GeForce GT 320 vs Radeon HD 3650 512MB

Intro

Compare all that to the Radeon HD 3650 512MB, which features a clock frequency of 725 MHz and a GDDR3 memory frequency of 800 MHz. It also uses a 128-bit memory bus, and uses a 55 nm design. It features 120(24x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon HD 3650 512MB		78 Watts
	Difference: 35 Watts (81%)

Memory Bandwidth

Performance-wise, the Radeon HD 3650 512MB should theoretically be a small bit better than the GeForce GT 320 in general. (explain)

Radeon HD 3650 512MB		25600 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 320 (1%)

Texel Rate

The GeForce GT 320 is a lot (about 123%) faster with regards to AF than the Radeon HD 3650 512MB. (explain)

GeForce GT 320		12960 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 7160 (123%)

Pixel Rate

The GeForce GT 320 will be quite a bit (approximately 49%) better at full screen anti-aliasing than the Radeon HD 3650 512MB, and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GT 320		4320 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 1420 (49%)

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 MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher 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 chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.