GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7770 GHz Edition
285%
285%
ATI Radeon HD 4890
94%
94%
AMD Radeon HD 7770 GHz Edition is approximately 191% faster
Technical Specifications
| Specification | AMD Radeon HD 7770 GHz Edition | ATI Radeon HD 4890 |
|---|---|---|
| Graphics ProcessorDifferent | Cape Verde | RV790 |
| CoresDifferent | 640 | 800 |
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 128 bit | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 7770 GHz Edition | ATI Radeon HD 4890 |
|---|---|---|
| GPU NameDifferent | Cape Verde | RV790 |
| GPU VariantDifferent | Cape Verde XT(215-0825117) | RV790 XT(215-0758016) |
| ArchitectureDifferent | GCN 1.0 | TeraScale |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 55 nm |
| TransistorsDifferent | 1,500 million | 959 million |
| DensityDifferent | 12.2M / mm² | 3.4M / mm² |
| Die SizeDifferent | 123 mm² | 282 mm² |
| Chip PackageDifferent | FCBGA-962 | N/A |
Graphics Card
| Feature | AMD Radeon HD 7770 GHz Edition | ATI Radeon HD 4890 |
|---|---|---|
| Release DateDifferent | Feb 15th, 2012 | Apr 2nd, 2009 |
| GenerationDifferent | Southern Islands(HD 7700) | Radeon R700(HD 4800) |
| PredecessorDifferent | Northern Islands | Radeon R600 |
| SuccessorDifferent | Sea Islands | Evergreen |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 159 USD | 249 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 97 in our database | 114 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7770 GHz Edition | ATI Radeon HD 4890 |
|---|---|---|
| GPU ClockDifferent | 1000 MHz | 850 MHz |
| Memory ClockDifferent | 1125 MHz4.5 Gbps effective | 975 MHz3.9 Gbps effective |
Memory
| Feature | AMD Radeon HD 7770 GHz Edition | ATI Radeon HD 4890 |
|---|---|---|
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 72.00 GB/s | 124.8 GB/s |
Render Config
| Feature | AMD Radeon HD 7770 GHz Edition | ATI Radeon HD 4890 |
|---|---|---|
| Shading UnitsDifferent | 640 | 800 |
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Compute Units | 10 | 10 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 256 KB | 256 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7770 GHz Edition | ATI Radeon HD 4890 |
|---|---|---|
| Pixel RateDifferent | 16.00 GPixel/s | 13.60 GPixel/s |
| Texture RateDifferent | 40.00 GTexel/s | 34.00 GTexel/s |
| FP32 (float)Different | 1,280.0 GFLOPS | 1,360.0 GFLOPS |
| FP64 (double)Different | 80.00 GFLOPS (1:16) | 272.0 GFLOPS (1:5) |
Board Design
| Feature | AMD Radeon HD 7770 GHz Edition | ATI Radeon HD 4890 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 210 mm8.3 inches | 241 mm9.5 inches |
| TDPDifferent | 80 W | 190 W |
| Suggested PSUDifferent | 250 W | 450 W |
| OutputsDifferent | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | 2x DVI1x S-Video |
| Power ConnectorsDifferent | 1x 6-pin | 2x 6-pin |
| Board NumberDifferent | 109-C44157-00C, C468 | 109-B79031-00 |
| HeightDifferent | N/A | 111 mm4.4 inches |
| WidthDifferent | N/A | 40 mm1.6 inches |
Graphics Features
| Feature | AMD Radeon HD 7770 GHz Edition | ATI Radeon HD 4890 |
|---|---|---|
| DirectXDifferent | 12 (11_1) | 10.1 (10_1) |
| OpenGLDifferent | 4.6 | 3.3 |
| OpenCLDifferent | 2.1 (1.2) | 1.1 |
| VulkanDifferent | 1.2.170 | N/A |
| Shader ModelDifferent | 6.5 (5.1) | 4.1 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
47
Detailed Features
More Comparisons with AMD Radeon HD 7770 GHz Edition
Compare AMD Radeon HD 7770 GHz Edition with other GPUs of similar performance
AMD Radeon HD 7770 GHz Edition vs GeForce GTX 650 Ti
GeForce GTX 650 Ti Performance119%
GeForce GTX 650 Ti is 19% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 5850
Radeon HD 5850 Performance117%
Radeon HD 5850 is 17% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 285
GeForce GTX 285 Performance109%
GeForce GTX 285 is 9% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 6850
Radeon HD 6850 Performance107%
Radeon HD 6850 is 7% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 280
GeForce GTX 280 Performance100%
GeForce GTX 280 is 0% slower than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 7770 GHz Edition
Radeon HD 7770 GHz Edition Performance100%
Radeon HD 7770 GHz Edition is 0% slower than AMD Radeon HD 7770 GHz Edition
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More Comparisons with ATI Radeon HD 4890
Compare ATI Radeon HD 4890 with other GPUs of similar performance
ATI Radeon HD 4890 vs GeForce GTX 285
GeForce GTX 285 Performance117%
GeForce GTX 285 is 17% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs Radeon HD 6850
Radeon HD 6850 Performance114%
Radeon HD 6850 is 14% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs GeForce GTX 280
GeForce GTX 280 Performance107%
GeForce GTX 280 is 7% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs Radeon HD 7770 GHz Edition
Radeon HD 7770 GHz Edition Performance107%
Radeon HD 7770 GHz Edition is 7% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs GeForce GTX 275
GeForce GTX 275 Performance106%
GeForce GTX 275 is 6% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs GeForce GTX 460
GeForce GTX 460 Performance104%
GeForce GTX 460 is 4% faster than ATI Radeon HD 4890
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