GeForce 8800 GT 256MB vs Radeon R9 M385X

Intro

Compare those specs to the Radeon R9 M385X, which makes use of a 28 nm design. AMD has set the core frequency at 1100 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this card. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M385X should be a lot faster than the GeForce 8800 GT 256MB in general. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce 8800 GT 256MB		44800 MB/sec
	Difference: 51200 (114%)

Texel Rate

The Radeon R9 M385X should be quite a bit (more or less 83%) more effective at anisotropic filtering than the GeForce 8800 GT 256MB. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce 8800 GT 256MB		33600 Mtexels/sec
	Difference: 28000 (83%)

Pixel Rate

The Radeon R9 M385X will be quite a bit (approximately 83%) better at AA than the GeForce 8800 GT 256MB, and will be able to handle higher resolutions while still performing well. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce 8800 GT 256MB		9600 Mpixels/sec
	Difference: 8000 (83%)

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 data (measured in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 texture map elements (texels) that can be processed per second. This figure is calculated 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.