GeForce GT 320 vs GeForce GTS 250 512MB

Intro

Compare those specifications to the GeForce GTS 250 512MB, which features clock speeds of 738 MHz on the GPU, and 1100 MHz on the 512 MB of GDDR3 memory. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTS 250 512MB		145 Watts
	Difference: 102 Watts (237%)

Memory Bandwidth

The GeForce GTS 250 512MB should theoretically perform much faster than the GeForce GT 320 overall. (explain)

GeForce GTS 250 512MB		70400 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 45120 (178%)

Texel Rate

The GeForce GTS 250 512MB should be quite a bit (more or less 264%) faster with regards to texture filtering than the GeForce GT 320. (explain)

GeForce GTS 250 512MB		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 512MB is the winner, by a large margin. (explain)

GeForce GTS 250 512MB		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 largest amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 are processed per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the 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 write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.