GeForce GTS 150 vs Radeon R9 285

Intro

Compare those specifications to the Radeon R9 285, which has a core clock frequency of 918 MHz and a GDDR5 memory speed of 1375 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
Radeon R9 285		190 Watts
	Difference: 49 Watts (35%)

Memory Bandwidth

The Radeon R9 285 should theoretically perform a lot faster than the GeForce GTS 150 in general. (explain)

Radeon R9 285		176000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 144000 (450%)

Texel Rate

The Radeon R9 285 is much (more or less 117%) more effective at anisotropic filtering than the GeForce GTS 150. (explain)

Radeon R9 285		102816 Mtexels/sec
GeForce GTS 150		47360 Mtexels/sec
	Difference: 55456 (117%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 285 is superior to the GeForce GTS 150, by a large margin. (explain)

Radeon R9 285		29376 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 17536 (148%)

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 information (counted in MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.