GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6850
45%
45%
AMD Radeon HD 7970
249%
249%
AMD Radeon HD 7970 is approximately 204% faster
Technical Specifications
| Specification | AMD Radeon HD 6850 | AMD Radeon HD 7970 |
|---|---|---|
| Graphics ProcessorDifferent | Barts | Tahiti |
| CoresDifferent | 960 | 2048 |
| TMUsDifferent | 48 | 128 |
| ROPs | 32 | 32 |
| Memory SizeDifferent | 1024 MB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 384 bit |
Graphics Processor
| Feature | AMD Radeon HD 6850 | AMD Radeon HD 7970 |
|---|---|---|
| GPU NameDifferent | Barts | Tahiti |
| GPU VariantDifferent | Barts PRO(215-0798006) | Tahiti XT(215-0821060) |
| ArchitectureDifferent | TeraScale 2 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 28 nm |
| TransistorsDifferent | 1,700 million | 4,313 million |
| DensityDifferent | 6.7M / mm² | 12.3M / mm² |
| Die SizeDifferent | 255 mm² | 352 mm² |
| Chip PackageDifferent | HFCBGA-1737 | N/A |
Graphics Card
| Feature | AMD Radeon HD 6850 | AMD Radeon HD 7970 |
|---|---|---|
| Release DateDifferent | Oct 21st, 2010 | Jan 9th, 2012 |
| GenerationDifferent | Northern Islands(HD 6800) | Southern Islands(HD 7900) |
| PredecessorDifferent | Evergreen | Northern Islands |
| SuccessorDifferent | Southern Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 179 USD | 549 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 105 in our database | 191 in our database |
| AnnouncedDifferent | N/A | Dec 22nd, 2011 |
Clock Speeds
| Feature | AMD Radeon HD 6850 | AMD Radeon HD 7970 |
|---|---|---|
| GPU ClockDifferent | 775 MHz | 925 MHz |
| Memory ClockDifferent | 1000 MHz4 Gbps effective | 1375 MHz5.5 Gbps effective |
Memory
| Feature | AMD Radeon HD 6850 | AMD Radeon HD 7970 |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 384 bit |
| BandwidthDifferent | 128.0 GB/s | 264.0 GB/s |
Render Config
| Feature | AMD Radeon HD 6850 | AMD Radeon HD 7970 |
|---|---|---|
| Shading UnitsDifferent | 960 | 2048 |
| TMUsDifferent | 48 | 128 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 12 | 32 |
| L1 CacheDifferent | 8 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 512 KB | 768 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6850 | AMD Radeon HD 7970 |
|---|---|---|
| Pixel RateDifferent | 24.80 GPixel/s | 29.60 GPixel/s |
| Texture RateDifferent | 37.20 GTexel/s | 118.4 GTexel/s |
| FP32 (float)Different | 1,488.0 GFLOPS | 3.789 TFLOPS |
| FP64 (double)Different | N/A | 947.2 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon HD 6850 | AMD Radeon HD 7970 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 198 mm7.8 inches | 275 mm10.8 inches |
| TDPDifferent | 127 W | 250 W |
| Suggested PSUDifferent | 300 W | 600 W |
| OutputsDifferent | 2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1 | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | 109-C22301-00B | 109-C38637-00 |
| HeightDifferent | N/A | 111 mm4.4 inches |
| WidthDifferent | N/A | 38 mm1.5 inches |
Graphics Features
| Feature | AMD Radeon HD 6850 | AMD Radeon HD 7970 |
|---|---|---|
| DirectXDifferent | 11.2 (11_0) | 12 (11_1) |
| OpenGLDifferent | 4.4 | 4.6 |
| OpenCLDifferent | 1.2 | 2.1 (1.2) |
| VulkanDifferent | N/A | 1.2.170 |
| Shader ModelDifferent | 5.0 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
48
Detailed Features
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 Performance116%
GeForce GTX 470 is 16% faster than AMD Radeon HD 6850
Compare Detailed Specs
AMD Radeon HD 6850 vs GeForce GTX 650 Ti
GeForce GTX 650 Ti Performance111%
GeForce GTX 650 Ti is 11% faster than AMD Radeon HD 6850
Compare Detailed Specs
AMD Radeon HD 6850 vs Radeon HD 5850
Radeon HD 5850 Performance109%
Radeon HD 5850 is 9% faster than AMD Radeon HD 6850
Compare Detailed Specs
AMD Radeon HD 6850 vs GeForce GTX 285
GeForce GTX 285 Performance102%
GeForce GTX 285 is 2% faster than AMD Radeon HD 6850
Compare Detailed Specs
AMD Radeon HD 6850 vs Radeon HD 6850
Radeon HD 6850 Performance100%
Radeon HD 6850 is 0% slower than AMD Radeon HD 6850
Compare Detailed Specs
AMD Radeon HD 6850 vs GeForce GTX 280
GeForce GTX 280 Performance94%
GeForce GTX 280 is 6% slower than AMD Radeon HD 6850
Compare Detailed Specs
More Comparisons with AMD Radeon HD 7970
Compare AMD Radeon HD 7970 with other GPUs of similar performance
AMD Radeon HD 7970 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance113%
Radeon HD 7970 GHz Edition is 13% faster than AMD Radeon HD 7970
Compare Detailed Specs
AMD Radeon HD 7970 vs GeForce GTX 590
GeForce GTX 590 Performance113%
GeForce GTX 590 is 13% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs Radeon R9 280X
Radeon R9 280X Performance111%
Radeon R9 280X is 11% faster than AMD Radeon HD 7970
Compare Detailed Specs
AMD Radeon HD 7970 vs Radeon HD 6990
Radeon HD 6990 Performance109%
Radeon HD 6990 is 9% faster than AMD Radeon HD 7970
Compare Detailed Specs
AMD Radeon HD 7970 vs GeForce GTX 1050 Ti
GeForce GTX 1050 Ti Performance103%
GeForce GTX 1050 Ti is 3% faster than AMD Radeon HD 7970
Compare Detailed Specs
AMD Radeon HD 7970 vs GeForce GTX 680
GeForce GTX 680 Performance101%
GeForce GTX 680 is 1% faster than AMD Radeon HD 7970
Compare Detailed Specs