GeForce GTS 250 512MB vs Radeon HD 6570 (OEM) 2GB

Intro

The GeForce GTS 250 512MB uses a 65/55 nm design. nVidia has set the core speed at 738 MHz. The GDDR3 memory works at a frequency of 1100 MHz on this particular card. It features 128 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

Compare all of that to the Radeon HD 6570 (OEM) 2GB, which features clock speeds of 650 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 480 SPUs as well as 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 GTS 250 512MB 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 GTS 250 512MB	Radeon HD 6570 (OEM) 2GB
Manufacturer	nVidia	ATi
Year	March 3, 2009	February 2011
Code Name	G92a/b	Turks
Fab Process	65/55 nm	40 nm
Bus	PCIe x16 2.0	PCIe 2.1 x16
Memory	512 MB	1024 MB
Core Speed	738 MHz	650 MHz
Shader Speed	1836 MHz	(N/A) MHz
Memory Speed	1100 MHz	1000 MHz
Unified Shaders	128	480
Texture Mapping Units	64	24
Render Output Units	16	8
Bus Type	GDDR3	GDDR5
Bus Width	256-bit	128-bit
DirectX Version	DirectX 10	DirectX 11
OpenGL Version	OpenGL 3.1	OpenGL 4.1
Power (Max TDP)	145 watts	50 watts
Shader Model	4.0	5.0
Bandwidth	70400 MB/sec	64000 MB/sec
Texel Rate	47232 Mtexels/sec	15600 Mtexels/sec
Pixel Rate	11808 Mpixels/sec	5200 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 one second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.