GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4890
102%
102%
AMD Radeon HD 6790
98%
98%
ATI Radeon HD 4890 is approximately 4% faster
Technical Specifications
| Specification | ATI Radeon HD 4890 | AMD Radeon HD 6790 |
|---|---|---|
| Graphics ProcessorDifferent | RV790 | Barts |
| Cores | 800 | 800 |
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 256 bit | 256 bit |
Graphics Processor
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6790 |
|---|---|---|
| GPU NameDifferent | RV790 | Barts |
| GPU VariantDifferent | RV790 XT(215-0758016) | Barts LE(215-0798002) |
| ArchitectureDifferent | TeraScale | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 40 nm |
| TransistorsDifferent | 959 million | 1,700 million |
| DensityDifferent | 3.4M / mm² | 6.7M / mm² |
| Die SizeDifferent | 282 mm² | 255 mm² |
| Chip PackageDifferent | N/A | HFCBGA-1737 |
Graphics Card
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6790 |
|---|---|---|
| Release DateDifferent | Apr 2nd, 2009 | 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 | 249 USD | 149 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 114 in our database | 37 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6790 |
|---|---|---|
| GPU ClockDifferent | 850 MHz | 840 MHz |
| Memory ClockDifferent | 975 MHz3.9 Gbps effective | 1050 MHz4.2 Gbps effective |
Memory
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6790 |
|---|---|---|
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 124.8 GB/s | 134.4 GB/s |
Render Config
| Feature | ATI Radeon HD 4890 | 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 4890 | AMD Radeon HD 6790 |
|---|---|---|
| Pixel RateDifferent | 13.60 GPixel/s | 13.44 GPixel/s |
| Texture RateDifferent | 34.00 GTexel/s | 33.60 GTexel/s |
| FP32 (float)Different | 1,360.0 GFLOPS | 1,344.0 GFLOPS |
| FP64 (double)Different | 272.0 GFLOPS (1:5) | N/A |
Board Design
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6790 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 241 mm9.5 inches | 198 mm7.8 inches |
| HeightDifferent | 111 mm4.4 inches | N/A |
| WidthDifferent | 40 mm1.6 inches | N/A |
| TDPDifferent | 190 W | 150 W |
| Suggested PSU | 450 W | 450 W |
| OutputsDifferent | 2x DVI1x S-Video | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 |
| Power Connectors | 2x 6-pin | 2x 6-pin |
| Board NumberDifferent | 109-B79031-00 | C220, 109-C22237-00 |
Graphics Features
| Feature | ATI Radeon HD 4890 | 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
47
Detailed Features
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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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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