GeForce GT 440 3GB vs Radeon HD 3650 512MB

Intro

Compare those specifications to the Radeon HD 3650 512MB, which uses a 55 nm design. AMD has clocked the core speed at 725 MHz. The GDDR3 RAM runs at a frequency of 800 MHz on this particular card. It features 120(24x5) SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 3650 512MB		78 Watts
	Difference: 22 Watts (39%)

Memory Bandwidth

In theory, the GeForce GT 440 3GB will be 69% quicker than the Radeon HD 3650 512MB in general, due to its higher bandwidth. (explain)

GeForce GT 440 3GB		43200 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 17600 (69%)

Texel Rate

The GeForce GT 440 3GB should be much (approximately 146%) faster with regards to AF than the Radeon HD 3650 512MB. (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 8456 (146%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 440 3GB is superior to the Radeon HD 3650 512MB, and very much so. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 11356 (392%)

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

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 most pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.