GeForce GT 340 vs Radeon HD 6670 (OEM) 1GB

Intro

The GeForce GT 340 features a clock frequency of 550 MHz and a GDDR5 memory frequency of 850 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It features 96 SPUs, 32 Texture Address Units, and 8 ROPs.

Compare all of that to the Radeon HD 6670 (OEM) 1GB, which has a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 480 Stream Processors, 24 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 GT 340 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 6670 (OEM) 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GT 340	Radeon HD 6670 (OEM) 1GB
Manufacturer	nVidia	ATi
Year	February 2010	February 2011
Code Name	GT215	Turks
Fab Process	40 nm	40 nm
Bus	PCIe x16	PCIe 2.1 x16
Memory	512 MB	1024 MB
Core Speed	550 MHz	800 MHz
Shader Speed	1340 MHz	(N/A) MHz
Memory Speed	850 MHz	1000 MHz
Unified Shaders	96	480
Texture Mapping Units	32	24
Render Output Units	8	8
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	128-bit
DirectX Version	DirectX 10.1	DirectX 11
OpenGL Version	OpenGL 3.3	OpenGL 4.1
Power (Max TDP)	69 watts	63 watts
Shader Model	4.1	5.0
Bandwidth	54400 MB/sec	64000 MB/sec
Texel Rate	17600 Mtexels/sec	19200 Mtexels/sec
Pixel Rate	4400 Mpixels/sec	6400 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. 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 texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core 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 rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.