GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon R9 285
91%
91%
AMD Radeon HD 6990
110%
110%
AMD Radeon HD 6990 is approximately 19% faster
Technical Specifications
| Specification | AMD Radeon R9 285 | AMD Radeon HD 6990 |
|---|---|---|
| Graphics ProcessorDifferent | Tonga | Antilles x2 |
| CoresDifferent | 1792 | 1536 x2 |
| TMUsDifferent | 112 | 96 x2 |
| ROPsDifferent | 32 | 32 x2 |
| Memory SizeDifferent | 2 GB | 2 GB x2 |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 256 bit x2 |
Graphics Processor
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6990 |
|---|---|---|
| GPU NameDifferent | Tonga | Antilles |
| GPU VariantDifferent | Tonga PRO(215-0851128) | Antilles XT(215-0807027) |
| ArchitectureDifferent | GCN 3.0 | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 5,000 million | 2,640 million |
| DensityDifferent | 13.7M / mm² | 6.8M / mm² |
| Die SizeDifferent | 366 mm² | 389 mm² |
Graphics Card
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6990 |
|---|---|---|
| Release DateDifferent | Sep 2nd, 2014 | Mar 8th, 2011 |
| GenerationDifferent | Volcanic Islands(R9 200) | Northern Islands(HD 6900) |
| PredecessorDifferent | Sea Islands | Evergreen |
| SuccessorDifferent | Pirate Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 249 USD | 699 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 59 in our database | 47 in our database |
Clock Speeds
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6990 |
|---|---|---|
| GPU ClockDifferent | 918 MHz | 830 MHz |
| Memory ClockDifferent | 1375 MHz5.5 Gbps effective | 1250 MHz5 Gbps effective |
Memory
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6990 |
|---|---|---|
| Memory Size | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 176.0 GB/s | 160.0 GB/s |
Render Config
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6990 |
|---|---|---|
| Shading UnitsDifferent | 1792 | 1536 |
| TMUsDifferent | 112 | 96 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 28 | 24 |
| 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 6990 |
|---|---|---|
| Pixel RateDifferent | 29.38 GPixel/s | 26.56 GPixel/s |
| Texture RateDifferent | 102.8 GTexel/s | 79.68 GTexel/s |
| FP16 (half)Different | 3.290 TFLOPS (1:1) | N/A |
| FP32 (float)Different | 3.290 TFLOPS | 2.550 TFLOPS |
| FP64 (double)Different | 205.6 GFLOPS (1:16) | 637.4 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 221 mm8.7 inches | 310 mm12.2 inches |
| HeightDifferent | 109 mm4.3 inches | 115 mm4.5 inches |
| WidthDifferent | 36 mm1.4 inches | 40 mm1.6 inches |
| TDPDifferent | 190 W | 375 W |
| Suggested PSUDifferent | 450 W | 750 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 6-pin | 2x 8-pin |
| Board NumberDifferent | C766 | 109-C20647-00 |
Graphics Features
| Feature | AMD Radeon R9 285 | AMD Radeon HD 6990 |
|---|---|---|
| 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
47
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 6990
Compare AMD Radeon HD 6990 with other GPUs of similar performance
AMD Radeon HD 6990 vs GeForce GTX 1650
GeForce GTX 1650 Performance119%
GeForce GTX 1650 is 19% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs Radeon RX 6400
Radeon RX 6400 Performance117%
Radeon RX 6400 is 17% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs Arc A380
Arc A380 Performance115%
Arc A380 is 15% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs GeForce GTX 780
GeForce GTX 780 Performance115%
GeForce GTX 780 is 15% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance104%
Radeon HD 7970 GHz Edition is 4% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs GeForce GTX 590
GeForce GTX 590 Performance104%
GeForce GTX 590 is 4% faster than AMD Radeon HD 6990
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