GeForce GT 230 vs GeForce GTX 980M

Intro

Compare those specifications to the GeForce GTX 980M, which comes with core speeds of 1038 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 memory. It features 1536 SPUs as well as 96 TAUs and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
GeForce GTX 980M		100 Watts
	Difference: 35 Watts (54%)

Memory Bandwidth

Performance-wise, the GeForce GTX 980M should theoretically be a lot superior to the GeForce GT 230 in general. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 89600 (233%)

Texel Rate

The GeForce GTX 980M should be a lot (approximately 1032%) more effective at AF than the GeForce GT 230. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 90848 (1032%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 980M is the winner, by a large margin. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 62032 (1410%)

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 max amount of data (counted in megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.