GeForce 8800 GT 512MB vs Radeon R9 M380

Intro

Compare all that to the Radeon R9 M380, which features core speeds of 1000 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M380, in theory, should perform much faster than the GeForce 8800 GT 512MB in general. (explain)

Radeon R9 M380		96000 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 38400 (67%)

Texel Rate

The Radeon R9 M380 is a bit (about 19%) faster with regards to anisotropic filtering than the GeForce 8800 GT 512MB. (explain)

Radeon R9 M380		40000 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 6400 (19%)

Pixel Rate

The Radeon R9 M380 should be a lot (more or less 67%) faster with regards to anti-aliasing than the GeForce 8800 GT 512MB, and will be able to handle higher resolutions while still performing well. (explain)

Radeon R9 M380		16000 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 6400 (67%)

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 max amount of information (in units of MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.