Radeon HD 6870 vs Radeon R7 250

Intro

Compare those specifications to the Radeon R7 250, which features core clock speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator 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 HD 6870		2870 points
Radeon R7 250		1836 points
	Difference: 1034 (56%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon HD 6870		151 Watts
	Difference: 86 Watts (132%)

Memory Bandwidth

The Radeon HD 6870, in theory, should perform quite a bit faster than the Radeon R7 250 overall. (explain)

Radeon HD 6870		134400 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 60800 (83%)

Texel Rate

The Radeon HD 6870 is quite a bit (about 110%) better at anisotropic filtering than the Radeon R7 250. (explain)

Radeon HD 6870		50400 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 26400 (110%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6870 is superior to the Radeon R7 250, by a large margin. (explain)

Radeon HD 6870		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: Bandwidth is the largest amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.