GeForce GT 320 vs Radeon HD 3650 256MB

Intro

Compare those specs to the Radeon HD 3650 256MB, which features a core clock speed of 725 MHz and a DDR2 memory frequency of 800 MHz. It also uses a 128-bit bus, and makes use of a 55 nm design. It is made up of 120(24x5) SPUs, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon HD 3650 256MB		78 Watts
	Difference: 35 Watts (81%)

Memory Bandwidth

Performance-wise, the Radeon HD 3650 256MB should in theory be just a bit superior to the GeForce GT 320 overall. (explain)

Radeon HD 3650 256MB		25600 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 320 (1%)

Texel Rate

The GeForce GT 320 will be a lot (approximately 123%) more effective at texture filtering than the Radeon HD 3650 256MB. (explain)

GeForce GT 320		12960 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 7160 (123%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GT 320 is superior to the Radeon HD 3650 256MB, by a large margin. (explain)

GeForce GT 320		4320 Mpixels/sec
Radeon HD 3650 256MB		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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.