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GeForce GTX 1650 vs Radeon HD 4650 1GB

Intro

The GeForce GTX 1650 has clock speeds of 1485 MHz on the GPU, and 8000 MHz on the 4096 MB of GDDR5 memory. It features 896 SPUs along with 56 TAUs and 32 ROPs.

Compare all of that to the Radeon HD 4650 1GB, which features core clock speeds of 600 MHz on the GPU, and 700 MHz on the 1024 MB of GDDR3 RAM. It features 320(64x5) SPUs along with 32 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4650 1GB		55 Watts
GeForce GTX 1650		75 Watts
	Difference: 20 Watts (36%)

Memory Bandwidth

In theory, the GeForce GTX 1650 should be quite a bit faster than the Radeon HD 4650 1GB overall. (explain)

GeForce GTX 1650		131072 MB/sec
Radeon HD 4650 1GB		22400 MB/sec
	Difference: 108672 (485%)

Texel Rate

The GeForce GTX 1650 will be a lot (approximately 333%) more effective at texture filtering than the Radeon HD 4650 1GB. (explain)

GeForce GTX 1650		83160 Mtexels/sec
Radeon HD 4650 1GB		19200 Mtexels/sec
	Difference: 63960 (333%)

Pixel Rate

The GeForce GTX 1650 should be quite a bit (about 890%) better at full screen anti-aliasing than the Radeon HD 4650 1GB, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 1650		47520 Mpixels/sec
Radeon HD 4650 1GB		4800 Mpixels/sec
	Difference: 42720 (890%)

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

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GeForce GTX 1650

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Radeon HD 4650 1GB

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Specifications

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Model	GeForce GTX 1650	Radeon HD 4650 1GB
Manufacturer	nVidia	AMD
Year	April 2019	Sep 10, 2008
Code Name	TU117-300-A1	RV730 PRO
Memory	4096 MB	1024 MB
Core Speed	1485 MHz	600 MHz
Memory Speed	32000 MHz	1400 MHz
Power (Max TDP)	75 watts	55 watts
Bandwidth	131072 MB/sec	22400 MB/sec
Texel Rate	83160 Mtexels/sec	19200 Mtexels/sec
Pixel Rate	47520 Mpixels/sec	4800 Mpixels/sec
Unified Shaders	896	320(64x5)
Texture Mapping Units	56	32
Render Output Units	32	8
Bus Type	GDDR5	GDDR3
Bus Width	128-bit	128-bit
Fab Process	12 nm	55 nm
Transistors	4700 million	514 million
Bus	PCIe 3.0 x16	PCIe 2.0 x16, AGP 8x
DirectX Version	DirectX 12.0	DirectX 10.1
OpenGL Version	OpenGL 4.6	OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs 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 rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

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