Radeon HD 4670 1GB vs Radeon RX 5500

Intro

Compare those specifications to the Radeon RX 5500, which makes use of a 7 nm design. AMD has set the core frequency at 1670 MHz. The GDDR6 RAM is set to run at a speed of 1750 MHz on this card. 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 4670 1GB		70 Watts
Radeon RX 5500		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

In theory, the Radeon RX 5500 should be 552% quicker than the Radeon HD 4670 1GB overall, due to its higher data rate. (explain)

Radeon RX 5500		229376 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 194176 (552%)

Texel Rate

The Radeon RX 5500 will be quite a bit (more or less 512%) more effective at texture filtering than the Radeon HD 4670 1GB. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 122960 (512%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 5500 is superior to the Radeon HD 4670 1GB, by a large margin. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 47440 (791%)

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 (counted in MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.