GeForce GTS 150 vs GeForce GTX 470

Intro

Compare those specs to the GeForce GTX 470, which makes use of a 40 nm design. nVidia has set the core frequency at 607 MHz. The GDDR5 memory works at a frequency of 837 MHz on this particular card. 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

Theoretically speaking, the GeForce GTX 470 will be 319% quicker than the GeForce GTS 150 in general, due to its greater data rate. (explain)

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

Texel Rate

The GeForce GTS 150 will be a lot (approximately 39%) better at 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 should be a lot (approximately 105%) more effective at AA than the GeForce GTS 150, and will be able to handle higher 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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.