GeForce GTS 250 512MB vs Radeon R7 240

Intro

Compare that to the Radeon R7 240, which comes with GPU clock speed of 730 MHz, and 2048 MB of DDR3 memory set to run at 900 MHz through a 128-bit bus. It also is made up of 320 SPUs, 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 250 512MB		145 Watts
	Difference: 115 Watts (383%)

Memory Bandwidth

The GeForce GTS 250 512MB should theoretically be much faster than the Radeon R7 240 overall. (explain)

GeForce GTS 250 512MB		70400 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 41600 (144%)

Texel Rate

The GeForce GTS 250 512MB is a lot (more or less 224%) faster with regards to texture filtering than the Radeon R7 240. (explain)

GeForce GTS 250 512MB		47232 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 32632 (224%)

Pixel Rate

The GeForce GTS 250 512MB will be quite a bit (about 102%) better at FSAA than the Radeon R7 240, and should be able to handle higher resolutions while still performing well. (explain)

GeForce GTS 250 512MB		11808 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 5968 (102%)

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 max amount of information (counted in MB per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.