GeForce GTS 150 vs GeForce GTX 460 SE

Intro

Compare those specifications to the GeForce GTX 460 SE, which features clock speeds of 650 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 RAM. It features 288 SPUs as well as 48 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 9 Watts (6%)

Memory Bandwidth

The GeForce GTX 460 SE should in theory perform much faster than the GeForce GTS 150 in general. (explain)

GeForce GTX 460 SE		108800 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 76800 (240%)

Texel Rate

The GeForce GTS 150 will be a lot (approximately 52%) faster with regards to anisotropic filtering than the GeForce GTX 460 SE. (explain)

GeForce GTS 150		47360 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 16160 (52%)

Pixel Rate

The GeForce GTX 460 SE will be a lot (more or less 76%) faster with regards to full screen anti-aliasing than the GeForce GTS 150, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 8960 (76%)

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 data (measured in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that can be applied in one second. This number 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 maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.