GeForce GT 340 1GB vs Radeon HD 3650 512MB

Intro

Compare those specifications to the Radeon HD 3650 512MB, which has a GPU core clock speed of 725 MHz, and 512 MB of GDDR3 memory running at 800 MHz through a 128-bit bus. It also is made up of 120(24x5) Stream Processors, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
Radeon HD 3650 512MB		78 Watts
	Difference: 9 Watts (13%)

Memory Bandwidth

The GeForce GT 340 1GB, in theory, should be a lot faster than the Radeon HD 3650 512MB overall. (explain)

GeForce GT 340 1GB		54400 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 28800 (113%)

Texel Rate

The GeForce GT 340 1GB is much (approximately 203%) more effective at texture filtering than the Radeon HD 3650 512MB. (explain)

GeForce GT 340 1GB		17600 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 11800 (203%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GT 340 1GB is the winner, by a large margin. (explain)

GeForce GT 340 1GB		4400 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 1500 (52%)

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: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.