Radeon HD 5870 vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which features core speeds of 730 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 RAM. It features 320 SPUs as well as 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon HD 5870		188 Watts
	Difference: 158 Watts (527%)

Memory Bandwidth

The Radeon HD 5870 should in theory be a lot faster than the Radeon R7 240 in general. (explain)

Radeon HD 5870		153600 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 124800 (433%)

Texel Rate

The Radeon HD 5870 will be quite a bit (approximately 366%) faster with regards to AF than the Radeon R7 240. (explain)

Radeon HD 5870		68000 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 53400 (366%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 5870 is the winner, by far. (explain)

Radeon HD 5870		27200 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 21360 (366%)

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 moved past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.