Radeon R7 M265 vs Radeon R9 290X

Intro

Compare all of that to the Radeon R9 290X, which has GPU clock speed of 800 MHz, and 4096 MB of GDDR5 RAM set to run at 1250 MHz through a 512-bit bus. It also features 2816 Stream Processors, 176 Texture Address Units, and 64 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 290X		10609 points
Radeon R7 M265		3256 points
	Difference: 7353 (226%)

Ethereum Mining Hash Rate

Radeon R9 290X		29 Mh/s
Radeon R7 M265		14 Mh/s
	Difference: 15 (107%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R9 290X should in theory be much better than the Radeon R7 M265 in general. (explain)

Radeon R9 290X		320000 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 288000 (900%)

Texel Rate

The Radeon R9 290X should be a lot (about 709%) faster with regards to anisotropic filtering than the Radeon R7 M265. (explain)

Radeon R9 290X		140800 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 123400 (709%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 290X is a better choice, by a large margin. (explain)

Radeon R9 290X		51200 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 45400 (783%)

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 (measured in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR 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 higher this number, the better the video 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 amount of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.