GeForce 920M vs GeForce GTS 150

Intro

Compare all of that to the GeForce GTS 150, which features core clock speeds of 740 MHz on the GPU, and 500 MHz on the 1024 MB of GDDR3 RAM. It features 128 SPUs along with 64 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTS 150 should in theory be quite a bit superior to the GeForce 920M overall. (explain)

GeForce GTS 150		32000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 17600 (122%)

Texel Rate

The GeForce GTS 150 will be a lot (approximately 55%) faster with regards to AF than the GeForce 920M. (explain)

GeForce GTS 150		47360 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 16832 (55%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTS 150 is a better choice, by a large margin. (explain)

GeForce GTS 150		11840 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 4208 (55%)

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 (measured in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.