Radeon HD 6850 vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which makes use of a 28 nm design. AMD has clocked the core speed at 730 MHz. The DDR3 memory is set to run at a frequency of 900 MHz on this specific model. It features 320 SPUs along with 20 Texture Address Units and 8 ROPs.

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 6850		2395 points
Radeon R7 240		1218 points
	Difference: 1177 (97%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon HD 6850		127 Watts
	Difference: 97 Watts (323%)

Memory Bandwidth

In theory, the Radeon HD 6850 will be 344% faster than the Radeon R7 240 in general, due to its higher bandwidth. (explain)

Radeon HD 6850		128000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 99200 (344%)

Texel Rate

The Radeon HD 6850 is a lot (approximately 155%) better at anisotropic filtering than the Radeon R7 240. (explain)

Radeon HD 6850		37200 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 22600 (155%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 6850 is the winner, by far. (explain)

Radeon HD 6850		24800 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 18960 (325%)

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 information (measured in megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.