GeForce GT 240 GDDR5 vs Radeon R7 250

Intro

Compare all that to the Radeon R7 250, which features a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1150 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It features 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GT 240 GDDR5		70 Watts
	Difference: 5 Watts (8%)

Memory Bandwidth

Performance-wise, the Radeon R7 250 should theoretically be much superior to the GeForce GT 240 GDDR5 in general. (explain)

Radeon R7 250		73600 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 19200 (35%)

Texel Rate

The Radeon R7 250 will be quite a bit (about 36%) better at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

Radeon R7 250		24000 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 6400 (36%)

Pixel Rate

The Radeon R7 250 is much (more or less 82%) better at AA than the GeForce GT 240 GDDR5, and capable of handling higher screen resolutions while still performing well. (explain)

Radeon R7 250		8000 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 3600 (82%)

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 (measured in megabytes per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card 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 amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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 of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.