Radeon R7 M265 vs Radeon R9 280

Intro

Compare that to the Radeon R9 280, which uses a 28 nm design. AMD has clocked the core frequency at 933 MHz. The GDDR5 RAM works at a frequency of 1250 MHz on this model. It features 1792 SPUs as well as 112 TAUs and 32 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 R9 280		7961 points
Radeon R7 M265		3256 points
	Difference: 4705 (145%)

Ethereum Mining Hash Rate

Radeon R9 280		22 Mh/s
Radeon R7 M265		14 Mh/s
	Difference: 8 (57%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 280 should be quite a bit faster than the Radeon R7 M265 overall. (explain)

Radeon R9 280		240000 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 208000 (650%)

Texel Rate

The Radeon R9 280 is a lot (approximately 501%) better at anisotropic filtering than the Radeon R7 M265. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 87096 (501%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 280 is the winner, and very much so. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 24056 (415%)

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 data (measured in MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 per second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.