GeForce GT 240 GDDR5 vs Radeon HD 6870

Intro

Compare all of that to the Radeon HD 6870, which uses a 40 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 memory works at a frequency of 1050 MHz on this card. It features 1120 SPUs as well as 56 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
Radeon HD 6870		151 Watts
	Difference: 81 Watts (116%)

Memory Bandwidth

In theory, the Radeon HD 6870 should be 147% quicker than the GeForce GT 240 GDDR5 in general, because of its greater bandwidth. (explain)

Radeon HD 6870		134400 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 80000 (147%)

Texel Rate

The Radeon HD 6870 will be a lot (more or less 186%) more effective at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 6870		50400 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 32800 (186%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6870 is superior to the GeForce GT 240 GDDR5, by far. (explain)

Radeon HD 6870		28800 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 24400 (555%)

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 maximum amount of data (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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