Radeon R7 M265 vs Radeon R9 290X

Intro

Compare all that to the Radeon R9 290X, which has a GPU core clock speed of 800 MHz, and 4096 MB of GDDR5 RAM running at 1250 MHz through a 512-bit bus. It also features 2816 SPUs, 176 Texture Address Units, and 64 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 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

Theoretically speaking, the Radeon R9 290X is 900% quicker than the Radeon R7 M265 overall, due to its higher bandwidth. (explain)

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

Texel Rate

The Radeon R9 290X will be a lot (more or less 709%) better at 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 using high levels of AA is important to you, then the Radeon R9 290X is the winner, 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 largest amount of data (counted in MB per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must 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 amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.