GeForce GT 320 vs GeForce GTX 285 2GB

Intro

Compare that to the GeForce GTX 285 2GB, which comes with a core clock frequency of 648 MHz and a GDDR3 memory frequency of 1242 MHz. It also uses a 512-bit memory bus, and uses a 55 nm design. It is comprised of 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 161 Watts (374%)

Memory Bandwidth

Performance-wise, the GeForce GTX 285 2GB should in theory be a lot better than the GeForce GT 320 overall. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 133696 (529%)

Texel Rate

The GeForce GTX 285 2GB should be quite a bit (about 300%) faster with regards to anisotropic filtering than the GeForce GT 320. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 38880 (300%)

Pixel Rate

The GeForce GTX 285 2GB will be a lot (approximately 380%) more effective at FSAA than the GeForce GT 320, and also should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 16416 (380%)

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 transferred across the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 can be processed per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out 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 rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.