GeForce GTX 465 vs Radeon HD 4750

Intro

Compare all of that to the Radeon HD 4750, which comes with GPU clock speed of 730 MHz, and 512 MB of GDDR5 memory set to run at 800 MHz through a 128-bit bus. It also features 640(128x5) Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4750		75 Watts
GeForce GTX 465		200 Watts
	Difference: 125 Watts (167%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 465 will be 100% quicker than the Radeon HD 4750 in general, because of its greater bandwidth. (explain)

GeForce GTX 465		102592 MB/sec
Radeon HD 4750		51200 MB/sec
	Difference: 51392 (100%)

Texel Rate

The GeForce GTX 465 is just a bit (about 14%) faster with regards to AF than the Radeon HD 4750. (explain)

GeForce GTX 465		26708 Mtexels/sec
Radeon HD 4750		23360 Mtexels/sec
	Difference: 3348 (14%)

Pixel Rate

The GeForce GTX 465 is much (about 66%) faster with regards to FSAA than the Radeon HD 4750, and also should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 465		19424 Mpixels/sec
Radeon HD 4750		11680 Mpixels/sec
	Difference: 7744 (66%)

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 megabytes per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.