Radeon R7 250X vs Radeon R7 370 4G

Intro

Compare those specifications to the Radeon R7 370 4G, which comes with a core clock speed of 975 MHz and a GDDR5 memory frequency of 1400 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
Radeon R7 370 4G		110 Watts
	Difference: 15 Watts (16%)

Memory Bandwidth

In theory, the Radeon R7 370 4G should perform quite a bit faster than the Radeon R7 250X overall. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 107200 (149%)

Texel Rate

The Radeon R7 370 4G is quite a bit (about 56%) more effective at anisotropic filtering than the Radeon R7 250X. (explain)

Radeon R7 370 4G		62400 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 22400 (56%)

Pixel Rate

The Radeon R7 370 4G is much (approximately 95%) more effective at AA than the Radeon R7 250X, and able to handle higher resolutions without losing too much performance. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 15200 (95%)

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 megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines 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 rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.