GeForce GTX 285 1GB vs GeForce GTX 660 Ti

Intro

The GeForce GTX 285 1GB comes with a GPU clock speed of 648 MHz, and the 1024 MB of GDDR3 RAM is set to run at 1242 MHz through a 512-bit bus. It also is comprised of 240 Stream Processors, 80 TAUs, and 32 Raster Operation Units.

Compare all of that to the GeForce GTX 660 Ti, which has a clock speed of 915 MHz and a GDDR5 memory frequency of 1500 MHz. It also uses a 192-bit bus, and uses a 28 nm design. It is comprised of 1344 SPUs, 112 Texture Address Units, and 24 Raster Operation Units.

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 285 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

GeForce GTX 660 Ti Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 285 1GB	GeForce GTX 660 Ti
Manufacturer	nVidia	nVidia
Year	January 15, 2009	August 2012
Code Name	G200b	GK104
Fab Process	55 nm	28 nm
Bus	PCIe x16 2.0	PCIe 3.0 x16
Memory	1024 MB	2048 MB
Core Speed	648 MHz	915 MHz
Shader Speed	1476 MHz	915 MHz
Memory Speed	1242 MHz (2484 MHz effective)	1500 MHz (6000 MHz effective)
Unified Shaders	240	1344
Texture Mapping Units	80	112
Render Output Units	32	24
Bus Type	GDDR3	GDDR5
Bus Width	512-bit	192-bit
DirectX Version	DirectX 10	DirectX 11.1
OpenGL Version	OpenGL 3.1	OpenGL 4.3
Power (Max TDP)	204 watts	150 watts
Shader Model	4.0	5.0
Bandwidth	158976 MB/sec	144000 MB/sec
Texel Rate	51840 Mtexels/sec	102480 Mtexels/sec
Pixel Rate	20736 Mpixels/sec	21960 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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