Radeon R7 250X 2GB vs Radeon RX 570

Intro

Compare all of that to the Radeon RX 570, which uses a 14 nm design. AMD has clocked the core speed at 1168 MHz. The GDDR5 RAM is set to run at a frequency of 1750 MHz on this specific model. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
Radeon RX 570		150 Watts
	Difference: 55 Watts (58%)

Memory Bandwidth

Theoretically, the Radeon RX 570 should be quite a bit faster than the Radeon R7 250X 2GB in general. (explain)

Radeon RX 570		229376 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 157376 (219%)

Texel Rate

The Radeon RX 570 should be a lot (about 274%) better at texture filtering than the Radeon R7 250X 2GB. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 109504 (274%)

Pixel Rate

The Radeon RX 570 will be much (more or less 134%) more effective at AA than the Radeon R7 250X 2GB, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 21376 (134%)

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 largest amount of data (in units of MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.