GeForce GTX 460 SE vs Radeon HD 4650 512MB

Intro

Compare all of that to the Radeon HD 4650 512MB, which has a GPU core clock speed of 600 MHz, and 512 MB of DDR2 RAM set to run at 500 MHz through a 128-bit bus. It also features 320(64x5) Stream Processors, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4650 512MB		55 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 95 Watts (173%)

Memory Bandwidth

The GeForce GTX 460 SE, in theory, should perform much faster than the Radeon HD 4650 512MB overall. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 4650 512MB		16000 MB/sec
	Difference: 92800 (580%)

Texel Rate

The GeForce GTX 460 SE will be quite a bit (more or less 63%) better at anisotropic filtering than the Radeon HD 4650 512MB. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
Radeon HD 4650 512MB		19200 Mtexels/sec
	Difference: 12000 (63%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 SE is the winner, by far. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 4650 512MB		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 maximum amount of information (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.