GeForce GTX 570 vs Radeon HD 3650 512MB

Intro

Compare those specs to the Radeon HD 3650 512MB, which comes with core 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 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 512MB		78 Watts
GeForce GTX 570		219 Watts
	Difference: 141 Watts (181%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 should perform a lot faster than the Radeon HD 3650 512MB in general. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 126400 (494%)

Texel Rate

The GeForce GTX 570 should be a lot (about 657%) faster with regards to anisotropic filtering than the Radeon HD 3650 512MB. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 38120 (657%)

Pixel Rate

The GeForce GTX 570 should be a lot (about 910%) better at full screen anti-aliasing than the Radeon HD 3650 512MB, and will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 26380 (910%)

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 information (in units of megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.