GeForce GT 240 GDDR5 vs Radeon R9 270

Intro

Compare those specs to the Radeon R9 270, which makes use of a 28 nm design. AMD has set the core speed at 900 MHz. The GDDR5 memory is set to run at a speed of 1400 MHz on this specific card. It features 1280 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
Radeon R9 270		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

Theoretically, the Radeon R9 270 should be much faster than the GeForce GT 240 GDDR5 overall. (explain)

Radeon R9 270		179200 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 124800 (229%)

Texel Rate

The Radeon R9 270 should be much (about 309%) better at texture filtering than the GeForce GT 240 GDDR5. (explain)

Radeon R9 270		72000 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 54400 (309%)

Pixel Rate

The Radeon R9 270 is much (about 555%) faster with regards to AA than the GeForce GT 240 GDDR5, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 270		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 largest amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.