GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7770 GHz Edition
290%
290%
AMD Radeon HD 6790
92%
92%
AMD Radeon HD 7770 GHz Edition is approximately 198% faster
Technical Specifications
| Specification | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6790 |
|---|---|---|
| Graphics ProcessorDifferent | Cape Verde | Barts |
| CoresDifferent | 640 | 800 |
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 128 bit | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6790 |
|---|---|---|
| GPU NameDifferent | Cape Verde | Barts |
| GPU VariantDifferent | Cape Verde XT(215-0825117) | Barts LE(215-0798002) |
| ArchitectureDifferent | GCN 1.0 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 1,500 million | 1,700 million |
| DensityDifferent | 12.2M / mm² | 6.7M / mm² |
| Die SizeDifferent | 123 mm² | 255 mm² |
| Chip PackageDifferent | FCBGA-962 | HFCBGA-1737 |
Graphics Card
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6790 |
|---|---|---|
| Release DateDifferent | Feb 15th, 2012 | Apr 4th, 2011 |
| GenerationDifferent | Southern Islands(HD 7700) | Northern Islands(HD 6700) |
| PredecessorDifferent | Northern Islands | Evergreen |
| SuccessorDifferent | Sea Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 159 USD | 149 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 97 in our database | 37 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6790 |
|---|---|---|
| GPU ClockDifferent | 1000 MHz | 840 MHz |
| Memory ClockDifferent | 1125 MHz4.5 Gbps effective | 1050 MHz4.2 Gbps effective |
Memory
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6790 |
|---|---|---|
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 72.00 GB/s | 134.4 GB/s |
Render Config
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6790 |
|---|---|---|
| Shading UnitsDifferent | 640 | 800 |
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Compute Units | 10 | 10 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 256 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6790 |
|---|---|---|
| Pixel RateDifferent | 16.00 GPixel/s | 13.44 GPixel/s |
| Texture RateDifferent | 40.00 GTexel/s | 33.60 GTexel/s |
| FP32 (float)Different | 1,280.0 GFLOPS | 1,344.0 GFLOPS |
| FP64 (double)Different | 80.00 GFLOPS (1:16) | N/A |
Board Design
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6790 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 210 mm8.3 inches | 198 mm7.8 inches |
| TDPDifferent | 80 W | 150 W |
| Suggested PSUDifferent | 250 W | 450 W |
| OutputsDifferent | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 |
| Power ConnectorsDifferent | 1x 6-pin | 2x 6-pin |
| Board NumberDifferent | 109-C44157-00C, C468 | C220, 109-C22237-00 |
Graphics Features
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6790 |
|---|---|---|
| DirectXDifferent | 12 (11_1) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 2.1 (1.2) | 1.2 |
| VulkanDifferent | 1.2.170 | N/A |
| Shader ModelDifferent | 6.5 (5.1) | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
45
Detailed Features
More Comparisons with AMD Radeon HD 7770 GHz Edition
Compare AMD Radeon HD 7770 GHz Edition with other GPUs of similar performance
AMD Radeon HD 7770 GHz Edition vs GeForce GTX 650 Ti
GeForce GTX 650 Ti Performance119%
GeForce GTX 650 Ti is 19% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 5850
Radeon HD 5850 Performance117%
Radeon HD 5850 is 17% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 285
GeForce GTX 285 Performance109%
GeForce GTX 285 is 9% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 6850
Radeon HD 6850 Performance107%
Radeon HD 6850 is 7% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 280
GeForce GTX 280 Performance100%
GeForce GTX 280 is 0% slower than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 7770 GHz Edition
Radeon HD 7770 GHz Edition Performance100%
Radeon HD 7770 GHz Edition is 0% slower than AMD Radeon HD 7770 GHz Edition
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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
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AMD Radeon HD 6790 vs GeForce GTX 280
GeForce GTX 280 Performance109%
GeForce GTX 280 is 9% faster than AMD Radeon HD 6790
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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
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AMD Radeon HD 6790 vs GeForce GTX 275
GeForce GTX 275 Performance108%
GeForce GTX 275 is 8% faster than AMD Radeon HD 6790
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AMD Radeon HD 6790 vs GeForce GTX 460
GeForce GTX 460 Performance106%
GeForce GTX 460 is 6% faster than AMD Radeon HD 6790
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