GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4770
56%
56%
AMD Radeon HD 6850
180%
180%
AMD Radeon HD 6850 is approximately 124% faster
Technical Specifications
| Specification | ATI Radeon HD 4770 | AMD Radeon HD 6850 |
|---|---|---|
| Graphics ProcessorDifferent | RV740 | Barts |
| CoresDifferent | 640 | 960 |
| TMUsDifferent | 32 | 48 |
| ROPsDifferent | 16 | 32 |
| 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 6850 |
|---|---|---|
| GPU NameDifferent | RV740 | Barts |
| GPU VariantDifferent | RV740 XT(215-0727019) | Barts PRO(215-0798006) |
| 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 6850 |
|---|---|---|
| Release DateDifferent | Apr 28th, 2009 | Oct 21st, 2010 |
| GenerationDifferent | Radeon R700(HD 4700) | Northern Islands(HD 6800) |
| PredecessorDifferent | Radeon R600 | Evergreen |
| SuccessorDifferent | Evergreen | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 109 USD | 179 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 82 in our database | 105 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6850 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 775 MHz |
| Memory ClockDifferent | 800 MHz3.2 Gbps effective | 1000 MHz4 Gbps effective |
Memory
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6850 |
|---|---|---|
| Memory SizeDifferent | 512 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 51.20 GB/s | 128.0 GB/s |
Render Config
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6850 |
|---|---|---|
| Shading UnitsDifferent | 640 | 960 |
| TMUsDifferent | 32 | 48 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 8 | 12 |
| 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 6850 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 24.80 GPixel/s |
| Texture RateDifferent | 24.00 GTexel/s | 37.20 GTexel/s |
| FP32 (float)Different | 960.0 GFLOPS | 1,488.0 GFLOPS |
| FP64 (double)Different | 192.0 GFLOPS (1:5) | N/A |
Board Design
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6850 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 203 mm8 inches | 198 mm7.8 inches |
| TDPDifferent | 80 W | 127 W |
| Suggested PSUDifferent | 250 W | 300 W |
| OutputsDifferent | 2x DVI1x S-Video | 2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1 |
| Power Connectors | 1x 6-pin | 1x 6-pin |
| Board NumberDifferent | B743 | 109-C22301-00B |
Graphics Features
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6850 |
|---|---|---|
| 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
Compare Detailed Specs
ATI Radeon HD 4770 vs GeForce GTS 450
GeForce GTS 450 Performance111%
GeForce GTS 450 is 11% faster than ATI Radeon HD 4770
Compare Detailed Specs
ATI Radeon HD 4770 vs GeForce GTS 250
GeForce GTS 250 Performance108%
GeForce GTS 250 is 8% faster than ATI Radeon HD 4770
Compare Detailed Specs
ATI Radeon HD 4770 vs Radeon HD 4850
Radeon HD 4850 Performance105%
Radeon HD 4850 is 5% faster than ATI Radeon HD 4770
Compare Detailed Specs
ATI Radeon HD 4770 vs Radeon HD 4770
Radeon HD 4770 Performance100%
Radeon HD 4770 is 0% slower than ATI Radeon HD 4770
Compare Detailed Specs
ATI Radeon HD 4770 vs Radeon HD 4830
Radeon HD 4830 Performance94%
Radeon HD 4830 is 6% slower than ATI Radeon HD 4770
Compare Detailed Specs
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