GeForce GTS 150 vs GeForce GTX 470

Intro

Compare those specs to the GeForce GTX 470, which has core speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 RAM. It features 448 SPUs as well as 56 TAUs and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
GeForce GTX 470		215 Watts
	Difference: 74 Watts (52%)

Memory Bandwidth

Performance-wise, the GeForce GTX 470 should in theory be a lot superior to the GeForce GTS 150 overall. (explain)

GeForce GTX 470		133920 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 101920 (319%)

Texel Rate

The GeForce GTS 150 will be quite a bit (more or less 39%) faster with regards to AF than the GeForce GTX 470. (explain)

GeForce GTS 150		47360 Mtexels/sec
GeForce GTX 470		33992 Mtexels/sec
	Difference: 13368 (39%)

Pixel Rate

The GeForce GTX 470 is quite a bit (about 105%) better at anti-aliasing than the GeForce GTS 150, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 470		24280 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 12440 (105%)

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 information (in units of MB per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen 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 the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.