GeForce GT 440 3GB vs Radeon HD 5550

Intro

Compare those specs to the Radeon HD 5550, which features a clock speed of 550 MHz and a DDR2 memory frequency of 400 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It is comprised of 320(64x5) SPUs, 16 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GT 440 3GB will be 238% faster than the Radeon HD 5550 in general, due to its greater bandwidth. (explain)

GeForce GT 440 3GB		43200 MB/sec
Radeon HD 5550		12800 MB/sec
	Difference: 30400 (238%)

Texel Rate

The GeForce GT 440 3GB will be a lot (more or less 62%) better at anisotropic filtering than the Radeon HD 5550. (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
Radeon HD 5550		8800 Mtexels/sec
	Difference: 5456 (62%)

Pixel Rate

The GeForce GT 440 3GB is a lot (approximately 224%) faster with regards to full screen anti-aliasing than the Radeon HD 5550, and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 5550		4400 Mpixels/sec
	Difference: 9856 (224%)

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 information (measured in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.