GeForce GT 240 GDDR5 vs Radeon HD 7750

Intro

Compare those specs to the Radeon HD 7750, which comes with a clock speed of 800 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It features 512 SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
GeForce GT 240 GDDR5		70 Watts
	Difference: 15 Watts (27%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7750 should perform much faster than the GeForce GT 240 GDDR5 in general. (explain)

Radeon HD 7750		72000 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 17600 (32%)

Texel Rate

The Radeon HD 7750 should be much (approximately 45%) better at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 7750		25600 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 8000 (45%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 7750 is a better choice, and very much so. (explain)

Radeon HD 7750		12800 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 8400 (191%)

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: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.