Radeon R7 240 vs Radeon R9 M280X

Intro

Compare all of that to the Radeon R9 M280X, which comes with core speeds of 900 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. It features 896 SPUs along with 56 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon R9 M280X		75 Watts
	Difference: 45 Watts (150%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M280X should in theory be a lot better than the Radeon R7 240 overall. (explain)

Radeon R9 M280X		88000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 59200 (206%)

Texel Rate

The Radeon R9 M280X should be a lot (about 245%) more effective at texture filtering than the Radeon R7 240. (explain)

Radeon R9 M280X		50400 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 35800 (245%)

Pixel Rate

The Radeon R9 M280X will be quite a bit (approximately 147%) faster with regards to full screen anti-aliasing than the Radeon R7 240, and also capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 M280X		14400 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 8560 (147%)

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 maximum amount of data (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount 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 ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.