GeForce GT 340 1GB vs Radeon HD 3650 512MB

Intro

Compare all that to the Radeon HD 3650 512MB, which comes with core clock speeds of 725 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 120(24x5) SPUs along with 8 Texture Address Units 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 should in theory be quite a bit 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 should be quite a bit (more or less 203%) better 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

The GeForce GT 340 1GB is quite a bit (more or less 52%) more effective at anti-aliasing than the Radeon HD 3650 512MB, and will be able to handle higher resolutions while still performing well. (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: Bandwidth is the max amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 applied per second. This number 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.