GeForce GTS 450 vs GeForce GTX 260

Intro

The GeForce GTS 450 uses a 40 nm design. nVidia has set the core frequency at 783 MHz. The GDDR5 RAM is set to run at a speed of 902 MHz on this particular model. It features 192 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Compare those specs to the GeForce GTX 260, which comes with a clock speed of 576 MHz and a GDDR3 memory speed of 999 MHz. It also features a 448-bit memory bus, and makes use of a 65 nm design. It features 192 SPUs, 64 TAUs, and 28 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 450 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

GeForce GTX 260 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTS 450	GeForce GTX 260
Manufacturer	nVidia	nVidia
Year	September 2010	June 16, 2008
Code Name	GF106	G200
Fab Process	40 nm	65 nm
Bus	PCIe x16	PCIe x16 2.0
Memory	512 MB	896 MB
Core Speed	783 MHz	576 MHz
Shader Speed	1566 MHz	1242 MHz
Memory Speed	902 MHz (3608 MHz effective)	999 MHz (1998 MHz effective)
Unified Shaders	192	192
Texture Mapping Units	32	64
Render Output Units	16	28
Bus Type	GDDR5	GDDR3
Bus Width	128-bit	448-bit
DirectX Version	DirectX 11	DirectX 10
OpenGL Version	OpenGL 4.1	OpenGL 3.1
Power (Max TDP)	106 watts	182 watts
Shader Model	5.0	4.0
Bandwidth	57728 MB/sec	111888 MB/sec
Texel Rate	25056 Mtexels/sec	36864 Mtexels/sec
Pixel Rate	12528 Mpixels/sec	16128 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.