GeForce GTX 285 1GB vs Radeon R7 240

Intro

Compare those specs to the Radeon R7 240, which features core clock speeds of 730 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 memory. It features 320 SPUs as well as 20 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 174 Watts (580%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 1GB should theoretically be a lot superior to the Radeon R7 240 overall. (explain)

GeForce GTX 285 1GB		158976 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 130176 (452%)

Texel Rate

The GeForce GTX 285 1GB is much (more or less 255%) more effective at texture filtering than the Radeon R7 240. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 37240 (255%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 285 1GB is the winner, by a large margin. (explain)

GeForce GTX 285 1GB		20736 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 14896 (255%)

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 maximum amount of data (in units of MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.