GeForce GT 320 vs GeForce GTS 250 1GB

Intro

Compare those specifications to the GeForce GTS 250 1GB, which has a clock speed of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also makes use of a 256-bit memory bus, and uses a 65/55 nm design. It is made up of 128 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 102 Watts (237%)

Memory Bandwidth

In theory, the GeForce GTS 250 1GB is 178% quicker than the GeForce GT 320 in general, because of its greater bandwidth. (explain)

GeForce GTS 250 1GB		70400 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 45120 (178%)

Texel Rate

The GeForce GTS 250 1GB will be much (approximately 264%) more effective at texture filtering than the GeForce GT 320. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 34272 (264%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTS 250 1GB is a better choice, by a large margin. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 7488 (173%)

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 maximum amount of data (counted in megabytes per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.