GeForce GT 230 vs GeForce GT 240 GDDR5

Intro

Compare all of that to the GeForce GT 240 GDDR5, which comes with core speeds of 550 MHz on the GPU, and 850 MHz on the 512 MB of GDDR5 RAM. It features 96 SPUs along with 32 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
GeForce GT 240 GDDR5		70 Watts
	Difference: 5 Watts (8%)

Memory Bandwidth

Theoretically, the GeForce GT 240 GDDR5 should perform quite a bit faster than the GeForce GT 230 in general. (explain)

GeForce GT 240 GDDR5		54400 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 16000 (42%)

Texel Rate

The GeForce GT 240 GDDR5 should be quite a bit (about 100%) faster with regards to anisotropic filtering than the GeForce GT 230. (explain)

GeForce GT 240 GDDR5		17600 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 8800 (100%)

Pixel Rate

Both cards have exactly the same pixel fill rate, so in theory they should be equally good at at full screen anti-aliasing, and be capable of handling the same resolutions. (explain)

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 (measured in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.