GeForce GT 450 (OEM) vs GeForce GTX 550 Ti

Intro

The GeForce GT 450 (OEM) comes with a GPU core clock speed of 790 MHz, and the 1536 MB of GDDR5 memory is set to run at 1000 MHz through a 192-bit bus. It also is comprised of 144 Stream Processors, 24 Texture Address Units, and 24 ROPs.

Compare those specifications to the GeForce GTX 550 Ti, which has a clock frequency of 900 MHz and a GDDR5 memory frequency of 1026 MHz. It also features a 192-bit bus, and makes use of a 40 nm design. It is comprised of 192 SPUs, 32 TAUs, 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 GT 450 (OEM) Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

GeForce GTX 550 Ti Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GT 450 (OEM)	GeForce GTX 550 Ti
Manufacturer	nVidia	nVidia
Year	October 2010	March 2011
Code Name	GF106	GF116
Fab Process	40 nm	40 nm
Bus	PCIe x16	PCIe 2.1 x16
Memory	1536 MB	1024 MB
Core Speed	790 MHz	900 MHz
Shader Speed	1580 MHz	1800 MHz
Memory Speed	1000 MHz	1026 MHz
Unified Shaders	144	192
Texture Mapping Units	24	32
Render Output Units	24	24
Bus Type	GDDR5	GDDR5
Bus Width	192-bit	192-bit
DirectX Version	DirectX 11	DirectX 11
OpenGL Version	OpenGL 4.1	OpenGL 4.1
Power (Max TDP)	106 watts	116 watts
Shader Model	5.0	5.0
Bandwidth	96000 MB/sec	98496 MB/sec
Texel Rate	18960 Mtexels/sec	28800 Mtexels/sec
Pixel Rate	18960 Mpixels/sec	21600 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, 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 figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, 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 the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock 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 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 ability to get to the max fill rate.