GeForce 830M vs GeForce 9500 GT 1GB GDDR3

Intro

Compare those specs to the GeForce 9500 GT 1GB GDDR3, which has clock speeds of 550 MHz on the GPU, and 800 MHz on the 1024 MB of GDDR3 RAM. It features 32 SPUs along with 16 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce 9500 GT 1GB GDDR3		50 Watts
	Difference: 25 Watts (100%)

Memory Bandwidth

Theoretically speaking, the GeForce 9500 GT 1GB GDDR3 should perform much faster than the GeForce 830M overall. (explain)

GeForce 9500 GT 1GB GDDR3		25600 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 11200 (78%)

Texel Rate

The GeForce 830M is a lot (approximately 87%) faster with regards to texture filtering than the GeForce 9500 GT 1GB GDDR3. (explain)

GeForce 830M		16464 Mtexels/sec
GeForce 9500 GT 1GB GDDR3		8800 Mtexels/sec
	Difference: 7664 (87%)

Pixel Rate

The GeForce 830M is much (more or less 87%) more effective at FSAA than the GeForce 9500 GT 1GB GDDR3, and will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce 830M		8232 Mpixels/sec
GeForce 9500 GT 1GB GDDR3		4400 Mpixels/sec
	Difference: 3832 (87%)

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 data (counted in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 are processed in one second. This is calculated by multiplying the total texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.