GeForce GT 440 1.5GB vs Radeon HD 4850 2GB

Intro

Compare all of that to the Radeon HD 4850 2GB, which comes with GPU core speed of 625 MHz, and 2048 MB of GDDR4 RAM running at 993 MHz through a 256-bit bus. It also is made up of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 4850 2GB		110 Watts
	Difference: 54 Watts (96%)

Memory Bandwidth

The Radeon HD 4850 2GB should theoretically be quite a bit faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon HD 4850 2GB		63552 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 20352 (47%)

Texel Rate

The Radeon HD 4850 2GB is much (more or less 75%) better at texture filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 4850 2GB		25000 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 10744 (75%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 440 1.5GB is superior to the Radeon HD 4850 2GB, by a large margin. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 4850 2GB		10000 Mpixels/sec
	Difference: 4256 (43%)

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 largest amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. 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.