GeForce GTX 465 vs Radeon HD 6850

Intro

The GeForce GTX 465 comes with a core clock frequency of 607 MHz and a GDDR5 memory speed of 802 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It is made up of 352 SPUs, 44 TAUs, and 32 ROPs.

Compare that to the Radeon HD 6850, which has GPU clock speed of 775 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also is comprised of 960 Stream Processors, 48 Texture Address Units, and 32 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 GTX 465 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 6850 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 465	Radeon HD 6850
Manufacturer	nVidia	ATi
Year	May 2010	October 2010
Code Name	GF100	Barts Pro
Fab Process	40 nm	40 nm
Bus	PCIe x16	PCIe x16
Memory	1024 MB	1024 MB
Core Speed	607 MHz	775 MHz
Shader Speed	1215 MHz	(N/A) MHz
Memory Speed	802 MHz	1000 MHz
Unified Shaders	352	960
Texture Mapping Units	44	48
Render Output Units	32	32
Bus Type	GDDR5	GDDR5
Bus Width	256-bit	256-bit
DirectX Version	DirectX 11	DirectX 11
OpenGL Version	OpenGL 4.1	OpenGL 4.1
Power (Max TDP)	200 watts	127 watts
Shader Model	5.0	5.0
Bandwidth	102592 MB/sec	128000 MB/sec
Texel Rate	26708 Mtexels/sec	37200 Mtexels/sec
Pixel Rate	19424 Mpixels/sec	24800 Mpixels/sec

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

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