GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6790
48%
48%
AMD Radeon R9 270X
207%
207%
AMD Radeon R9 270X is approximately 159% faster
Technical Specifications
| Specification | AMD Radeon HD 6790 | AMD Radeon R9 270X |
|---|---|---|
| Graphics ProcessorDifferent | Barts | Curacao |
| CoresDifferent | 800 | 1280 |
| TMUsDifferent | 40 | 80 |
| ROPsDifferent | 16 | 32 |
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 256 bit | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 6790 | AMD Radeon R9 270X |
|---|---|---|
| GPU NameDifferent | Barts | Curacao |
| GPU VariantDifferent | Barts LE(215-0798002) | Curacao XT(215-0848004) |
| ArchitectureDifferent | TeraScale 2 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 28 nm |
| TransistorsDifferent | 1,700 million | 2,800 million |
| DensityDifferent | 6.7M / mm² | 13.2M / mm² |
| Die SizeDifferent | 255 mm² | 212 mm² |
| Chip PackageDifferent | HFCBGA-1737 | FCBGA-1737 |
Graphics Card
| Feature | AMD Radeon HD 6790 | AMD Radeon R9 270X |
|---|---|---|
| Release DateDifferent | Apr 4th, 2011 | Oct 8th, 2013 |
| GenerationDifferent | Northern Islands(HD 6700) | Volcanic Islands(R9 200) |
| PredecessorDifferent | Evergreen | Sea Islands |
| SuccessorDifferent | Southern Islands | Pirate Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 149 USD | 199 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 37 in our database | 90 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6790 | AMD Radeon R9 270X |
|---|---|---|
| GPU ClockDifferent | 840 MHz | N/A |
| Memory ClockDifferent | 1050 MHz4.2 Gbps effective | 1400 MHz5.6 Gbps effective |
| Base ClockDifferent | N/A | 1000 MHz |
| Boost ClockDifferent | N/A | 1050 MHz |
Memory
| Feature | AMD Radeon HD 6790 | AMD Radeon R9 270X |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 134.4 GB/s | 179.2 GB/s |
Render Config
| Feature | AMD Radeon HD 6790 | AMD Radeon R9 270X |
|---|---|---|
| Shading UnitsDifferent | 800 | 1280 |
| TMUsDifferent | 40 | 80 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 10 | 20 |
| L1 CacheDifferent | 8 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6790 | AMD Radeon R9 270X |
|---|---|---|
| Pixel RateDifferent | 13.44 GPixel/s | 33.60 GPixel/s |
| Texture RateDifferent | 33.60 GTexel/s | 84.00 GTexel/s |
| FP32 (float)Different | 1,344.0 GFLOPS | 2.688 TFLOPS |
| FP64 (double)Different | N/A | 168.0 GFLOPS (1:16) |
Board Design
| Feature | AMD Radeon HD 6790 | AMD Radeon R9 270X |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 198 mm7.8 inches | 241 mm9.5 inches |
| TDPDifferent | 150 W | 180 W |
| Suggested PSU | 450 W | 450 W |
| OutputsDifferent | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 2x 6-pin | 2x 6-pin |
| Board NumberDifferent | C220, 109-C22237-00 | C631, 109-C63257-00A_02, 109-C63257-12_02 |
| HeightDifferent | N/A | 109 mm4.3 inches |
| WidthDifferent | N/A | 36 mm1.4 inches |
Graphics Features
| Feature | AMD Radeon HD 6790 | AMD Radeon R9 270X |
|---|---|---|
| DirectXDifferent | 11.2 (11_0) | 12 (11_1) |
| OpenGLDifferent | 4.4 | 4.6 |
| OpenCLDifferent | 1.2 | 2.1 (1.2) |
| VulkanDifferent | N/A | 1.2.170 |
| Shader ModelDifferent | 5.0 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
49
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
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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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More Comparisons with AMD Radeon R9 270X
Compare AMD Radeon R9 270X with other GPUs of similar performance
AMD Radeon R9 270X vs GeForce GTX 960
GeForce GTX 960 Performance119%
GeForce GTX 960 is 19% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 670
GeForce GTX 670 Performance116%
GeForce GTX 670 is 16% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs Radeon HD 5970
Radeon HD 5970 Performance105%
Radeon HD 5970 is 5% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 1630
GeForce GTX 1630 Performance105%
GeForce GTX 1630 is 5% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 1050
GeForce GTX 1050 Performance103%
GeForce GTX 1050 is 3% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 760
GeForce GTX 760 Performance102%
GeForce GTX 760 is 2% faster than AMD Radeon R9 270X
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