GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6790
60%
60%
AMD Radeon HD 7850
167%
167%
AMD Radeon HD 7850 is approximately 107% faster
Technical Specifications
| Specification | AMD Radeon HD 6790 | AMD Radeon HD 7850 |
|---|---|---|
| Graphics ProcessorDifferent | Barts | Pitcairn |
| CoresDifferent | 800 | 1024 |
| TMUsDifferent | 40 | 64 |
| ROPsDifferent | 16 | 32 |
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 256 bit | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 7850 |
|---|---|---|
| GPU NameDifferent | Barts | Pitcairn |
| GPU VariantDifferent | Barts LE(215-0798002) | Pitcairn PRO(215-0828062) |
| ArchitectureDifferent | TeraScale 2 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 28 nm |
| TransistorsDifferent | 1,700 million | 2,800 million |
| DensityDifferent | 6.7M / mm² | 13.2M / mm² |
| Die SizeDifferent | 255 mm² | 212 mm² |
| Chip PackageDifferent | HFCBGA-1737 | FCBGA-1737 |
Graphics Card
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 7850 |
|---|---|---|
| Release DateDifferent | Apr 4th, 2011 | Mar 5th, 2012 |
| GenerationDifferent | Northern Islands(HD 6700) | Southern Islands(HD 7800) |
| PredecessorDifferent | Evergreen | Northern Islands |
| SuccessorDifferent | Southern Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 149 USD | 249 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 37 in our database | 71 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 7850 |
|---|---|---|
| GPU ClockDifferent | 840 MHz | 860 MHz |
| Memory ClockDifferent | 1050 MHz4.2 Gbps effective | 1200 MHz4.8 Gbps effective |
Memory
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 7850 |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 134.4 GB/s | 153.6 GB/s |
Render Config
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 7850 |
|---|---|---|
| Shading UnitsDifferent | 800 | 1024 |
| TMUsDifferent | 40 | 64 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 10 | 16 |
| L1 CacheDifferent | 8 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 7850 |
|---|---|---|
| Pixel RateDifferent | 13.44 GPixel/s | 27.52 GPixel/s |
| Texture RateDifferent | 33.60 GTexel/s | 55.04 GTexel/s |
| FP32 (float)Different | 1,344.0 GFLOPS | 1.761 TFLOPS |
| FP64 (double)Different | N/A | 110.1 GFLOPS (1:16) |
Board Design
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 7850 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 198 mm7.8 inches | 210 mm8.3 inches |
| TDPDifferent | 150 W | 130 W |
| Suggested PSUDifferent | 450 W | 300 W |
| OutputsDifferent | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 6-pin | 1x 6-pin |
| Board NumberDifferent | C220, 109-C22237-00 | 109-C40147-00, 109-C40337-00A |
Graphics Features
| Feature | AMD Radeon HD 6790 | AMD Radeon HD 7850 |
|---|---|---|
| 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
45
Detailed Features
More Comparisons with AMD Radeon HD 6790
Compare AMD Radeon HD 6790 with other GPUs of similar performance
AMD Radeon HD 6790 vs GeForce GTX 285
GeForce GTX 285 Performance119%
GeForce GTX 285 is 19% faster than AMD Radeon HD 6790
Compare Detailed Specs
AMD Radeon HD 6790 vs Radeon HD 6850
Radeon HD 6850 Performance116%
Radeon HD 6850 is 16% faster than AMD Radeon HD 6790
Compare Detailed Specs
AMD Radeon HD 6790 vs GeForce GTX 280
GeForce GTX 280 Performance109%
GeForce GTX 280 is 9% faster than AMD Radeon HD 6790
Compare Detailed Specs
AMD Radeon HD 6790 vs Radeon HD 7770 GHz Edition
Radeon HD 7770 GHz Edition Performance109%
Radeon HD 7770 GHz Edition is 9% faster than AMD Radeon HD 6790
Compare Detailed Specs
AMD Radeon HD 6790 vs GeForce GTX 275
GeForce GTX 275 Performance108%
GeForce GTX 275 is 8% faster than AMD Radeon HD 6790
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AMD Radeon HD 6790 vs GeForce GTX 460
GeForce GTX 460 Performance106%
GeForce GTX 460 is 6% faster than AMD Radeon HD 6790
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More Comparisons with AMD Radeon HD 7850
Compare AMD Radeon HD 7850 with other GPUs of similar performance
AMD Radeon HD 7850 vs GeForce GTX 950
GeForce GTX 950 Performance120%
GeForce GTX 950 is 20% faster than AMD Radeon HD 7850
Compare Detailed Specs
AMD Radeon HD 7850 vs Radeon RX 560
Radeon RX 560 Performance113%
Radeon RX 560 is 13% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs GeForce GTX 570
GeForce GTX 570 Performance111%
GeForce GTX 570 is 11% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs GeForce GTX 660
GeForce GTX 660 Performance111%
GeForce GTX 660 is 11% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs Radeon R7 370
Radeon R7 370 Performance110%
Radeon R7 370 is 10% faster than AMD Radeon HD 7850
Compare Detailed Specs
AMD Radeon HD 7850 vs Radeon HD 6970
Radeon HD 6970 Performance106%
Radeon HD 6970 is 6% faster than AMD Radeon HD 7850
Compare Detailed Specs