GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870 X2
264%
264%
AMD Radeon HD 6670
38%
38%
ATI Radeon HD 4870 X2 is approximately 226% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 X2 | AMD Radeon HD 6670 |
|---|---|---|
| Graphics ProcessorDifferent | R700 x2 | Turks |
| CoresDifferent | 800 x2 | 480 |
| TMUsDifferent | 40 x2 | 24 |
| ROPsDifferent | 16 x2 | 8 |
| Memory SizeDifferent | 1024 MB x2 | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 128 bit |
Graphics Processor
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 6670 |
|---|---|---|
| GPU NameDifferent | R700 | Turks |
| GPU VariantDifferent | R700 XT(215-0669045) | 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 | N/A | FCBGA-962 |
Graphics Card
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 6670 |
|---|---|---|
| Release DateDifferent | Aug 12th, 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 | 550 USD | 99 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 79 in our database | 35 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 X2 | 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 X2 | AMD Radeon HD 6670 |
|---|---|---|
| Memory Size | 1024 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 X2 | 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 X2 | 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 X2 | AMD Radeon HD 6670 |
|---|---|---|
| Slot WidthDifferent | Dual-slot | Single-slot |
| LengthDifferent | 267 mm10.5 inches | 168 mm6.6 inches |
| HeightDifferent | 111 mm4.4 inches | N/A |
| WidthDifferent | 38 mm1.5 inches | N/A |
| TDPDifferent | 286 W | 66 W |
| Suggested PSUDifferent | 600 W | 250 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI1x HDMI 1.3a1x VGA |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | None |
| Board NumberDifferent | 109-B50937-00 | 109-C33437-00 |
Graphics Features
| Feature | ATI Radeon HD 4870 X2 | 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 X2
Compare ATI Radeon HD 4870 X2 with other GPUs of similar performance
ATI Radeon HD 4870 X2 vs GeForce GTX 570
GeForce GTX 570 Performance120%
GeForce GTX 570 is 20% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs GeForce GTX 660
GeForce GTX 660 Performance119%
GeForce GTX 660 is 19% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs Radeon R7 370
Radeon R7 370 Performance119%
Radeon R7 370 is 19% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs Radeon HD 6970
Radeon HD 6970 Performance115%
Radeon HD 6970 is 15% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs GeForce GTX 480
GeForce GTX 480 Performance110%
GeForce GTX 480 is 10% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs Radeon HD 7850
Radeon HD 7850 Performance108%
Radeon HD 7850 is 8% faster than ATI Radeon HD 4870 X2
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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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