GeForce GTS 150 vs Radeon R9 285

Intro

Compare those specifications to the Radeon R9 285, which features core speeds of 918 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 RAM. It features 1792 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the Radeon R9 285 should be 450% faster than the GeForce GTS 150 in general, because of its greater bandwidth. (explain)

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

Texel Rate

The Radeon R9 285 will be a lot (approximately 117%) faster with regards to 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 a better choice, by far. (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 maximum amount of data (in units of MB per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. 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 - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.