GeForce GTX 285 1GB vs GeForce GTX 550 Ti

Intro

Compare all that to the GeForce GTX 550 Ti, which has a core clock speed of 900 MHz and a GDDR5 memory frequency of 1026 MHz. It also uses a 192-bit bus, and makes use of a 40 nm design. It is comprised of 192 SPUs, 32 TAUs, and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti		116 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 88 Watts (76%)

Memory Bandwidth

Theoretically, the GeForce GTX 285 1GB should be a lot faster than the GeForce GTX 550 Ti in general. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GTX 550 Ti		98496 MB/sec
	Difference: 60480 (61%)

Texel Rate

The GeForce GTX 285 1GB will be a lot (more or less 80%) better at anisotropic filtering than the GeForce GTX 550 Ti. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce GTX 550 Ti		28800 Mtexels/sec
	Difference: 23040 (80%)

Pixel Rate

The GeForce GTX 550 Ti is just a bit (about 4%) better at anti-aliasing than the GeForce GTX 285 1GB, and should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 864 (4%)

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 (measured in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.