GeForce 920M vs Radeon R9 M265X

Intro

Compare all that to the Radeon R9 M265X, which features GPU core speed of 575 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M265X, in theory, should perform a lot faster than the GeForce 920M in general. (explain)

Radeon R9 M265X		72000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 57600 (400%)

Texel Rate

The GeForce 920M is a lot (about 33%) better at anisotropic filtering than the Radeon R9 M265X. (explain)

GeForce 920M		30528 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 7528 (33%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M265X is a better choice, by far. (explain)

Radeon R9 M265X		9200 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 1568 (21%)

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 megabytes per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 processed per second. This is calculated by multiplying the total number of texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on 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 memory bandwidth is, the lower the potential to get to the max fill rate.