailed Specs
AMD Radeon HD 6670 vs Radeon HD 4770
Radeon HD 4770 Performance110%
Radeon HD 4770 is 10% faster than AMD Radeon HD 6670
Compare Detailed Specs
AMD Radeon HD 6670 vs Radeon HD 4830
Radeon HD 4830 Performance103%
Radeon HD 4830 is 3% faster than AMD Radeon HD 6670
Compare Detailed Specs
AMD Radeon HD 6670 vs Radeon HD 6670
Radeon HD 6670 Performance100%
Radeon HD 6670 is 0% slower than AMD Radeon HD 6670
Compare Detailed Specs
AMD Radeon HD 6670 vs GeForce 9800 GT
GeForce 9800 GT Performance96%
GeForce 9800 GT is 4% slower than AMD Radeon HD 6670
Compare Detailed Specs