GeForce GTX 465 vs Radeon HD 4730

Intro

Compare those specs to the Radeon HD 4730, which comes with GPU core speed of 700 MHz, and 512 MB of GDDR5 RAM set to run at 900 MHz through a 128-bit bus. It also is comprised of 640(128x5) Stream Processors, 32 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4730		140 Watts
GeForce GTX 465		200 Watts
	Difference: 60 Watts (43%)

Memory Bandwidth

The GeForce GTX 465 should theoretically perform quite a bit faster than the Radeon HD 4730 in general. (explain)

GeForce GTX 465		102592 MB/sec
Radeon HD 4730		57600 MB/sec
	Difference: 44992 (78%)

Texel Rate

The GeForce GTX 465 is a bit (more or less 19%) faster with regards to texture filtering than the Radeon HD 4730. (explain)

GeForce GTX 465		26708 Mtexels/sec
Radeon HD 4730		22400 Mtexels/sec
	Difference: 4308 (19%)

Pixel Rate

The GeForce GTX 465 is a lot (about 247%) faster with regards to FSAA than the Radeon HD 4730, and capable of handling higher resolutions more effectively. (explain)

GeForce GTX 465		19424 Mpixels/sec
Radeon HD 4730		5600 Mpixels/sec
	Difference: 13824 (247%)

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 data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated 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 filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.