GeForce GTX 1650 vs GeForce GTX 580

Intro

Compare all of that to the GeForce GTX 580, which has a GPU core clock speed of 772 MHz, and 1536 MB of GDDR5 RAM running at 1002 MHz through a 384-bit bus. It also is comprised of 512 SPUs, 64 TAUs, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1650		75 Watts
GeForce GTX 580		244 Watts
	Difference: 169 Watts (225%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 580 should theoretically be much superior to the GeForce GTX 1650 overall. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTX 1650		131072 MB/sec
	Difference: 61312 (47%)

Texel Rate

The GeForce GTX 1650 is much (more or less 68%) faster with regards to anisotropic filtering than the GeForce GTX 580. (explain)

GeForce GTX 1650		83160 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 33752 (68%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 1650 is a better choice, by a large margin. (explain)

GeForce GTX 1650		47520 Mpixels/sec
GeForce GTX 580		37056 Mpixels/sec
	Difference: 10464 (28%)

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 maximum amount of data (measured in MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, 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 number of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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.