GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GTX 660
358%
358%
AMD Radeon HD 6670
32%
32%
NVIDIA GeForce GTX 660 is approximately 326% faster
Technical Specifications
| Specification | NVIDIA GeForce GTX 660 | AMD Radeon HD 6670 |
|---|---|---|
| Graphics ProcessorDifferent | GK106 | Turks |
| CoresDifferent | 960 | 480 |
| TMUsDifferent | 80 | 24 |
| ROPsDifferent | 24 | 8 |
| Memory SizeDifferent | 2 GB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 192 bit | 128 bit |
Graphics Processor
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6670 |
|---|---|---|
| GPU NameDifferent | GK106 | Turks |
| GPU VariantDifferent | GK106-400-A1 | Turks XT(215-0803000) |
| ArchitectureDifferent | Kepler | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 2,540 million | 716 million |
| DensityDifferent | 11.5M / mm² | 6.1M / mm² |
| Die SizeDifferent | 221 mm² | 118 mm² |
| Chip PackageDifferent | BGA-1425 | FCBGA-962 |
Graphics Card
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6670 |
|---|---|---|
| Release DateDifferent | Sep 6th, 2012 | Apr 19th, 2011 |
| GenerationDifferent | GeForce 600 | Northern Islands(HD 6600) |
| PredecessorDifferent | GeForce 500 | Evergreen |
| SuccessorDifferent | GeForce 700 | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 229 USD | 99 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 77 in our database | 35 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6670 |
|---|---|---|
| Base ClockDifferent | 980 MHz | N/A |
| Boost ClockDifferent | 1032 MHz | N/A |
| Memory ClockDifferent | 1502 MHz6 Gbps effective | 1000 MHz4 Gbps effective |
| GPU ClockDifferent | N/A | 800 MHz |
Memory
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6670 |
|---|---|---|
| Memory SizeDifferent | 2 GB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 192 bit | 128 bit |
| BandwidthDifferent | 144.2 GB/s | 64.00 GB/s |
Render Config
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6670 |
|---|---|---|
| Shading UnitsDifferent | 960 | 480 |
| TMUsDifferent | 80 | 24 |
| ROPsDifferent | 24 | 8 |
| SMX CountDifferent | 5 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 8 KB (per CU) |
| L2 CacheDifferent | 384 KB | 256 KB |
| Compute UnitsDifferent | N/A | 6 |
Theoretical Performance
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6670 |
|---|---|---|
| Pixel RateDifferent | 20.64 GPixel/s | 6.400 GPixel/s |
| Texture RateDifferent | 82.56 GTexel/s | 19.20 GTexel/s |
| FP32 (float)Different | 1.981 TFLOPS | 768.0 GFLOPS |
| FP64 (double)Different | 82.56 GFLOPS (1:24) | N/A |
Board Design
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6670 |
|---|---|---|
| Slot WidthDifferent | Dual-slot | Single-slot |
| LengthDifferent | 241 mm9.5 inches | 168 mm6.6 inches |
| TDPDifferent | 140 W | 66 W |
| Suggested PSUDifferent | 300 W | 250 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x DVI1x HDMI 1.3a1x VGA |
| Power ConnectorsDifferent | 1x 6-pin | None |
| Board NumberDifferent | P2030 SKU 0 | 109-C33437-00 |
Graphics Features
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6670 |
|---|---|---|
| DirectXDifferent | 12 (11_0) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 3.0 | 1.2 |
| VulkanDifferent | 1.2.175 | N/A |
| CUDADifferent | 3.0 | N/A |
| Shader ModelDifferent | 6.5 (5.1) | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
49
Detailed Features
More Comparisons with NVIDIA GeForce GTX 660
Compare NVIDIA GeForce GTX 660 with other GPUs of similar performance
NVIDIA GeForce GTX 660 vs Radeon HD 5970
Radeon HD 5970 Performance117%
Radeon HD 5970 is 17% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 1630
GeForce GTX 1630 Performance117%
GeForce GTX 1630 is 17% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 1050
GeForce GTX 1050 Performance115%
GeForce GTX 1050 is 15% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 760
GeForce GTX 760 Performance114%
GeForce GTX 760 is 14% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 580
GeForce GTX 580 Performance114%
GeForce GTX 580 is 14% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 660 Ti
GeForce GTX 660 Ti Performance113%
GeForce GTX 660 Ti is 13% faster than NVIDIA GeForce GTX 660
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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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