GeForce GT 230 vs GeForce GTS 150

Intro

Compare that to the GeForce GTS 150, which has GPU core speed of 740 MHz, and 1024 MB of GDDR3 RAM running at 500 MHz through a 256-bit bus. It also is made up of 128 Stream Processors, 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

Theoretically speaking, the GeForce GT 230 should be 20% faster than the GeForce GTS 150 overall, due to its higher data rate. (explain)

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

Texel Rate

The GeForce GTS 150 is a lot (approximately 438%) faster with regards to texture filtering than the GeForce GT 230. (explain)

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

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTS 150 is superior to the GeForce GT 230, by a large margin. (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 max amount of information (in units of MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.