GeForce GTS 450 1GB vs Radeon HD 6670 (OEM)

Intro

The GeForce GTS 450 1GB features a core clock speed of 783 MHz and a GDDR5 memory frequency of 902 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It is made up of 192 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Compare those specs to the Radeon HD 6670 (OEM), which comes with a core clock frequency of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It is comprised of 480 SPUs, 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 450 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 6670 (OEM) Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTS 450 1GB	Radeon HD 6670 (OEM)
Manufacturer	nVidia	ATi
Year	September 2010	February 2011
Code Name	GF106	Turks
Fab Process	40 nm	40 nm
Bus	PCIe x16	PCIe 2.1 x16
Memory	1024 MB	512 MB
Core Speed	783 MHz	800 MHz
Shader Speed	1566 MHz	(N/A) MHz
Memory Speed	902 MHz	1000 MHz
Unified Shaders	192	480
Texture Mapping Units	32	24
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 4.1
Power (Max TDP)	106 watts	63 watts
Shader Model	5.0	5.0
Bandwidth	57728 MB/sec	64000 MB/sec
Texel Rate	25056 Mtexels/sec	19200 Mtexels/sec
Pixel Rate	12528 Mpixels/sec	6400 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. 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 also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.