GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6990
110%
110%
AMD Radeon R9 285
91%
91%
AMD Radeon HD 6990 is approximately 19% faster
Technical Specifications
| Specification | AMD Radeon HD 6990 | AMD Radeon R9 285 |
|---|---|---|
| Graphics ProcessorDifferent | Antilles x2 | Tonga |
| CoresDifferent | 1536 x2 | 1792 |
| TMUsDifferent | 96 x2 | 112 |
| ROPsDifferent | 32 x2 | 32 |
| Memory SizeDifferent | 2 GB x2 | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 285 |
|---|---|---|
| GPU NameDifferent | Antilles | Tonga |
| GPU VariantDifferent | Antilles XT(215-0807027) | Tonga PRO(215-0851128) |
| ArchitectureDifferent | TeraScale 3 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 28 nm |
| TransistorsDifferent | 2,640 million | 5,000 million |
| DensityDifferent | 6.8M / mm² | 13.7M / mm² |
| Die SizeDifferent | 389 mm² | 366 mm² |
Graphics Card
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 285 |
|---|---|---|
| Release DateDifferent | Mar 8th, 2011 | Sep 2nd, 2014 |
| GenerationDifferent | Northern Islands(HD 6900) | Volcanic Islands(R9 200) |
| PredecessorDifferent | Evergreen | Sea Islands |
| SuccessorDifferent | Southern Islands | Pirate Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 699 USD | 249 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 47 in our database | 59 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 285 |
|---|---|---|
| GPU ClockDifferent | 830 MHz | 918 MHz |
| Memory ClockDifferent | 1250 MHz5 Gbps effective | 1375 MHz5.5 Gbps effective |
Memory
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 285 |
|---|---|---|
| Memory Size | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 160.0 GB/s | 176.0 GB/s |
Render Config
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 285 |
|---|---|---|
| Shading UnitsDifferent | 1536 | 1792 |
| TMUsDifferent | 96 | 112 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 24 | 28 |
| L1 CacheDifferent | 8 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 285 |
|---|---|---|
| Pixel RateDifferent | 26.56 GPixel/s | 29.38 GPixel/s |
| Texture RateDifferent | 79.68 GTexel/s | 102.8 GTexel/s |
| FP32 (float)Different | 2.550 TFLOPS | 3.290 TFLOPS |
| FP64 (double)Different | 637.4 GFLOPS (1:4) | 205.6 GFLOPS (1:16) |
| FP16 (half)Different | N/A | 3.290 TFLOPS (1:1) |
Board Design
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 285 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 310 mm12.2 inches | 221 mm8.7 inches |
| HeightDifferent | 115 mm4.5 inches | 109 mm4.3 inches |
| WidthDifferent | 40 mm1.6 inches | 36 mm1.4 inches |
| TDPDifferent | 375 W | 190 W |
| Suggested PSUDifferent | 750 W | 450 W |
| OutputsDifferent | 1x DVI4x mini-DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 8-pin | 2x 6-pin |
| Board NumberDifferent | 109-C20647-00 | C766 |
Graphics Features
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 285 |
|---|---|---|
| DirectXDifferent | 11.2 (11_0) | 12 (12_0) |
| OpenGLDifferent | 4.4 | 4.6 |
| OpenCLDifferent | 1.2 | 2.1 |
| VulkanDifferent | N/A | 1.2.170 |
| Shader ModelDifferent | 5.0 | 6.5 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
47
Detailed Features
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
Compare Detailed Specs
AMD Radeon HD 6990 vs Radeon RX 6400
Radeon RX 6400 Performance117%
Radeon RX 6400 is 17% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Arc A380
Arc A380 Performance115%
Arc A380 is 15% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs GeForce GTX 780
GeForce GTX 780 Performance115%
GeForce GTX 780 is 15% faster than AMD Radeon HD 6990
Compare Detailed Specs
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
Compare Detailed Specs
AMD Radeon HD 6990 vs GeForce GTX 590
GeForce GTX 590 Performance104%
GeForce GTX 590 is 4% faster than AMD Radeon HD 6990
Compare Detailed Specs
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
Compare Detailed Specs
AMD Radeon R9 285 vs GeForce GTX 590
GeForce GTX 590 Performance114%
GeForce GTX 590 is 14% faster than AMD Radeon R9 285
Compare Detailed Specs
AMD Radeon R9 285 vs Radeon R9 280X
Radeon R9 280X Performance112%
Radeon R9 280X is 12% faster than AMD Radeon R9 285
Compare Detailed Specs
AMD Radeon R9 285 vs Radeon HD 6990
Radeon HD 6990 Performance110%
Radeon HD 6990 is 10% faster than AMD Radeon R9 285
Compare Detailed Specs
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
Compare Detailed Specs
AMD Radeon R9 285 vs GeForce GTX 680
GeForce GTX 680 Performance102%
GeForce GTX 680 is 2% faster than AMD Radeon R9 285
Compare Detailed Specs