GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GTX 660
1019%
1019%
AMD Radeon HD 6450
11%
11%
NVIDIA GeForce GTX 660 is approximately 1008% faster
Technical Specifications
| Specification | NVIDIA GeForce GTX 660 | AMD Radeon HD 6450 |
|---|---|---|
| Graphics ProcessorDifferent | GK106 | Caicos |
| CoresDifferent | 960 | 160 |
| TMUsDifferent | 80 | 8 |
| ROPsDifferent | 24 | 4 |
| Memory SizeDifferent | 2 GB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Bus WidthDifferent | 192 bit | 64 bit |
Graphics Processor
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6450 |
|---|---|---|
| GPU NameDifferent | GK106 | Caicos |
| GPU VariantDifferent | GK106-400-A1 | Caicos PRO |
| ArchitectureDifferent | Kepler | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 2,540 million | 370 million |
| DensityDifferent | 11.5M / mm² | 5.5M / mm² |
| Die SizeDifferent | 221 mm² | 67 mm² |
| Chip PackageDifferent | BGA-1425 | FCBGA-631 |
Graphics Card
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6450 |
|---|---|---|
| Release DateDifferent | Sep 6th, 2012 | Apr 7th, 2011 |
| GenerationDifferent | GeForce 600 | Northern Islands(HD 6400) |
| PredecessorDifferent | GeForce 500 | Evergreen |
| SuccessorDifferent | GeForce 700 | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 229 USD | 55 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 77 in our database | 14 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6450 |
|---|---|---|
| Base ClockDifferent | 980 MHz | N/A |
| Boost ClockDifferent | 1032 MHz | N/A |
| Memory ClockDifferent | 1502 MHz6 Gbps effective | 500 MHz1000 Mbps effective |
| GPU ClockDifferent | N/A | 625 MHz |
Memory
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6450 |
|---|---|---|
| Memory SizeDifferent | 2 GB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Memory BusDifferent | 192 bit | 64 bit |
| BandwidthDifferent | 144.2 GB/s | 8.000 GB/s |
Render Config
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6450 |
|---|---|---|
| Shading UnitsDifferent | 960 | 160 |
| TMUsDifferent | 80 | 8 |
| ROPsDifferent | 24 | 4 |
| SMX CountDifferent | 5 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 8 KB (per CU) |
| L2 CacheDifferent | 384 KB | 128 KB |
| Compute UnitsDifferent | N/A | 2 |
Theoretical Performance
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6450 |
|---|---|---|
| Pixel RateDifferent | 20.64 GPixel/s | 2.500 GPixel/s |
| Texture RateDifferent | 82.56 GTexel/s | 5.000 GTexel/s |
| FP32 (float)Different | 1.981 TFLOPS | 200.0 GFLOPS |
| FP64 (double)Different | 82.56 GFLOPS (1:24) | N/A |
Board Design
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6450 |
|---|---|---|
| Slot WidthDifferent | Dual-slot | Single-slot |
| LengthDifferent | 241 mm9.5 inches | 168 mm6.6 inches |
| TDPDifferent | 140 W | 18 W |
| Suggested PSUDifferent | 300 W | 200 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-C26037-00A |
Graphics Features
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 6450 |
|---|---|---|
| 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 6450
Compare AMD Radeon HD 6450 with other GPUs of similar performance
AMD Radeon HD 6450 vs GeForce GT 520
GeForce GT 520 Performance106%
GeForce GT 520 is 6% faster than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 5450
Radeon HD 5450 Performance85%
Radeon HD 5450 is 15% slower than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
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