GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4850
68%
68%
AMD Radeon HD 6790
147%
147%
AMD Radeon HD 6790 is approximately 79% faster
Technical Specifications
| Specification | ATI Radeon HD 4850 | AMD Radeon HD 6790 |
|---|---|---|
| Graphics ProcessorDifferent | RV770 | Barts |
| Cores | 800 | 800 |
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Memory SizeDifferent | 512 MB | 1024 MB |
| Memory TypeDifferent | GDDR3 | GDDR5 |
| Bus Width | 256 bit | 256 bit |
Graphics Processor
| Feature | ATI Radeon HD 4850 | AMD Radeon HD 6790 |
|---|---|---|
| GPU NameDifferent | RV770 | Barts |
| GPU VariantDifferent | RV770 PRO(215-0669065) | Barts LE(215-0798002) |
| ArchitectureDifferent | TeraScale | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 40 nm |
| TransistorsDifferent | 956 million | 1,700 million |
| DensityDifferent | 3.7M / mm² | 6.7M / mm² |
| Die SizeDifferent | 256 mm² | 255 mm² |
| Chip PackageDifferent | HFCBGA-1492 | HFCBGA-1737 |
Graphics Card
| Feature | ATI Radeon HD 4850 | AMD Radeon HD 6790 |
|---|---|---|
| Release DateDifferent | Jun 25th, 2008 | Apr 4th, 2011 |
| GenerationDifferent | Radeon R700(HD 4800) | Northern Islands(HD 6700) |
| PredecessorDifferent | Radeon R600 | Evergreen |
| SuccessorDifferent | Evergreen | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 199 USD | 149 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 127 in our database | 37 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4850 | AMD Radeon HD 6790 |
|---|---|---|
| GPU ClockDifferent | 625 MHz | 840 MHz |
| Memory ClockDifferent | 993 MHz1986 Mbps effective | 1050 MHz4.2 Gbps effective |
Memory
| Feature | ATI Radeon HD 4850 | AMD Radeon HD 6790 |
|---|---|---|
| Memory SizeDifferent | 512 MB | 1024 MB |
| Memory TypeDifferent | GDDR3 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 63.55 GB/s | 134.4 GB/s |
Render Config
| Feature | ATI Radeon HD 4850 | AMD Radeon HD 6790 |
|---|---|---|
| Shading Units | 800 | 800 |
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Compute Units | 10 | 10 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 256 KB | 512 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4850 | AMD Radeon HD 6790 |
|---|---|---|
| Pixel RateDifferent | 10.00 GPixel/s | 13.44 GPixel/s |
| Texture RateDifferent | 25.00 GTexel/s | 33.60 GTexel/s |
| FP32 (float)Different | 1,000.0 GFLOPS | 1,344.0 GFLOPS |
| FP64 (double)Different | 200.0 GFLOPS (1:5) | N/A |
Board Design
| Feature | ATI Radeon HD 4850 | AMD Radeon HD 6790 |
|---|---|---|
| Slot WidthDifferent | Single-slot | Dual-slot |
| LengthDifferent | 246 mm9.7 inches | 198 mm7.8 inches |
| TDPDifferent | 110 W | 150 W |
| Suggested PSUDifferent | 300 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 | 109-B50131-00 | C220, 109-C22237-00 |
Graphics Features
| Feature | ATI Radeon HD 4850 | 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 4850
Compare ATI Radeon HD 4850 with other GPUs of similar performance
ATI Radeon HD 4850 vs Radeon HD 5750
Radeon HD 5750 Performance109%
Radeon HD 5750 is 9% faster than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs GeForce GTS 450
GeForce GTS 450 Performance105%
GeForce GTS 450 is 5% faster than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs GeForce GTS 250
GeForce GTS 250 Performance102%
GeForce GTS 250 is 2% faster than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs Radeon HD 4850
Radeon HD 4850 Performance100%
Radeon HD 4850 is 0% slower than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs Radeon HD 4770
Radeon HD 4770 Performance95%
Radeon HD 4770 is 5% slower than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs Radeon HD 4830
Radeon HD 4830 Performance89%
Radeon HD 4830 is 11% slower than ATI Radeon HD 4850
Compare Detailed Specs
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
Compare Detailed Specs
AMD Radeon HD 6790 vs GeForce GTX 460
GeForce GTX 460 Performance106%
GeForce GTX 460 is 6% faster than AMD Radeon HD 6790
Compare Detailed Specs