GeForce 830M vs GeForce 9500 GT DDR2

Intro

Compare all of that to the GeForce 9500 GT DDR2, which comes with GPU clock speed of 550 MHz, and 256 MB of DDR2 RAM running at 500 MHz through a 128-bit bus. It also is comprised of 32 Stream Processors, 16 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce 9500 GT DDR2		50 Watts
	Difference: 25 Watts (100%)

Memory Bandwidth

Theoretically, the GeForce 9500 GT DDR2 should be a small bit faster than the GeForce 830M overall. (explain)

GeForce 9500 GT DDR2		16000 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 1600 (11%)

Texel Rate

The GeForce 830M is quite a bit (approximately 87%) more effective at texture filtering than the GeForce 9500 GT DDR2. (explain)

GeForce 830M		16464 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 7664 (87%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 830M is a better choice, by a large margin. (explain)

GeForce 830M		8232 Mpixels/sec
GeForce 9500 GT DDR2		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: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.