Radeon HD 4650 512MB vs Radeon RX 5500

Intro

Compare those specifications to the Radeon RX 5500, which features core clock speeds of 1670 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR6 RAM. It features 1408 SPUs along with 88 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4650 512MB		55 Watts
Radeon RX 5500		150 Watts
	Difference: 95 Watts (173%)

Memory Bandwidth

Performance-wise, the Radeon RX 5500 should in theory be a lot better than the Radeon HD 4650 512MB overall. (explain)

Radeon RX 5500		229376 MB/sec
Radeon HD 4650 512MB		16000 MB/sec
	Difference: 213376 (1334%)

Texel Rate

The Radeon RX 5500 is a lot (more or less 665%) better at AF than the Radeon HD 4650 512MB. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon HD 4650 512MB		19200 Mtexels/sec
	Difference: 127760 (665%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 5500 is superior to the Radeon HD 4650 512MB, by a large margin. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon HD 4650 512MB		4800 Mpixels/sec
	Difference: 48640 (1013%)

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 maximum amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, 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 maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output 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 ability to reach the max fill rate.