GeForce GT 240 GDDR5 1GB vs Radeon R9 280X

Intro

Compare those specs to the Radeon R9 280X, which comes with GPU clock speed of 850 MHz, and 3072 MB of GDDR5 memory set to run at 1500 MHz through a 384-bit bus. It also is comprised of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
Radeon R9 280X		250 Watts
	Difference: 180 Watts (257%)

Memory Bandwidth

In theory, the Radeon R9 280X is 429% faster than the GeForce GT 240 GDDR5 1GB in general, due to its greater bandwidth. (explain)

Radeon R9 280X		288000 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 233600 (429%)

Texel Rate

The Radeon R9 280X is a lot (about 518%) faster with regards to AF than the GeForce GT 240 GDDR5 1GB. (explain)

Radeon R9 280X		108800 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 91200 (518%)

Pixel Rate

The Radeon R9 280X is much (approximately 518%) better at anti-aliasing than the GeForce GT 240 GDDR5 1GB, and able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 280X		27200 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 22800 (518%)

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 (in units of MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.