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GeForce GTX 660 Ti vs Radeon HD 7870
Intro
The GeForce GTX 660 Ti features core speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1344 SPUs as well as 112 TAUs and 24 Rasterization Operator Units.Compare all of that to the Radeon HD 7870, which has a core clock speed of 1000 MHz and a GDDR5 memory frequency of 1200 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 660 Ti |
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150 Watts |
| Radeon HD 7870 |
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175 Watts |
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Memory Bandwidth
The Radeon HD 7870 should theoretically be just a bit faster than the GeForce GTX 660 Ti in general. (explain)
| Radeon HD 7870 |
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153600 MB/sec |
| GeForce GTX 660 Ti |
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144000 MB/sec |
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Texel Rate
The GeForce GTX 660 Ti is quite a bit (more or less 28%) faster with regards to texture filtering than the Radeon HD 7870. (explain)| GeForce GTX 660 Ti |
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102480 Mtexels/sec |
| Radeon HD 7870 |
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80000 Mtexels/sec |
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Pixel Rate
If running with a high resolution is important to you, then the Radeon HD 7870 is the winner, by far. (explain)| Radeon HD 7870 |
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32000 Mpixels/sec |
| GeForce GTX 660 Ti |
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21960 Mpixels/sec |
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Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Price Comparison
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce GTX 660 TiAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 7870Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce GTX 660 Ti | Radeon HD 7870 |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | August 2012 | March 2012 |
| Code Name | GK104 | Pitcairn XT |
| Fab Process | 28 nm | 28 nm |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 915 MHz | 1000 MHz |
| Shader Speed | 915 MHz | (N/A) MHz |
| Memory Speed | 1500 MHz (6000 MHz effective) | 1200 MHz (4800 MHz effective) |
| Unified Shaders | 1344 | 1280 |
| Texture Mapping Units | 112 | 80 |
| Render Output Units | 24 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 192-bit | 256-bit |
| DirectX Version | DirectX 11.1 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.3 | OpenGL 4.2 |
| Power (Max TDP) | 150 watts | 175 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 144000 MB/sec | 153600 MB/sec |
| Texel Rate | 102480 Mtexels/sec | 80000 Mtexels/sec |
| Pixel Rate | 21960 Mpixels/sec | 32000 Mpixels/sec |
Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
Comments
4 Responses to “GeForce GTX 660 Ti vs Radeon HD 7870”[...] load power consumption... Now for gtx 660 ti i'd recommend leaving that too, why? Take a look GeForce GTX 660 Ti vs Radeon HD 7870 – Performance Comparison Benchmarks @ Hardware Compare GeForce GTX 660 Ti vs Radeon HD 7850 – Performance Comparison Benchmarks @ Hardware Compare [...]
NICE ATI....for 3D,Fast perform,and Gamer.
mang saya mau beli kompor 1 kintal
Ati beats nVidia alot....
in performance and price