GeForce GT 240 GDDR5 1GB vs Radeon R9 270X

Intro

Compare those specs to the Radeon R9 270X, which makes use of a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM is set to run at a frequency of 1400 MHz on this specific model. It features 1280 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
Radeon R9 270X		180 Watts
	Difference: 110 Watts (157%)

Memory Bandwidth

Performance-wise, the Radeon R9 270X should theoretically be much superior to the GeForce GT 240 GDDR5 1GB in general. (explain)

Radeon R9 270X		179200 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 124800 (229%)

Texel Rate

The Radeon R9 270X should be much (approximately 355%) faster with regards to AF than the GeForce GT 240 GDDR5 1GB. (explain)

Radeon R9 270X		80000 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 62400 (355%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 270X is a better choice, and very much so. (explain)

Radeon R9 270X		32000 Mpixels/sec
GeForce GT 240 GDDR5 1GB		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 largest amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.