GeForce GT 340 1GB vs Radeon HD 3650 512MB

Intro

Compare those specs to the Radeon HD 3650 512MB, which comes with a core clock speed of 725 MHz and a GDDR3 memory frequency of 800 MHz. It also uses a 128-bit bus, and makes use of a 55 nm design. It is comprised of 120(24x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

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

Theoretically speaking, the GeForce GT 340 1GB should perform much 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 much (more or less 203%) faster with regards to anisotropic 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 will be a lot (more or less 52%) more effective at FSAA than the Radeon HD 3650 512MB, and able to handle higher screen resolutions without slowing down too much. (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 maximum amount of data (measured in megabytes per second) that can be transported over the external memory interface in 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 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.