Compare any two graphics cards:
GeForce GTX 285 1GB vs Geforce GTX 680
IntroThe GeForce GTX 285 1GB uses a 55 nm design. nVidia has clocked the core frequency at 648 MHz. The GDDR3 memory is set to run at a frequency of 1242 MHz on this specific card. It features 240 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.
Compare all that to the Geforce GTX 680, which makes use of a 28 nm design. nVidia has clocked the core frequency at 1006 MHz. The GDDR5 memory runs at a frequency of 1502 MHz on this card. It features 1536 SPUs along with 128 TAUs and 32 ROPs.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
As far as performance goes, the Geforce GTX 680 should in theory be quite a bit better than the GeForce GTX 285 1GB overall. (explain)
Texel RateThe Geforce GTX 680 is much (about 148%) better at texture filtering than the GeForce GTX 285 1GB. (explain)
Pixel RateIf using lots of anti-aliasing is important to you, then the Geforce GTX 680 is superior to the GeForce GTX 285 1GB, and very much so. (explain)
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 ComparisonPlease note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
Memory Bandwidth: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write 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 the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.