GeForce 8800 GS vs Radeon R9 M385X

Intro

Compare those specs to the Radeon R9 M385X, which has core speeds of 1100 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 memory. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M385X should in theory perform a lot faster than the GeForce 8800 GS overall. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce 8800 GS		38400 MB/sec
	Difference: 57600 (150%)

Texel Rate

The Radeon R9 M385X will be a lot (approximately 133%) more effective at texture filtering than the GeForce 8800 GS. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce 8800 GS		26400 Mtexels/sec
	Difference: 35200 (133%)

Pixel Rate

The Radeon R9 M385X is a lot (approximately 167%) faster with regards to full screen anti-aliasing than the GeForce 8800 GS, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce 8800 GS		6600 Mpixels/sec
	Difference: 11000 (167%)

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 information (in units of MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.