GeForce GTX 590 vs GeForce GTX 650

Intro

Compare that to the GeForce GTX 650, which features a clock speed of 1058 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

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Benchmarks

These 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

GeForce GTX 590		6680 points
GeForce GTX 650		2263 points
	Difference: 4417 (195%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 590		365 Watts
	Difference: 301 Watts (470%)

Memory Bandwidth

The GeForce GTX 590 should in theory be quite a bit faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 590		328320 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 248320 (310%)

Texel Rate

The GeForce GTX 590 will be much (about 129%) more effective at texture filtering than the GeForce GTX 650. (explain)

GeForce GTX 590		77696 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 43840 (129%)

Pixel Rate

The GeForce GTX 590 should be a lot (approximately 244%) faster with regards to AA than the GeForce GTX 650, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 590		58272 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 41344 (244%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.