GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon R9 285
234%
234%
AMD Radeon HD 7770 GHz Edition
114%
114%
AMD Radeon R9 285 is approximately 120% faster
Technical Specifications
| Specification | AMD Radeon R9 285 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Graphics ProcessorDifferent | Tonga | Cape Verde |
| CoresDifferent | 1792 | 640 |
| TMUsDifferent | 112 | 40 |
| ROPsDifferent | 32 | 16 |
| Memory SizeDifferent | 2 GB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 128 bit |
Graphics Processor
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| GPU NameDifferent | Tonga | Cape Verde |
| GPU VariantDifferent | Tonga PRO(215-0851128) | Cape Verde XT(215-0825117) |
| ArchitectureDifferent | GCN 3.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 5,000 million | 1,500 million |
| DensityDifferent | 13.7M / mm² | 12.2M / mm² |
| Die SizeDifferent | 366 mm² | 123 mm² |
| Chip PackageDifferent | N/A | FCBGA-962 |
Graphics Card
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Release DateDifferent | Sep 2nd, 2014 | Feb 15th, 2012 |
| GenerationDifferent | Volcanic Islands(R9 200) | Southern Islands(HD 7700) |
| PredecessorDifferent | Sea Islands | Northern Islands |
| SuccessorDifferent | Pirate Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 249 USD | 159 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 59 in our database | 97 in our database |
Clock Speeds
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| GPU ClockDifferent | 918 MHz | 1000 MHz |
| Memory ClockDifferent | 1375 MHz5.5 Gbps effective | 1125 MHz4.5 Gbps effective |
Memory
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Memory SizeDifferent | 2 GB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 128 bit |
| BandwidthDifferent | 176.0 GB/s | 72.00 GB/s |
Render Config
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Shading UnitsDifferent | 1792 | 640 |
| TMUsDifferent | 112 | 40 |
| ROPsDifferent | 32 | 16 |
| Compute UnitsDifferent | 28 | 10 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 512 KB | 256 KB |
Theoretical Performance
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Pixel RateDifferent | 29.38 GPixel/s | 16.00 GPixel/s |
| Texture RateDifferent | 102.8 GTexel/s | 40.00 GTexel/s |
| FP16 (half)Different | 3.290 TFLOPS (1:1) | N/A |
| FP32 (float)Different | 3.290 TFLOPS | 1,280.0 GFLOPS |
| FP64 (double)Different | 205.6 GFLOPS (1:16) | 80.00 GFLOPS (1:16) |
Board Design
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 221 mm8.7 inches | 210 mm8.3 inches |
| HeightDifferent | 109 mm4.3 inches | N/A |
| WidthDifferent | 36 mm1.4 inches | N/A |
| TDPDifferent | 190 W | 80 W |
| Suggested PSUDifferent | 450 W | 250 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 6-pin | 1x 6-pin |
| Board NumberDifferent | C766 | 109-C44157-00C, C468 |
Graphics Features
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| DirectXDifferent | 12 (12_0) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.1 | 2.1 (1.2) |
| Vulkan | 1.2.170 | 1.2.170 |
| Shader ModelDifferent | 6.5 | 6.5 (5.1) |
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 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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