GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GTX 660
101%
101%
AMD Radeon R9 270X
112%
112%
AMD Radeon R9 270X is approximately 11% faster
Technical Specifications
| Specification | NVIDIA GeForce GTX 660 | AMD Radeon R9 270X |
|---|---|---|
| Graphics ProcessorDifferent | GK106 | Curacao |
| CoresDifferent | 960 | 1280 |
| TMUs | 80 | 80 |
| ROPsDifferent | 24 | 32 |
| Memory Size | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 192 bit | 256 bit |
Graphics Processor
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon R9 270X |
|---|---|---|
| GPU NameDifferent | GK106 | Curacao |
| GPU VariantDifferent | GK106-400-A1 | Curacao XT(215-0848004) |
| ArchitectureDifferent | Kepler | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 2,540 million | 2,800 million |
| DensityDifferent | 11.5M / mm² | 13.2M / mm² |
| Die SizeDifferent | 221 mm² | 212 mm² |
| Chip PackageDifferent | BGA-1425 | FCBGA-1737 |
Graphics Card
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon R9 270X |
|---|---|---|
| Release DateDifferent | Sep 6th, 2012 | Oct 8th, 2013 |
| GenerationDifferent | GeForce 600 | Volcanic Islands(R9 200) |
| PredecessorDifferent | GeForce 500 | Sea Islands |
| SuccessorDifferent | GeForce 700 | Pirate Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 229 USD | 199 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 77 in our database | 90 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon R9 270X |
|---|---|---|
| Base ClockDifferent | 980 MHz | 1000 MHz |
| Boost ClockDifferent | 1032 MHz | 1050 MHz |
| Memory ClockDifferent | 1502 MHz6 Gbps effective | 1400 MHz5.6 Gbps effective |
Memory
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon R9 270X |
|---|---|---|
| Memory Size | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 192 bit | 256 bit |
| BandwidthDifferent | 144.2 GB/s | 179.2 GB/s |
Render Config
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon R9 270X |
|---|---|---|
| Shading UnitsDifferent | 960 | 1280 |
| TMUs | 80 | 80 |
| ROPsDifferent | 24 | 32 |
| SMX CountDifferent | 5 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 16 KB (per CU) |
| L2 CacheDifferent | 384 KB | 512 KB |
| Compute UnitsDifferent | N/A | 20 |
Theoretical Performance
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon R9 270X |
|---|---|---|
| Pixel RateDifferent | 20.64 GPixel/s | 33.60 GPixel/s |
| Texture RateDifferent | 82.56 GTexel/s | 84.00 GTexel/s |
| FP32 (float)Different | 1.981 TFLOPS | 2.688 TFLOPS |
| FP64 (double)Different | 82.56 GFLOPS (1:24) | 168.0 GFLOPS (1:16) |
Board Design
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon R9 270X |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| Length | 241 mm9.5 inches | 241 mm9.5 inches |
| TDPDifferent | 140 W | 180 W |
| Suggested PSUDifferent | 300 W | 450 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin | 2x 6-pin |
| Board NumberDifferent | P2030 SKU 0 | C631, 109-C63257-00A_02, 109-C63257-12_02 |
| HeightDifferent | N/A | 109 mm4.3 inches |
| WidthDifferent | N/A | 36 mm1.4 inches |
Graphics Features
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon R9 270X |
|---|---|---|
| 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
50
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 R9 270X
Compare AMD Radeon R9 270X with other GPUs of similar performance
AMD Radeon R9 270X vs GeForce GTX 960
GeForce GTX 960 Performance119%
GeForce GTX 960 is 19% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 670
GeForce GTX 670 Performance116%
GeForce GTX 670 is 16% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs Radeon HD 5970
Radeon HD 5970 Performance105%
Radeon HD 5970 is 5% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 1630
GeForce GTX 1630 Performance105%
GeForce GTX 1630 is 5% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 1050
GeForce GTX 1050 Performance103%
GeForce GTX 1050 is 3% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 760
GeForce GTX 760 Performance102%
GeForce GTX 760 is 2% faster than AMD Radeon R9 270X
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