GeForce GT 240 GDDR5 vs Radeon HD 7750

Intro

Compare all that to the Radeon HD 7750, which makes use of a 28 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM works at a frequency of 1125 MHz on this model. It features 512 SPUs along with 32 TAUs and 16 ROPs.

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

The Radeon HD 7750 should in theory perform quite a bit 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 will be quite a bit (more or less 45%) more effective 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

The Radeon HD 7750 will be quite a bit (about 191%) faster with regards to full screen anti-aliasing than the GeForce GT 240 GDDR5, and also should be able to handle higher screen resolutions better. (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 max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, 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 the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.