Radeon R7 M265 vs Radeon R9 390X 8G

Intro

Compare all that to the Radeon R9 390X 8G, which features a clock speed of 1050 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 512-bit bus, and uses a 28 nm design. It features 2816 SPUs, 176 TAUs, 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 390X 8G		13555 points
Radeon R7 M265		3256 points
	Difference: 10299 (316%)

Ethereum Mining Hash Rate

Radeon R9 390X 8G		32 Mh/s
Radeon R7 M265		14 Mh/s
	Difference: 18 (129%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 390X 8G is 1100% quicker than the Radeon R7 M265 overall, due to its greater bandwidth. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 352000 (1100%)

Texel Rate

The Radeon R9 390X 8G will be quite a bit (approximately 962%) faster with regards to anisotropic filtering than the Radeon R7 M265. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 167400 (962%)

Pixel Rate

The Radeon R9 390X 8G is quite a bit (approximately 1059%) faster with regards to FSAA than the Radeon R7 M265, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 61400 (1059%)

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 (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units of the card 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.