GeForce GTX 570 vs GeForce GTX 660 Ti

Intro

The GeForce GTX 570 features a core clock frequency of 732 MHz and a GDDR5 memory speed of 950 MHz. It also uses a 320-bit bus, and makes use of a 40 nm design. It is made up of 480 SPUs, 60 TAUs, and 40 Raster Operation Units.

Compare all of that to the GeForce GTX 660 Ti, which has GPU clock speed of 915 MHz, and 2048 MB of GDDR5 RAM running at 1500 MHz through a 192-bit bus. It also is made up of 1344 SPUs, 112 Texture Address Units, and 24 Raster Operation Units.

Price Comparison

GeForce GTX 570 Amazon.com

GeForce GTX 660 Ti Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Model	GeForce GTX 570	GeForce GTX 660 Ti
Manufacturer	nVidia	nVidia
Year	December 2010	August 2012
Code Name	GF110	GK104
Fab Process	40 nm	28 nm
Bus	PCIe x16	PCIe 3.0 x16
Memory	1280 MB	2048 MB
Core Speed	732 MHz	915 MHz
Shader Speed	1464 MHz	915 MHz
Memory Speed	950 MHz (3800 MHz effective)	1500 MHz (6000 MHz effective)
Unified Shaders	480	1344
Texture Mapping Units	60	112
Render Output Units	40	24
Bus Type	GDDR5	GDDR5
Bus Width	320-bit	192-bit
DirectX Version	DirectX 11	DirectX 11.0
OpenGL Version	OpenGL 4.1	OpenGL 4.3
Power (Max TDP)	219 watts	150 watts
Shader Model	5.0	5.0
Bandwidth	152000 MB/sec	144000 MB/sec
Texel Rate	43920 Mtexels/sec	102480 Mtexels/sec
Pixel Rate	29280 Mpixels/sec	21960 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.