GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon R9 285
62%
62%
AMD Radeon HD 7990
160%
160%
AMD Radeon HD 7990 is approximately 98% faster
Technical Specifications
| Specification | AMD Radeon R9 285 | AMD Radeon HD 7990 |
|---|---|---|
| Graphics ProcessorDifferent | Tonga | Malta x2 |
| CoresDifferent | 1792 | 2048 x2 |
| TMUsDifferent | 112 | 128 x2 |
| ROPsDifferent | 32 | 32 x2 |
| Memory SizeDifferent | 2 GB | 3 GB x2 |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 384 bit x2 |
Graphics Processor
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7990 |
|---|---|---|
| GPU NameDifferent | Tonga | Malta |
| GPU VariantDifferent | Tonga PRO(215-0851128) | Malta XT(215-0849026) |
| ArchitectureDifferent | GCN 3.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 5,000 million | 4,313 million |
| DensityDifferent | 13.7M / mm² | 11.8M / mm² |
| Die SizeDifferent | 366 mm² | 365 mm² |
Graphics Card
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7990 |
|---|---|---|
| Release DateDifferent | Sep 2nd, 2014 | Apr 24th, 2013 |
| GenerationDifferent | Volcanic Islands(R9 200) | Southern Islands(HD 7900) |
| PredecessorDifferent | Sea Islands | Northern Islands |
| SuccessorDifferent | Pirate Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 249 USD | 999 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 59 in our database | 37 in our database |
Clock Speeds
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7990 |
|---|---|---|
| GPU ClockDifferent | 918 MHz | N/A |
| Memory ClockDifferent | 1375 MHz5.5 Gbps effective | 1500 MHz6 Gbps effective |
| Base ClockDifferent | N/A | 950 MHz |
| Boost ClockDifferent | N/A | 1000 MHz |
Memory
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7990 |
|---|---|---|
| Memory SizeDifferent | 2 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 384 bit |
| BandwidthDifferent | 176.0 GB/s | 288.0 GB/s |
Render Config
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7990 |
|---|---|---|
| Shading UnitsDifferent | 1792 | 2048 |
| TMUsDifferent | 112 | 128 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 28 | 32 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 512 KB | 768 KB |
Theoretical Performance
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7990 |
|---|---|---|
| Pixel RateDifferent | 29.38 GPixel/s | 32.00 GPixel/s |
| Texture RateDifferent | 102.8 GTexel/s | 128.0 GTexel/s |
| FP16 (half)Different | 3.290 TFLOPS (1:1) | N/A |
| FP32 (float)Different | 3.290 TFLOPS | 4.096 TFLOPS |
| FP64 (double)Different | 205.6 GFLOPS (1:16) | 1,024.0 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 221 mm8.7 inches | 304 mm12 inches |
| HeightDifferent | 109 mm4.3 inches | 106 mm4.2 inches |
| WidthDifferent | 36 mm1.4 inches | 38 mm1.5 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-C47637-00A_02 |
Graphics Features
| Feature | AMD Radeon R9 285 | AMD Radeon HD 7990 |
|---|---|---|
| DirectXDifferent | 12 (12_0) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.1 | 2.1 (1.2) |
| VulkanDifferent | 1.2.170 | 1.2.175 |
| Shader ModelDifferent | 6.5 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
49
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 7990
Compare AMD Radeon HD 7990 with other GPUs of similar performance
AMD Radeon HD 7990 vs Radeon RX 590
Radeon RX 590 Performance115%
Radeon RX 590 is 15% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon R9 FURY
Radeon R9 FURY Performance112%
Radeon R9 FURY is 12% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs GeForce GTX 980
GeForce GTX 980 Performance111%
GeForce GTX 980 is 11% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs GeForce GTX 1650 SUPER
GeForce GTX 1650 SUPER Performance110%
GeForce GTX 1650 SUPER is 10% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon RX 6500 XT
Radeon RX 6500 XT Performance109%
Radeon RX 6500 XT is 9% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon RX 5500 XT
Radeon RX 5500 XT Performance108%
Radeon RX 5500 XT is 8% faster than AMD Radeon HD 7990
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