GeForce 830M vs GeForce GTS 250 1GB

Intro

Compare that to the GeForce GTS 250 1GB, which features core speeds of 738 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR3 memory. It features 128 SPUs as well as 64 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 120 Watts (480%)

Memory Bandwidth

The GeForce GTS 250 1GB should in theory be much faster than the GeForce 830M overall. (explain)

GeForce GTS 250 1GB		70400 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 56000 (389%)

Texel Rate

The GeForce GTS 250 1GB will be much (more or less 187%) better at AF than the GeForce 830M. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 30768 (187%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTS 250 1GB is the winner, by far. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 3576 (43%)

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 (counted in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.