GeForce GT 440 3GB vs Radeon HD 4750

Intro

Compare those specifications to the Radeon HD 4750, which comes with GPU clock speed of 730 MHz, and 512 MB of GDDR5 memory set to run at 800 MHz through a 128-bit bus. It also is made up of 640(128x5) Stream Processors, 32 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 4750		75 Watts
	Difference: 19 Watts (34%)

Memory Bandwidth

In theory, the Radeon HD 4750 will be 19% faster than the GeForce GT 440 3GB overall, because of its higher bandwidth. (explain)

Radeon HD 4750		51200 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 8000 (19%)

Texel Rate

The Radeon HD 4750 should be a lot (approximately 64%) faster with regards to texture filtering than the GeForce GT 440 3GB. (explain)

Radeon HD 4750		23360 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 9104 (64%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GT 440 3GB is superior to the Radeon HD 4750, by far. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 4750		11680 Mpixels/sec
	Difference: 2576 (22%)

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 (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics 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 the video card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock 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 also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.