GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6850
AMD Radeon R9 285
Technical Specifications
| Specification | AMD Radeon HD 6850 | AMD Radeon R9 285 |
|---|---|---|
| Graphics ProcessorDifferent | Barts | Tonga |
| CoresDifferent | 960 | 1792 |
| TMUsDifferent | 48 | 112 |
| ROPs | 32 | 32 |
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 256 bit | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 6850 | AMD Radeon R9 285 |
|---|---|---|
| GPU NameDifferent | Barts | Tonga |
| GPU VariantDifferent | Barts PRO(215-0798006) | Tonga PRO(215-0851128) |
| ArchitectureDifferent | TeraScale 2 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 28 nm |
| TransistorsDifferent | 1,700 million | 5,000 million |
| DensityDifferent | 6.7M / mm² | 13.7M / mm² |
| Die SizeDifferent | 255 mm² | 366 mm² |
| Chip PackageDifferent | HFCBGA-1737 | N/A |
Graphics Card
| Feature | AMD Radeon HD 6850 | AMD Radeon R9 285 |
|---|---|---|
| Release DateDifferent | Oct 21st, 2010 | Sep 2nd, 2014 |
| GenerationDifferent | Northern Islands(HD 6800) | Volcanic Islands(R9 200) |
| PredecessorDifferent | Evergreen | Sea Islands |
| SuccessorDifferent | Southern Islands | Pirate Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 179 USD | 249 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 105 in our database | 59 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6850 | AMD Radeon R9 285 |
|---|---|---|
| GPU ClockDifferent | 775 MHz | 918 MHz |
| Memory ClockDifferent | 1000 MHz4 Gbps effective | 1375 MHz5.5 Gbps effective |
Memory
| Feature | AMD Radeon HD 6850 | AMD Radeon R9 285 |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 128.0 GB/s | 176.0 GB/s |
Render Config
| Feature | AMD Radeon HD 6850 | AMD Radeon R9 285 |
|---|---|---|
| Shading UnitsDifferent | 960 | 1792 |
| TMUsDifferent | 48 | 112 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 12 | 28 |
| L1 CacheDifferent | 8 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6850 | AMD Radeon R9 285 |
|---|---|---|
| Pixel RateDifferent | 24.80 GPixel/s | 29.38 GPixel/s |
| Texture RateDifferent | 37.20 GTexel/s | 102.8 GTexel/s |
| FP32 (float)Different | 1,488.0 GFLOPS | 3.290 TFLOPS |
| FP16 (half)Different | N/A | 3.290 TFLOPS (1:1) |
| FP64 (double)Different | N/A | 205.6 GFLOPS (1:16) |
Board Design
| Feature | AMD Radeon HD 6850 | AMD Radeon R9 285 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 198 mm7.8 inches | 221 mm8.7 inches |
| TDPDifferent | 127 W | 190 W |
| Suggested PSUDifferent | 300 W | 450 W |
| OutputsDifferent | 2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin | 2x 6-pin |
| Board NumberDifferent | 109-C22301-00B | C766 |
| HeightDifferent | N/A | 109 mm4.3 inches |
| WidthDifferent | N/A | 36 mm1.4 inches |
Graphics Features
| Feature | AMD Radeon HD 6850 | 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
More Comparisons with AMD Radeon HD 6850
Compare AMD Radeon HD 6850 with other GPUs of similar performance
AMD Radeon HD 6850 vs GeForce GTX 470
GeForce GTX 470 is 16% faster than AMD Radeon HD 6850
AMD Radeon HD 6850 vs GeForce GTX 650 Ti
GeForce GTX 650 Ti is 11% faster than AMD Radeon HD 6850
AMD Radeon HD 6850 vs Radeon HD 5850
Radeon HD 5850 is 9% faster than AMD Radeon HD 6850
AMD Radeon HD 6850 vs GeForce GTX 285
GeForce GTX 285 is 2% faster than AMD Radeon HD 6850
AMD Radeon HD 6850 vs Radeon HD 6850
Radeon HD 6850 is 0% slower than AMD Radeon HD 6850
AMD Radeon HD 6850 vs GeForce GTX 280
GeForce GTX 280 is 6% slower than AMD Radeon HD 6850
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 is 14% faster than AMD Radeon R9 285
AMD Radeon R9 285 vs GeForce GTX 590
GeForce GTX 590 is 14% faster than AMD Radeon R9 285
AMD Radeon R9 285 vs Radeon R9 280X
Radeon R9 280X is 12% faster than AMD Radeon R9 285
AMD Radeon R9 285 vs Radeon HD 6990
Radeon HD 6990 is 10% faster than AMD Radeon R9 285
AMD Radeon R9 285 vs GeForce GTX 1050 Ti
GeForce GTX 1050 Ti is 4% faster than AMD Radeon R9 285
AMD Radeon R9 285 vs GeForce GTX 680
GeForce GTX 680 is 2% faster than AMD Radeon R9 285

