GeForce GTX 275 vs GeForce GTX 470

Intro

The GeForce GTX 275 makes use of a 55 nm design. nVidia has clocked the core frequency at 633 MHz. The GDDR3 memory runs at a frequency of 1134 MHz on this particular model. It features 240 SPUs along with 80 TAUs and 28 ROPs.

Compare that to the GeForce GTX 470, which comes with core clock speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 memory. It features 448 SPUs as well as 56 TAUs and 40 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 275 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

GeForce GTX 470 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 275	GeForce GTX 470
Manufacturer	nVidia	nVidia
Year	April 9, 2009	March 2010
Code Name	G200b	GF100
Fab Process	55 nm	40 nm
Bus	PCIe x16 2.0	PCIe x16
Memory	896 MB	1280 MB
Core Speed	633 MHz	607 MHz
Shader Speed	1404 MHz	1215 MHz
Memory Speed	1134 MHz	837 MHz
Unified Shaders	240	448
Texture Mapping Units	80	56
Render Output Units	28	40
Bus Type	GDDR3	GDDR5
Bus Width	448-bit	320-bit
DirectX Version	DirectX 10	DirectX 11
OpenGL Version	OpenGL 3.1	OpenGL 4.1
Power (Max TDP)	219 watts	215 watts
Shader Model	4.0	5.0
Bandwidth	127008 MB/sec	133920 MB/sec
Texel Rate	50640 Mtexels/sec	33992 Mtexels/sec
Pixel Rate	17724 Mpixels/sec	24280 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.