GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870
264%
264%
AMD Radeon HD 6670
67%
67%
ATI Radeon HD 4870 is approximately 197% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 | AMD Radeon HD 6670 |
|---|---|---|
| Graphics ProcessorDifferent | RV770 | Turks |
| CoresDifferent | 800 | 480 |
| TMUsDifferent | 40 | 24 |
| ROPsDifferent | 16 | 8 |
| Memory SizeDifferent | 512 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 128 bit |
Graphics Processor
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6670 |
|---|---|---|
| GPU NameDifferent | RV770 | Turks |
| GPU VariantDifferent | RV770 XT(215-0669049) | Turks XT(215-0803000) |
| ArchitectureDifferent | TeraScale | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 40 nm |
| TransistorsDifferent | 956 million | 716 million |
| DensityDifferent | 3.7M / mm² | 6.1M / mm² |
| Die SizeDifferent | 256 mm² | 118 mm² |
| Chip PackageDifferent | HFCBGA-1492 | FCBGA-962 |
Graphics Card
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6670 |
|---|---|---|
| Release DateDifferent | Jun 25th, 2008 | 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 | 299 USD | 99 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 135 in our database | 35 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6670 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 800 MHz |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 1000 MHz4 Gbps effective |
Memory
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6670 |
|---|---|---|
| Memory SizeDifferent | 512 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 128 bit |
| BandwidthDifferent | 115.2 GB/s | 64.00 GB/s |
Render Config
| Feature | ATI Radeon HD 4870 | 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 4870 | AMD Radeon HD 6670 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 6.400 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 19.20 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 768.0 GFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | N/A |
Board Design
| Feature | ATI Radeon HD 4870 | 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 | 150 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-B50731-10 | 109-C33437-00 |
Graphics Features
| Feature | ATI Radeon HD 4870 | 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 4870
Compare ATI Radeon HD 4870 with other GPUs of similar performance
ATI Radeon HD 4870 vs GeForce GTX 460
GeForce GTX 460 Performance120%
GeForce GTX 460 is 20% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs Radeon HD 4890
Radeon HD 4890 Performance116%
Radeon HD 4890 is 16% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs Radeon HD 6790
Radeon HD 6790 Performance114%
Radeon HD 6790 is 14% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs Radeon HD 5830
Radeon HD 5830 Performance108%
Radeon HD 5830 is 8% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs GeForce GTX 650
GeForce GTX 650 Performance102%
GeForce GTX 650 is 2% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs GeForce GTX 550 Ti
GeForce GTX 550 Ti Performance101%
GeForce GTX 550 Ti is 1% faster than ATI Radeon HD 4870
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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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