Radeon R7 M265 vs Radeon R9 280X

Intro

Compare those specifications to the Radeon R9 280X, which features GPU clock speed of 850 MHz, and 3072 MB of GDDR5 memory set to run at 1500 MHz through a 384-bit bus. It also is comprised of 2048 Stream Processors, 128 Texture Address Units, and 32 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 280X		8886 points
Radeon R7 M265		3256 points
	Difference: 5630 (173%)

Ethereum Mining Hash Rate

Radeon R9 280X		21 Mh/s
Radeon R7 M265		14 Mh/s
	Difference: 7 (50%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 280X should be 800% quicker than the Radeon R7 M265 overall, due to its higher data rate. (explain)

Radeon R9 280X		288000 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 256000 (800%)

Texel Rate

The Radeon R9 280X is much (approximately 525%) more effective at texture filtering than the Radeon R7 M265. (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 91400 (525%)

Pixel Rate

The Radeon R9 280X will be much (more or less 369%) better at full screen anti-aliasing than the Radeon R7 M265, and capable of handling higher resolutions more effectively. (explain)

Radeon R9 280X		27200 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 21400 (369%)

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 max amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, 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 that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.