GeForce GT 440 1.5GB vs Radeon HD 7970

Intro

Compare those specs to the Radeon HD 7970, which has clock speeds of 925 MHz on the GPU, and 1375 MHz on the 3072 MB of GDDR5 memory. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

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 7970		8225 points
GeForce GT 440 1.5GB		840 points
	Difference: 7385 (879%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 7970		250 Watts
	Difference: 194 Watts (346%)

Memory Bandwidth

Theoretically, the Radeon HD 7970 should be a lot faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon HD 7970		264000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 220800 (511%)

Texel Rate

The Radeon HD 7970 should be quite a bit (approximately 731%) more effective at texture filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 7970		118400 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 104144 (731%)

Pixel Rate

The Radeon HD 7970 will be quite a bit (more or less 108%) more effective at AA than the GeForce GT 440 1.5GB, and also should be able to handle higher screen resolutions more effectively. (explain)

Radeon HD 7970		29600 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 15344 (108%)

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 MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's 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 amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.