GeForce GTX 460 (OEM) vs Radeon HD 4650 1GB

Intro

Compare that to the Radeon HD 4650 1GB, which comes with a GPU core clock speed of 600 MHz, and 1024 MB of GDDR3 memory running at 700 MHz through a 128-bit bus. It also is made up of 320(64x5) SPUs, 32 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4650 1GB		55 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 95 Watts (173%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 (OEM) should be much faster than the Radeon HD 4650 1GB overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon HD 4650 1GB		22400 MB/sec
	Difference: 86400 (386%)

Texel Rate

The GeForce GTX 460 (OEM) is a lot (more or less 90%) more effective at texture filtering than the Radeon HD 4650 1GB. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
Radeon HD 4650 1GB		19200 Mtexels/sec
	Difference: 17200 (90%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 460 (OEM) is superior to the Radeon HD 4650 1GB, by a large margin. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon HD 4650 1GB		4800 Mpixels/sec
	Difference: 16000 (333%)

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 largest amount of information (measured in MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.