GeForce GT 230 vs GeForce GTS 150

Intro

Compare that to the GeForce GTS 150, which uses a 55 nm design. nVidia has set the core speed at 740 MHz. The GDDR3 RAM works at a frequency of 500 MHz on this particular card. It features 128 SPUs along with 64 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
GeForce GTS 150		141 Watts
	Difference: 76 Watts (117%)

Memory Bandwidth

Performance-wise, the GeForce GT 230 should in theory be a bit better than the GeForce GTS 150 overall. (explain)

GeForce GT 230		38400 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 6400 (20%)

Texel Rate

The GeForce GTS 150 will be much (more or less 438%) more effective at AF than the GeForce GT 230. (explain)

GeForce GTS 150		47360 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 38560 (438%)

Pixel Rate

The GeForce GTS 150 should be a lot (more or less 169%) faster with regards to FSAA than the GeForce GT 230, and will be able to handle higher screen resolutions better. (explain)

GeForce GTS 150		11840 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 7440 (169%)

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 largest amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 number is worked out by multiplying the total texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.