GeForce GT 230 vs GeForce GTX 970M

Intro

Compare those specifications to the GeForce GTX 970M, which makes use of a 28 nm design. nVidia has set the core speed at 924 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this specific card. It features 1280 SPUs along with 80 Texture Address Units and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
GeForce GTX 970M		75 Watts
	Difference: 10 Watts (15%)

Memory Bandwidth

The GeForce GTX 970M, in theory, should be a lot faster than the GeForce GT 230 overall. (explain)

GeForce GTX 970M		96000 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 57600 (150%)

Texel Rate

The GeForce GTX 970M should be much (more or less 740%) faster with regards to anisotropic filtering than the GeForce GT 230. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 65120 (740%)

Pixel Rate

The GeForce GTX 970M should be much (more or less 908%) better at anti-aliasing than the GeForce GT 230, and capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 39952 (908%)

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 information (in units of megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 number is calculated 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's 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 fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.