NVIDIA GeForce GTX 660 vs ATI Radeon HD 2900 GT
Comparative analysis of NVIDIA GeForce GTX 660 and ATI Radeon HD 2900 GT videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Graphics Score.
Differences
Reasons to consider the NVIDIA GeForce GTX 660
- Videocard is newer: launch date 4 year(s) 9 month(s) later
- Around 63% higher core clock speed: 980 MHz vs 601 MHz
- 10.9x more texture fill rate: 78.4 billion / sec vs 7.21 GTexel / s
- 4x more pipelines: 960 vs 240
- 6.9x better floating-point performance: 1,981 gflops vs 288.48 gflops
- A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 80 nm
- Around 7% lower typical power consumption: 140 Watt vs 150 Watt
- 8x more maximum memory size: 2 GB vs 256 MB
- 13.7x better performance in PassMark - G3D Mark: 4000 vs 292
- Around 39% better performance in PassMark - G2D Mark: 479 vs 344
- Around 27% better performance in GFXBench 4.0 - T-Rex (Frames): 3365 vs 2648
- Around 27% better performance in GFXBench 4.0 - T-Rex (Fps): 3365 vs 2648
| Specifications (specs) | |
| Launch date | 6 September 2012 vs 6 November 2007 |
| Core clock speed | 980 MHz vs 601 MHz |
| Texture fill rate | 78.4 billion / sec vs 7.21 GTexel / s |
| Pipelines | 960 vs 240 |
| Floating-point performance | 1,981 gflops vs 288.48 gflops |
| Manufacturing process technology | 28 nm vs 80 nm |
| Thermal Design Power (TDP) | 140 Watt vs 150 Watt |
| Maximum memory size | 2 GB vs 256 MB |
| Benchmarks | |
| PassMark - G3D Mark | 4000 vs 292 |
| PassMark - G2D Mark | 479 vs 344 |
| GFXBench 4.0 - T-Rex (Frames) | 3365 vs 2648 |
| GFXBench 4.0 - T-Rex (Fps) | 3365 vs 2648 |
Reasons to consider the ATI Radeon HD 2900 GT
- 266.7x more memory clock speed: 1600 MHz vs 6.0 GB/s
| Memory clock speed | 1600 MHz vs 6.0 GB/s |
Compare benchmarks
GPU 1: NVIDIA GeForce GTX 660
GPU 2: ATI Radeon HD 2900 GT
| PassMark - G3D Mark |
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| PassMark - G2D Mark |
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| GFXBench 4.0 - T-Rex (Frames) |
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| GFXBench 4.0 - T-Rex (Fps) |
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| Name | NVIDIA GeForce GTX 660 | ATI Radeon HD 2900 GT |
|---|---|---|
| PassMark - G3D Mark | 4000 | 292 |
| PassMark - G2D Mark | 479 | 344 |
| Geekbench - OpenCL | 11374 | |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 30.505 | |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 705.293 | |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 3.085 | |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 35.416 | |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 62.69 | |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 3581 | |
| GFXBench 4.0 - Manhattan (Frames) | 3690 | |
| GFXBench 4.0 - T-Rex (Frames) | 3365 | 2648 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 3581 | |
| GFXBench 4.0 - Manhattan (Fps) | 3690 | |
| GFXBench 4.0 - T-Rex (Fps) | 3365 | 2648 |
| 3DMark Fire Strike - Graphics Score | 1307 |
Compare specifications (specs)
| NVIDIA GeForce GTX 660 | ATI Radeon HD 2900 GT | |
|---|---|---|
Essentials |
||
| Architecture | Kepler | TeraScale |
| Code name | GK106 | R600 |
| Launch date | 6 September 2012 | 6 November 2007 |
| Launch price (MSRP) | $229 | |
| Place in performance rating | 774 | 777 |
| Price now | $349.99 | |
| Type | Desktop | Desktop |
| Value for money (0-100) | 14.35 | |
Technical info |
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| Boost clock speed | 1033 MHz | |
| Core clock speed | 980 MHz | 601 MHz |
| CUDA cores | 960 | |
| Floating-point performance | 1,981 gflops | 288.48 gflops |
| Manufacturing process technology | 28 nm | 80 nm |
| Pipelines | 960 | 240 |
| Texture fill rate | 78.4 billion / sec | 7.21 GTexel / s |
| Thermal Design Power (TDP) | 140 Watt | 150 Watt |
| Transistor count | 2,540 million | 720 million |
Video outputs and ports |
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| Audio input for HDMI | Internal | |
| Display Connectors | One Dual Link DVI-I, One Dual Link DVI-D, One HDMI..., 2x DVI, 1x HDMI, 1x DisplayPort | 2x DVI, 1x S-Video |
| G-SYNC support | ||
| HDCP | ||
| HDMI | ||
| Maximum VGA resolution | 2048x1536 | |
| Multi monitor support | ||
Compatibility, dimensions and requirements |
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| Bus support | PCI Express 3.0 | |
| Height | 4.376" (11.1 cm) | |
| Interface | PCIe 3.0 x16 | PCIe 1.0 x16 |
| Length | 9.5" (24.1 cm) | |
| Supplementary power connectors | One 6-pin | 1x 8-pin |
API support |
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| DirectX | 12.0 (11_0) | 10.0 |
| OpenGL | 4.3 | 3.3 |
Memory |
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| Maximum RAM amount | 2 GB | 256 MB |
| Memory bandwidth | 144.2 GB / s | 51.2 GB / s |
| Memory bus width | 192-bit GDDR5 | 256 Bit |
| Memory clock speed | 6.0 GB/s | 1600 MHz |
| Memory type | GDDR5 | GDDR3 |
Technologies |
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| 3D Blu-Ray | ||
| 3D Gaming | ||
| 3D Vision | ||
| Adaptive VSync | ||
| CUDA | ||
| FXAA | ||
| GPU Boost | ||
| SLI | ||
| TXAA | ||
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