Radeon HD 7750 vs Radeon RX 470 4GB

Intro

Compare those specs to the Radeon RX 470 4GB, which uses a 14 nm design. AMD has set the core frequency at 926 MHz. The GDDR5 memory is set to run at a frequency of 1650 MHz on this particular model. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 65 Watts (118%)

Memory Bandwidth

The Radeon RX 470 4GB should theoretically be much faster than the Radeon HD 7750 overall. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 139200 (193%)

Texel Rate

The Radeon RX 470 4GB is a lot (approximately 363%) more effective at texture filtering than the Radeon HD 7750. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 92928 (363%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 470 4GB is superior to the Radeon HD 7750, by far. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 16832 (132%)

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 (counted in MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This 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 video 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 that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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 reach the maximum fill rate.