GeForce GTX 1630 vs Radeon HD 7770

Intro

Compare those specifications to the Radeon HD 7770, which has clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
Radeon HD 7770		80 Watts
	Difference: 5 Watts (7%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1630 should be 37% quicker than the Radeon HD 7770 in general, due to its greater data rate. (explain)

GeForce GTX 1630		98304 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 26304 (37%)

Texel Rate

The GeForce GTX 1630 should be quite a bit (more or less 39%) faster with regards to anisotropic filtering than the Radeon HD 7770. (explain)

GeForce GTX 1630		55680 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 15680 (39%)

Pixel Rate

The GeForce GTX 1630 will be quite a bit (approximately 74%) better at anti-aliasing than the Radeon HD 7770, and also able to handle higher resolutions while still performing well. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 11840 (74%)

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: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. 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 output rate is also dependant 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.