GeForce GT 440 3GB vs Radeon HD 6870

Intro

Compare all of that to the Radeon HD 6870, which has a core clock speed of 900 MHz and a GDDR5 memory speed of 1050 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It features 1120 SPUs, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon HD 6870		151 Watts
	Difference: 95 Watts (170%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6870 should theoretically be much better than the GeForce GT 440 3GB in general. (explain)

Radeon HD 6870		134400 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 91200 (211%)

Texel Rate

The Radeon HD 6870 should be much (about 254%) faster with regards to texture filtering than the GeForce GT 440 3GB. (explain)

Radeon HD 6870		50400 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 36144 (254%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6870 is superior to the GeForce GT 440 3GB, by far. (explain)

Radeon HD 6870		28800 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 14544 (102%)

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 largest amount of data (measured in MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.