GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4890
173%
173%
AMD Radeon HD 6670
58%
58%
ATI Radeon HD 4890 is approximately 115% faster
Technical Specifications
| Specification | ATI Radeon HD 4890 | AMD Radeon HD 6670 |
|---|---|---|
| Graphics ProcessorDifferent | RV790 | Turks |
| CoresDifferent | 800 | 480 |
| TMUsDifferent | 40 | 24 |
| ROPsDifferent | 16 | 8 |
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 128 bit |
Graphics Processor
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6670 |
|---|---|---|
| GPU NameDifferent | RV790 | Turks |
| GPU VariantDifferent | RV790 XT(215-0758016) | Turks XT(215-0803000) |
| ArchitectureDifferent | TeraScale | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 40 nm |
| TransistorsDifferent | 959 million | 716 million |
| DensityDifferent | 3.4M / mm² | 6.1M / mm² |
| Die SizeDifferent | 282 mm² | 118 mm² |
| Chip PackageDifferent | N/A | FCBGA-962 |
Graphics Card
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6670 |
|---|---|---|
| Release DateDifferent | Apr 2nd, 2009 | Apr 19th, 2011 |
| GenerationDifferent | Radeon R700(HD 4800) | Northern Islands(HD 6600) |
| PredecessorDifferent | Radeon R600 | Evergreen |
| SuccessorDifferent | Evergreen | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 249 USD | 99 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 114 in our database | 35 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6670 |
|---|---|---|
| GPU ClockDifferent | 850 MHz | 800 MHz |
| Memory ClockDifferent | 975 MHz3.9 Gbps effective | 1000 MHz4 Gbps effective |
Memory
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6670 |
|---|---|---|
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 128 bit |
| BandwidthDifferent | 124.8 GB/s | 64.00 GB/s |
Render Config
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6670 |
|---|---|---|
| Shading UnitsDifferent | 800 | 480 |
| TMUsDifferent | 40 | 24 |
| ROPsDifferent | 16 | 8 |
| Compute UnitsDifferent | 10 | 6 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 Cache | 256 KB | 256 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6670 |
|---|---|---|
| Pixel RateDifferent | 13.60 GPixel/s | 6.400 GPixel/s |
| Texture RateDifferent | 34.00 GTexel/s | 19.20 GTexel/s |
| FP32 (float)Different | 1,360.0 GFLOPS | 768.0 GFLOPS |
| FP64 (double)Different | 272.0 GFLOPS (1:5) | N/A |
Board Design
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6670 |
|---|---|---|
| Slot WidthDifferent | Dual-slot | Single-slot |
| LengthDifferent | 241 mm9.5 inches | 168 mm6.6 inches |
| HeightDifferent | 111 mm4.4 inches | N/A |
| WidthDifferent | 40 mm1.6 inches | N/A |
| TDPDifferent | 190 W | 66 W |
| Suggested PSUDifferent | 450 W | 250 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI1x HDMI 1.3a1x VGA |
| Power ConnectorsDifferent | 2x 6-pin | None |
| Board NumberDifferent | 109-B79031-00 | 109-C33437-00 |
Graphics Features
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6670 |
|---|---|---|
| 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 6670
Compare AMD Radeon HD 6670 with other GPUs of similar performance
AMD Radeon HD 6670 vs GeForce GTS 250
GeForce GTS 250 Performance119%
GeForce GTS 250 is 19% faster than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs Radeon HD 4850
Radeon HD 4850 Performance116%
Radeon HD 4850 is 16% faster than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs Radeon HD 4770
Radeon HD 4770 Performance110%
Radeon HD 4770 is 10% faster than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs Radeon HD 4830
Radeon HD 4830 Performance103%
Radeon HD 4830 is 3% faster than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs Radeon HD 6670
Radeon HD 6670 Performance100%
Radeon HD 6670 is 0% slower than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs GeForce 9800 GT
GeForce 9800 GT Performance96%
GeForce 9800 GT is 4% slower than AMD Radeon HD 6670
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