Radeon HD 7750 vs Radeon RX 580

Intro

Compare those specs to the Radeon RX 580, which features a core clock speed of 1257 MHz and a GDDR5 memory speed of 2000 MHz. It also uses a 256-bit memory bus, and makes use of a 14 nm design. It is comprised of 2304 SPUs, 144 TAUs, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 580		13630 points
Radeon HD 7750		2240 points
	Difference: 11390 (508%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon RX 580		185 Watts
	Difference: 130 Watts (236%)

Memory Bandwidth

Theoretically, the Radeon RX 580 should be quite a bit faster than the Radeon HD 7750 in general. (explain)

Radeon RX 580		262144 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 190144 (264%)

Texel Rate

The Radeon RX 580 should be a lot (more or less 607%) better at AF than the Radeon HD 7750. (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 155408 (607%)

Pixel Rate

The Radeon RX 580 is much (more or less 214%) faster with regards to AA than the Radeon HD 7750, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 580		40224 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 27424 (214%)

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: Memory bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high 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 amount of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.