GeForce GT 440 1.5GB vs Radeon HD 6850

Intro

Compare those specs to the Radeon HD 6850, which features a clock speed of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It features 960 SPUs, 48 Texture Address Units, and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 6850		2395 points
GeForce GT 440 1.5GB		840 points
	Difference: 1555 (185%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 6850		127 Watts
	Difference: 71 Watts (127%)

Memory Bandwidth

The Radeon HD 6850, in theory, should perform a lot faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon HD 6850		128000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 84800 (196%)

Texel Rate

The Radeon HD 6850 should be much (approximately 161%) faster with regards to anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 6850		37200 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 22944 (161%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6850 is superior to the GeForce GT 440 1.5GB, by a large margin. (explain)

Radeon HD 6850		24800 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 10544 (74%)

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 information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.