GeForce GT 240 GDDR5 vs Radeon R9 280X

Intro

Compare all that to the Radeon R9 280X, which has GPU core speed of 850 MHz, and 3072 MB of GDDR5 memory set to run at 1500 MHz through a 384-bit bus. It also features 2048 Stream Processors, 128 TAUs, 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 280X		250 Watts
	Difference: 180 Watts (257%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 280X is 429% quicker than the GeForce GT 240 GDDR5 overall, due to its greater bandwidth. (explain)

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

Texel Rate

The Radeon R9 280X should be a lot (approximately 518%) more effective at AF than the GeForce GT 240 GDDR5. (explain)

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

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 280X is superior to the GeForce GT 240 GDDR5, by a large margin. (explain)

Radeon R9 280X		27200 Mpixels/sec
GeForce GT 240 GDDR5		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 data (counted in megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.