GeForce 9800 GT 1GB vs Radeon HD 5670

Intro

The GeForce 9800 GT 1GB features a core clock frequency of 600 MHz and a GDDR3 memory speed of 900 MHz. It also features a 256-bit memory bus, and uses a 65/55 nm design. It is comprised of 112 SPUs, 56 Texture Address Units, and 16 ROPs.

Compare those specs to the Radeon HD 5670, which comes with a core clock speed of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It is comprised of 400(80x5) SPUs, 20 TAUs, and 8 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 9800 GT 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 9800 GT 1GB	Radeon HD 5670
Manufacturer	nVidia	ATi
Year	July 2008	January 14, 2010
Code Name	G92a/b	Redwood XT
Fab Process	65/55 nm	40 nm
Bus	PCIe x16 2.0	PCIe 2.1 x16
Memory	1024 MB	1024 MB
Core Speed	600 MHz	775 MHz
Shader Speed	1500 MHz	(N/A) MHz
Memory Speed	900 MHz	1000 MHz
Unified Shaders	112	400(80x5)
Texture Mapping Units	56	20
Render Output Units	16	8
Bus Type	GDDR3	GDDR5
Bus Width	256-bit	128-bit
DirectX Version	DirectX 10	DirectX 11
OpenGL Version	OpenGL 3.0	OpenGL 3.2
Power (Max TDP)	105 watts	61 watts
Shader Model	4.0	5.0
Bandwidth	57600 MB/sec	64000 MB/sec
Texel Rate	33600 Mtexels/sec	15500 Mtexels/sec
Pixel Rate	9600 Mpixels/sec	6200 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.