GeForce GTX Titan vs Radeon R9 M290X

Intro

Compare all of that to the Radeon R9 M290X, which features core speeds of 850 MHz on the GPU, and 1200 MHz on the 4096 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X		100 Watts
GeForce GTX Titan		250 Watts
	Difference: 150 Watts (150%)

Memory Bandwidth

As far as performance goes, the GeForce GTX Titan should theoretically be much better than the Radeon R9 M290X in general. (explain)

GeForce GTX Titan		288384 MB/sec
Radeon R9 M290X		153600 MB/sec
	Difference: 134784 (88%)

Texel Rate

The GeForce GTX Titan will be a lot (approximately 176%) better at AF than the Radeon R9 M290X. (explain)

GeForce GTX Titan		187488 Mtexels/sec
Radeon R9 M290X		68000 Mtexels/sec
	Difference: 119488 (176%)

Pixel Rate

The GeForce GTX Titan is a lot (more or less 48%) more effective at FSAA than the Radeon R9 M290X, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX Titan		40176 Mpixels/sec
Radeon R9 M290X		27200 Mpixels/sec
	Difference: 12976 (48%)

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 max amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 amount of texture map elements (texels) that are processed in one second. This number 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most 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 amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.