GeForce GT 340 vs Radeon HD 7850

Intro

Compare all of that to the Radeon HD 7850, which features a GPU core clock speed of 860 MHz, and 2048 MB of GDDR5 memory set to run at 1200 MHz through a 256-bit bus. It also features 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
Radeon HD 7850		130 Watts
	Difference: 61 Watts (88%)

Memory Bandwidth

In theory, the Radeon HD 7850 should be much faster than the GeForce GT 340 in general. (explain)

Radeon HD 7850		153600 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 99200 (182%)

Texel Rate

The Radeon HD 7850 should be a lot (more or less 213%) faster with regards to AF than the GeForce GT 340. (explain)

Radeon HD 7850		55040 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 37440 (213%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 7850 is superior to the GeForce GT 340, by far. (explain)

Radeon HD 7850		27520 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 23120 (525%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be moved 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 RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at 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 record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.