GeForce GTX 580 vs GeForce GTX 650

Intro

Compare those specifications to the GeForce GTX 650, which features core speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs as well as 32 TAUs and 16 ROPs.

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 be much faster than the GeForce GTX 650 overall. (explain)

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

Texel Rate

The GeForce GTX 580 should be quite a bit (about 46%) faster with regards to anisotropic filtering than the GeForce GTX 650. (explain)

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

Pixel Rate

The GeForce GTX 580 is much (approximately 119%) faster with regards to FSAA than the GeForce GTX 650, and should be capable of handling higher screen resolutions without losing too much performance. (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 max amount of information (measured in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 can be applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends 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 maximum fill rate.