Radeon HD 3850 1GB vs Radeon HD 6750 1GB

Intro

The Radeon HD 3850 1GB has a GPU core clock speed of 668 MHz, and the 1024 MB of GDDR3 RAM is set to run at 828 MHz through a 256-bit bus. It also is made up of 320(64x5) Stream Processors, 16 Texture Address Units, and 16 ROPs.

Compare all of that to the Radeon HD 6750 1GB, which features a core clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 720 SPUs, 36 TAUs, and 16 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.

Radeon HD 3850 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 6750 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	Radeon HD 3850 1GB	Radeon HD 6750 1GB
Manufacturer	ATi	ATi
Year	Nov 19, 2007	January 2011
Code Name	RV670 PRO	Juniper Pro
Fab Process	55 nm	40 nm
Bus	PCIe 2.0 x16/AGP 8x	PCIe x16
Memory	1024 MB	1024 MB
Core Speed	668 MHz	725 MHz
Shader Speed	N/A MHz	(N/A) MHz
Memory Speed	828 MHz	1000 MHz
Unified Shaders	320(64x5)	720
Texture Mapping Units	16	36
Render Output Units	16	16
Bus Type	GDDR3	GDDR5
Bus Width	256-bit	128-bit
DirectX Version	DirectX 10.1	DirectX 11
OpenGL Version	OpenGL 3.0	OpenGL 4.1
Power (Max TDP)	75 watts	86 watts
Shader Model	4.1	5.0
Bandwidth	52992 MB/sec	64000 MB/sec
Texel Rate	10688 Mtexels/sec	26100 Mtexels/sec
Pixel Rate	10688 Mpixels/sec	11600 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.