GeForce GTX 660 Ti vs Radeon HD 6570 (OEM) 2GB

Intro

The GeForce GTX 660 Ti has a core 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.

Compare all of that to the Radeon HD 6570 (OEM) 2GB, which makes use of a 40 nm design. ATi has clocked the core speed at 650 MHz. The GDDR5 memory works at a speed of 1000 MHz on this particular card. It features 480 SPUs along with 24 TAUs and 8 ROPs.

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

Radeon HD 6570 (OEM) 2GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 660 Ti	Radeon HD 6570 (OEM) 2GB
Manufacturer	nVidia	ATi
Year	August 2012	February 2011
Code Name	GK104	Turks
Fab Process	28 nm	40 nm
Bus	PCIe 3.0 x16	PCIe 2.1 x16
Memory	2048 MB	1024 MB
Core Speed	915 MHz	650 MHz
Shader Speed	915 MHz	(N/A) MHz
Memory Speed	1500 MHz (6000 MHz effective)	1000 MHz (4000 MHz effective)
Unified Shaders	1344	480
Texture Mapping Units	112	24
Render Output Units	24	8
Bus Type	GDDR5	GDDR5
Bus Width	192-bit	128-bit
DirectX Version	DirectX 11.1	DirectX 11
OpenGL Version	OpenGL 4.3	OpenGL 4.1
Power (Max TDP)	150 watts	50 watts
Shader Model	5.0	5.0
Bandwidth	144000 MB/sec	64000 MB/sec
Texel Rate	102480 Mtexels/sec	15600 Mtexels/sec
Pixel Rate	21960 Mpixels/sec	5200 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.