GeForce GT 240 GDDR5 1GB vs GeForce GTS 250 1GB

Intro

Compare those specifications to the GeForce GTS 250 1GB, which makes use of a 65/55 nm design. nVidia has clocked the core frequency at 738 MHz. The GDDR3 RAM runs at a frequency of 1100 MHz on this specific model. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 75 Watts (107%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 250 1GB should be a lot faster than the GeForce GT 240 GDDR5 1GB in general. (explain)

GeForce GTS 250 1GB		70400 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 16000 (29%)

Texel Rate

The GeForce GTS 250 1GB should be a lot (about 168%) better at anisotropic filtering than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 29632 (168%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTS 250 1GB is a better choice, and very much so. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 7408 (168%)

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 information (counted in MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.