GeForce GTX 1650 vs Radeon HD 7770

Intro

Compare all that to the Radeon HD 7770, which has a GPU core clock speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1650		75 Watts
Radeon HD 7770		80 Watts
	Difference: 5 Watts (7%)

Memory Bandwidth

In theory, the GeForce GTX 1650 should perform quite a bit faster than the Radeon HD 7770 overall. (explain)

GeForce GTX 1650		131072 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 59072 (82%)

Texel Rate

The GeForce GTX 1650 should be quite a bit (about 108%) more effective at texture filtering than the Radeon HD 7770. (explain)

GeForce GTX 1650		83160 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 43160 (108%)

Pixel Rate

The GeForce GTX 1650 will be a lot (more or less 197%) faster with regards to full screen anti-aliasing than the Radeon HD 7770, and should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 1650		47520 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 31520 (197%)

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 information (counted in megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the 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 most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core 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 fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.