GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GTX 660
193%
193%
AMD Radeon HD 7770 GHz Edition
156%
156%
NVIDIA GeForce GTX 660 is approximately 37% faster
Technical Specifications
| Specification | NVIDIA GeForce GTX 660 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Graphics ProcessorDifferent | GK106 | Cape Verde |
| CoresDifferent | 960 | 640 |
| TMUsDifferent | 80 | 40 |
| ROPsDifferent | 24 | 16 |
| 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 7770 GHz Edition |
|---|---|---|
| GPU NameDifferent | GK106 | Cape Verde |
| GPU VariantDifferent | GK106-400-A1 | Cape Verde XT(215-0825117) |
| ArchitectureDifferent | Kepler | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 2,540 million | 1,500 million |
| DensityDifferent | 11.5M / mm² | 12.2M / mm² |
| Die SizeDifferent | 221 mm² | 123 mm² |
| Chip PackageDifferent | BGA-1425 | FCBGA-962 |
Graphics Card
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Release DateDifferent | Sep 6th, 2012 | Feb 15th, 2012 |
| GenerationDifferent | GeForce 600 | Southern Islands(HD 7700) |
| PredecessorDifferent | GeForce 500 | Northern Islands |
| SuccessorDifferent | GeForce 700 | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 229 USD | 159 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 77 in our database | 97 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Base ClockDifferent | 980 MHz | N/A |
| Boost ClockDifferent | 1032 MHz | N/A |
| Memory ClockDifferent | 1502 MHz6 Gbps effective | 1125 MHz4.5 Gbps effective |
| GPU ClockDifferent | N/A | 1000 MHz |
Memory
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Memory SizeDifferent | 2 GB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 192 bit | 128 bit |
| BandwidthDifferent | 144.2 GB/s | 72.00 GB/s |
Render Config
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Shading UnitsDifferent | 960 | 640 |
| TMUsDifferent | 80 | 40 |
| ROPsDifferent | 24 | 16 |
| SMX CountDifferent | 5 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 16 KB (per CU) |
| L2 CacheDifferent | 384 KB | 256 KB |
| Compute UnitsDifferent | N/A | 10 |
Theoretical Performance
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Pixel RateDifferent | 20.64 GPixel/s | 16.00 GPixel/s |
| Texture RateDifferent | 82.56 GTexel/s | 40.00 GTexel/s |
| FP32 (float)Different | 1.981 TFLOPS | 1,280.0 GFLOPS |
| FP64 (double)Different | 82.56 GFLOPS (1:24) | 80.00 GFLOPS (1:16) |
Board Design
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 241 mm9.5 inches | 210 mm8.3 inches |
| TDPDifferent | 140 W | 80 W |
| Suggested PSUDifferent | 300 W | 250 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power Connectors | 1x 6-pin | 1x 6-pin |
| Board NumberDifferent | P2030 SKU 0 | 109-C44157-00C, C468 |
Graphics Features
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| DirectXDifferent | 12 (11_0) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 3.0 | 2.1 (1.2) |
| VulkanDifferent | 1.2.175 | 1.2.170 |
| CUDADifferent | 3.0 | N/A |
| Shader Model | 6.5 (5.1) | 6.5 (5.1) |
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 7770 GHz Edition
Compare AMD Radeon HD 7770 GHz Edition with other GPUs of similar performance
AMD Radeon HD 7770 GHz Edition vs GeForce GTX 650 Ti
GeForce GTX 650 Ti Performance119%
GeForce GTX 650 Ti is 19% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 5850
Radeon HD 5850 Performance117%
Radeon HD 5850 is 17% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 285
GeForce GTX 285 Performance109%
GeForce GTX 285 is 9% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 6850
Radeon HD 6850 Performance107%
Radeon HD 6850 is 7% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 280
GeForce GTX 280 Performance100%
GeForce GTX 280 is 0% slower than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 7770 GHz Edition
Radeon HD 7770 GHz Edition Performance100%
Radeon HD 7770 GHz Edition is 0% slower than AMD Radeon HD 7770 GHz Edition
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