GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon R9 285
254%
254%
AMD Radeon HD 6790
39%
39%
AMD Radeon R9 285 is approximately 215% faster
Technical Specifications
| Specification | AMD Radeon R9 285 | AMD Radeon HD 6790 |
|---|---|---|
| Graphics ProcessorDifferent | Tonga | Barts |
| CoresDifferent | 1792 | 800 |
| TMUsDifferent | 112 | 40 |
| ROPsDifferent | 32 | 16 |
| Memory SizeDifferent | 2 GB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 256 bit | 256 bit |
Graphics Processor
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6790 |
|---|---|---|
| GPU NameDifferent | Tonga | Barts |
| GPU VariantDifferent | Tonga PRO(215-0851128) | Barts LE(215-0798002) |
| ArchitectureDifferent | GCN 3.0 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 5,000 million | 1,700 million |
| DensityDifferent | 13.7M / mm² | 6.7M / mm² |
| Die SizeDifferent | 366 mm² | 255 mm² |
| Chip PackageDifferent | N/A | HFCBGA-1737 |
Graphics Card
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6790 |
|---|---|---|
| Release DateDifferent | Sep 2nd, 2014 | Apr 4th, 2011 |
| GenerationDifferent | Volcanic Islands(R9 200) | Northern Islands(HD 6700) |
| PredecessorDifferent | Sea Islands | Evergreen |
| SuccessorDifferent | Pirate Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 249 USD | 149 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 59 in our database | 37 in our database |
Clock Speeds
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6790 |
|---|---|---|
| GPU ClockDifferent | 918 MHz | 840 MHz |
| Memory ClockDifferent | 1375 MHz5.5 Gbps effective | 1050 MHz4.2 Gbps effective |
Memory
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6790 |
|---|---|---|
| Memory SizeDifferent | 2 GB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 176.0 GB/s | 134.4 GB/s |
Render Config
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6790 |
|---|---|---|
| Shading UnitsDifferent | 1792 | 800 |
| TMUsDifferent | 112 | 40 |
| ROPsDifferent | 32 | 16 |
| Compute UnitsDifferent | 28 | 10 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6790 |
|---|---|---|
| Pixel RateDifferent | 29.38 GPixel/s | 13.44 GPixel/s |
| Texture RateDifferent | 102.8 GTexel/s | 33.60 GTexel/s |
| FP16 (half)Different | 3.290 TFLOPS (1:1) | N/A |
| FP32 (float)Different | 3.290 TFLOPS | 1,344.0 GFLOPS |
| FP64 (double)Different | 205.6 GFLOPS (1:16) | N/A |
Board Design
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6790 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 221 mm8.7 inches | 198 mm7.8 inches |
| HeightDifferent | 109 mm4.3 inches | N/A |
| WidthDifferent | 36 mm1.4 inches | N/A |
| TDPDifferent | 190 W | 150 W |
| Suggested PSU | 450 W | 450 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 |
| Power Connectors | 2x 6-pin | 2x 6-pin |
| Board NumberDifferent | C766 | C220, 109-C22237-00 |
Graphics Features
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6790 |
|---|---|---|
| DirectXDifferent | 12 (12_0) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 2.1 | 1.2 |
| VulkanDifferent | 1.2.170 | N/A |
| Shader ModelDifferent | 6.5 | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
48
Detailed Features
More Comparisons with AMD Radeon R9 285
Compare AMD Radeon R9 285 with other GPUs of similar performance
AMD Radeon R9 285 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance114%
Radeon HD 7970 GHz Edition is 14% faster than AMD Radeon R9 285
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AMD Radeon R9 285 vs GeForce GTX 590
GeForce GTX 590 Performance114%
GeForce GTX 590 is 14% faster than AMD Radeon R9 285
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AMD Radeon R9 285 vs Radeon R9 280X
Radeon R9 280X Performance112%
Radeon R9 280X is 12% faster than AMD Radeon R9 285
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AMD Radeon R9 285 vs Radeon HD 6990
Radeon HD 6990 Performance110%
Radeon HD 6990 is 10% faster than AMD Radeon R9 285
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AMD Radeon R9 285 vs GeForce GTX 1050 Ti
GeForce GTX 1050 Ti Performance104%
GeForce GTX 1050 Ti is 4% faster than AMD Radeon R9 285
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AMD Radeon R9 285 vs GeForce GTX 680
GeForce GTX 680 Performance102%
GeForce GTX 680 is 2% faster than AMD Radeon R9 285
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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
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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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