Radeon R7 M265 vs Radeon R9 390X 8G

Intro

Compare those specs to the Radeon R9 390X 8G, which comes with a core clock frequency of 1050 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 512-bit bus, and makes use of a 28 nm design. It features 2816 SPUs, 176 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

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

Performance-wise, the Radeon R9 390X 8G should theoretically be quite a bit better than the Radeon R7 M265 overall. (explain)

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

Texel Rate

The Radeon R9 390X 8G is quite a bit (about 962%) more effective at 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 much (about 1059%) better at FSAA than the Radeon R7 M265, and will be able to handle higher resolutions without slowing down too much. (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 max amount of data (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.