Radeon R7 250 vs Radeon R9 270

Intro

Compare those specs to the Radeon R9 270, which has GPU core speed of 900 MHz, and 2048 MB of GDDR5 memory running at 1400 MHz through a 256-bit bus. It also features 1280 SPUs, 80 Texture Address Units, 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 R9 270		5943 points
Radeon R7 250		1836 points
	Difference: 4107 (224%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon R9 270		150 Watts
	Difference: 85 Watts (131%)

Memory Bandwidth

As far as performance goes, the Radeon R9 270 should theoretically be a lot better than the Radeon R7 250 in general. (explain)

Radeon R9 270		179200 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 105600 (143%)

Texel Rate

The Radeon R9 270 should be a lot (more or less 200%) better at AF than the Radeon R7 250. (explain)

Radeon R9 270		72000 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 48000 (200%)

Pixel Rate

The Radeon R9 270 is much (more or less 260%) more effective at full screen anti-aliasing than the Radeon R7 250, and will be able to handle higher resolutions better. (explain)

Radeon R9 270		28800 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 20800 (260%)

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 past the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number 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 the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.