GeForce GTX 460 (OEM) vs GeForce GTX 460 1GB

Intro

Compare that to the GeForce GTX 460 1GB, which features a core clock frequency of 675 MHz and a GDDR5 memory speed of 900 MHz. It also features a 256-bit memory bus, and uses a 40 nm design. It is made up of 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 (OEM)		150 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 10 Watts (7%)

Memory Bandwidth

In theory, the GeForce GTX 460 1GB should perform a bit faster than the GeForce GTX 460 (OEM) in general. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GTX 460 (OEM)		108800 MB/sec
	Difference: 6400 (6%)

Texel Rate

The GeForce GTX 460 1GB should be a small bit (about 4%) faster with regards to AF than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 1400 (4%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 460 1GB is superior to the GeForce GTX 460 (OEM), but it probably won't make a huge difference. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce GTX 460 (OEM)		20800 Mpixels/sec
	Difference: 800 (4%)

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 maximum amount of data (counted in MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.