GeForce GTX 580 vs GeForce GTX 650

Intro

Compare those specs to the GeForce GTX 650, which features a core clock speed of 1058 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

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 580		4956 points
GeForce GTX 650		2263 points
	Difference: 2693 (119%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 580		244 Watts
	Difference: 180 Watts (281%)

Memory Bandwidth

The GeForce GTX 580 should theoretically perform much faster than the GeForce GTX 650 in general. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 112384 (140%)

Texel Rate

The GeForce GTX 580 is quite a bit (approximately 46%) faster with regards to texture filtering than the GeForce GTX 650. (explain)

GeForce GTX 580		49408 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 15552 (46%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 580 is the winner, by far. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 20128 (119%)

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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.