GeForce GTS 150 vs Radeon R7 240

Intro

Compare all of that to the Radeon R7 240, which makes use of a 28 nm design. AMD has set the core frequency at 730 MHz. The DDR3 memory runs at a frequency of 900 MHz on this model. It features 320 SPUs as well as 20 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce GTS 150		141 Watts
	Difference: 111 Watts (370%)

Memory Bandwidth

The GeForce GTS 150, in theory, should perform a bit faster than the Radeon R7 240 overall. (explain)

GeForce GTS 150		32000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The GeForce GTS 150 should be quite a bit (approximately 224%) more effective at AF than the Radeon R7 240. (explain)

GeForce GTS 150		47360 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 32760 (224%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTS 150 is a better choice, by a large margin. (explain)

GeForce GTS 150		11840 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 6000 (103%)

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 (measured in MB per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high 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 texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.