GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4770
65%
65%
AMD Radeon HD 6790
155%
155%
AMD Radeon HD 6790 is approximately 90% faster
Technical Specifications
| Specification | ATI Radeon HD 4770 | AMD Radeon HD 6790 |
|---|---|---|
| Graphics ProcessorDifferent | RV740 | Barts |
| CoresDifferent | 640 | 800 |
| TMUsDifferent | 32 | 40 |
| ROPs | 16 | 16 |
| Memory SizeDifferent | 512 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 128 bit | 256 bit |
Graphics Processor
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6790 |
|---|---|---|
| GPU NameDifferent | RV740 | Barts |
| GPU VariantDifferent | RV740 XT(215-0727019) | Barts LE(215-0798002) |
| ArchitectureDifferent | TeraScale | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process Size | 40 nm | 40 nm |
| TransistorsDifferent | 826 million | 1,700 million |
| DensityDifferent | 6.0M / mm² | 6.7M / mm² |
| Die SizeDifferent | 137 mm² | 255 mm² |
| Chip PackageDifferent | N/A | HFCBGA-1737 |
Graphics Card
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6790 |
|---|---|---|
| Release DateDifferent | Apr 28th, 2009 | Apr 4th, 2011 |
| GenerationDifferent | Radeon R700(HD 4700) | Northern Islands(HD 6700) |
| PredecessorDifferent | Radeon R600 | Evergreen |
| SuccessorDifferent | Evergreen | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 109 USD | 149 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 82 in our database | 37 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6790 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 840 MHz |
| Memory ClockDifferent | 800 MHz3.2 Gbps effective | 1050 MHz4.2 Gbps effective |
Memory
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6790 |
|---|---|---|
| Memory SizeDifferent | 512 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 51.20 GB/s | 134.4 GB/s |
Render Config
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6790 |
|---|---|---|
| Shading UnitsDifferent | 640 | 800 |
| TMUsDifferent | 32 | 40 |
| ROPs | 16 | 16 |
| Compute UnitsDifferent | 8 | 10 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 128 KB | 512 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6790 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 13.44 GPixel/s |
| Texture RateDifferent | 24.00 GTexel/s | 33.60 GTexel/s |
| FP32 (float)Different | 960.0 GFLOPS | 1,344.0 GFLOPS |
| FP64 (double)Different | 192.0 GFLOPS (1:5) | N/A |
Board Design
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6790 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 203 mm8 inches | 198 mm7.8 inches |
| TDPDifferent | 80 W | 150 W |
| Suggested PSUDifferent | 250 W | 450 W |
| OutputsDifferent | 2x DVI1x S-Video | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 |
| Power ConnectorsDifferent | 1x 6-pin | 2x 6-pin |
| Board NumberDifferent | B743 | C220, 109-C22237-00 |
Graphics Features
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6790 |
|---|---|---|
| DirectXDifferent | 10.1 (10_1) | 11.2 (11_0) |
| OpenGLDifferent | 3.3 | 4.4 |
| OpenCLDifferent | 1.1 | 1.2 |
| Vulkan | N/A | N/A |
| Shader ModelDifferent | 4.1 | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
45
Detailed Features
More Comparisons with ATI Radeon HD 4770
Compare ATI Radeon HD 4770 with other GPUs of similar performance
ATI Radeon HD 4770 vs Radeon HD 5750
Radeon HD 5750 Performance115%
Radeon HD 5750 is 15% faster than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs GeForce GTS 450
GeForce GTS 450 Performance111%
GeForce GTS 450 is 11% faster than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs GeForce GTS 250
GeForce GTS 250 Performance108%
GeForce GTS 250 is 8% faster than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs Radeon HD 4850
Radeon HD 4850 Performance105%
Radeon HD 4850 is 5% faster than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs Radeon HD 4770
Radeon HD 4770 Performance100%
Radeon HD 4770 is 0% slower than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs Radeon HD 4830
Radeon HD 4830 Performance94%
Radeon HD 4830 is 6% slower than ATI Radeon HD 4770
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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
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AMD Radeon HD 6790 vs Radeon HD 6850
Radeon HD 6850 Performance116%
Radeon HD 6850 is 16% faster than AMD Radeon HD 6790
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AMD Radeon HD 6790 vs GeForce GTX 280
GeForce GTX 280 Performance109%
GeForce GTX 280 is 9% faster than AMD Radeon HD 6790
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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
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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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