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GeForce GTX 1650 vs Radeon HD 4650 1GB

Intro

The GeForce GTX 1650 comes with a clock frequency of 1485 MHz and a GDDR5 memory frequency of 8000 MHz. It also uses a 128-bit bus, and makes use of a 12 nm design. It is comprised of 896 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon HD 4650 1GB, which uses a 55 nm design. AMD has set the core frequency at 600 MHz. The GDDR3 RAM works at a speed of 700 MHz on this particular card. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

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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

As far as performance goes, the GeForce GTX 1650 should theoretically be a lot better 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 is much (more or less 333%) better at AF 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 much (about 890%) better at full screen anti-aliasing than the Radeon HD 4650 1GB, and also will be capable of handling higher screen resolutions better. (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 maximum amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

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