GeForce GT 240 GDDR5 vs Radeon R9 270X

Intro

Compare all that to the Radeon R9 270X, which comes with a core clock speed of 1000 MHz and a GDDR5 memory frequency of 1400 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
Radeon R9 270X		180 Watts
	Difference: 110 Watts (157%)

Memory Bandwidth

The Radeon R9 270X should in theory be quite a bit faster than the GeForce GT 240 GDDR5 overall. (explain)

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

Texel Rate

The Radeon R9 270X is a lot (approximately 355%) faster with regards to AF than the GeForce GT 240 GDDR5. (explain)

Radeon R9 270X		80000 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 62400 (355%)

Pixel Rate

The Radeon R9 270X is a lot (about 627%) faster with regards to AA than the GeForce GT 240 GDDR5, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 270X		32000 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 27600 (627%)

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 maximum amount of information (measured in megabytes per second) that can be moved 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 the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.