Radeon R7 M265 vs Radeon R9 290

Intro

Compare those specifications to the Radeon R9 290, which comes with a clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 512-bit bus, and makes use of a 28 nm design. It is comprised of 2560 SPUs, 160 TAUs, 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 290		9876 points
Radeon R7 M265		3256 points
	Difference: 6620 (203%)

Ethereum Mining Hash Rate

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

Power Usage and Theoretical Benchmarks

Memory Bandwidth

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

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

Texel Rate

The Radeon R9 290 will be much (approximately 636%) faster with regards to AF than the Radeon R7 M265. (explain)

Radeon R9 290		128000 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 110600 (636%)

Pixel Rate

The Radeon R9 290 will be quite a bit (more or less 783%) faster with regards to AA than the Radeon R7 M265, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 290		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 largest amount of information (in units of megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 figure is worked out by multiplying the total texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.