Compare any two graphics cards:
GeForce GTX 470 vs GeForce GTX 650
IntroThe GeForce GTX 470 has a clock frequency of 607 MHz and a GDDR5 memory speed of 837 MHz. It also features a 320-bit memory bus, and makes use of a 40 nm design. It is made up of 448 SPUs, 56 Texture Address Units, and 40 ROPs.
Compare all that to the GeForce GTX 650, which has GPU clock speed of 1058 MHz, and 1024 MB of GDDR5 memory running at 1250 MHz through a 128-bit bus. It also features 384 Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.
BenchmarksThese are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
3DMark Fire Strike Graphics Score
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
As far as performance goes, the GeForce GTX 470 should in theory be much better than the GeForce GTX 650 overall. (explain)
Texel RateThe GeForce GTX 470 will be just a bit (more or less 0%) better at texture filtering than the GeForce GTX 650. (explain)
Pixel RateThe GeForce GTX 470 is a lot (more or less 43%) faster with regards to FSAA than the GeForce GTX 650, and also capable of handling higher screen resolutions while still performing well. (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.
GeForce GTX 470
GeForce GTX 650
Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core 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 processed in a second.
Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.
GeForce GTX 470
GeForce GTX 650