GeForce GTS 150 vs GeForce GTX 465

Intro

Compare those specifications to the GeForce GTX 465, which has clock speeds of 607 MHz on the GPU, and 802 MHz on the 1024 MB of GDDR5 memory. It features 352 SPUs as well as 44 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
GeForce GTX 465		200 Watts
	Difference: 59 Watts (42%)

Memory Bandwidth

The GeForce GTX 465 should in theory be much faster than the GeForce GTS 150 in general. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 70592 (221%)

Texel Rate

The GeForce GTS 150 should be a lot (more or less 77%) better at texture filtering than the GeForce GTX 465. (explain)

GeForce GTS 150		47360 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 20652 (77%)

Pixel Rate

The GeForce GTX 465 is quite a bit (about 64%) more effective at FSAA than the GeForce GTS 150, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 7584 (64%)

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 max amount of information (in units of megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, 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 figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.