GeForce GT 340 vs Radeon HD 6570 (OEM) 2GB

Intro

Compare those specs to the Radeon HD 6570 (OEM) 2GB, which uses a 40 nm design. AMD has set the core speed at 650 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this model. It features 480 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB		50 Watts
GeForce GT 340		69 Watts
	Difference: 19 Watts (38%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6570 (OEM) 2GB should in theory be just a bit superior to the GeForce GT 340 overall. (explain)

Radeon HD 6570 (OEM) 2GB		64000 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 9600 (18%)

Texel Rate

The GeForce GT 340 should be a little bit (more or less 13%) more effective at texture filtering than the Radeon HD 6570 (OEM) 2GB. (explain)

GeForce GT 340		17600 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 2000 (13%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6570 (OEM) 2GB is the winner, not by a very large margin though. (explain)

Radeon HD 6570 (OEM) 2GB		5200 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 800 (18%)

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 max amount of data (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied 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 better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many 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.