GeForce GTS 150 vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which comes with GPU core speed of 1100 MHz, and 4096 MB of GDDR5 RAM set to run at 1500 MHz through a 128-bit bus. It also features 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M385X should theoretically perform much faster than the GeForce GTS 150 overall. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 64000 (200%)

Texel Rate

The Radeon R9 M385X will be quite a bit (approximately 30%) better at AF than the GeForce GTS 150. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce GTS 150		47360 Mtexels/sec
	Difference: 14240 (30%)

Pixel Rate

The Radeon R9 M385X is a lot (approximately 49%) faster with regards to AA than the GeForce GTS 150, and should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 5760 (49%)

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 information (measured in megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at 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 can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.