GeForce GTS 450 1GB vs Radeon HD 5670

Intro

The GeForce GTS 450 1GB makes use of a 40 nm design. nVidia has set the core speed at 783 MHz. The GDDR5 memory is set to run at a frequency of 902 MHz on this specific card. It features 192 SPUs along with 32 Texture Address Units and 16 ROPs.

Compare that to the Radeon HD 5670, which comes with core speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 400(80x5) SPUs as well as 20 Texture Address Units 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 450 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 5670 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTS 450 1GB	Radeon HD 5670
Manufacturer	nVidia	ATi
Year	September 2010	January 14, 2010
Code Name	GF106	Redwood XT
Fab Process	40 nm	40 nm
Bus	PCIe x16	PCIe 2.1 x16
Memory	1024 MB	1024 MB
Core Speed	783 MHz	775 MHz
Shader Speed	1566 MHz	(N/A) MHz
Memory Speed	902 MHz	1000 MHz
Unified Shaders	192	400(80x5)
Texture Mapping Units	32	20
Render Output Units	16	8
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	128-bit
DirectX Version	DirectX 11	DirectX 11
OpenGL Version	OpenGL 4.1	OpenGL 3.2
Power (Max TDP)	106 watts	61 watts
Shader Model	5.0	5.0
Bandwidth	57728 MB/sec	64000 MB/sec
Texel Rate	25056 Mtexels/sec	15500 Mtexels/sec
Pixel Rate	12528 Mpixels/sec	6200 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 number of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.