GeForce 8800 GT 512MB vs Radeon R9 380X

Intro

Compare all that to the Radeon R9 380X, which comes with core speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB		105 Watts
Radeon R9 380X		190 Watts
	Difference: 85 Watts (81%)

Memory Bandwidth

In theory, the Radeon R9 380X should perform a lot faster than the GeForce 8800 GT 512MB in general. (explain)

Radeon R9 380X		182400 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 124800 (217%)

Texel Rate

The Radeon R9 380X will be a lot (approximately 270%) more effective at AF than the GeForce 8800 GT 512MB. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 90560 (270%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 380X is the winner, by a large margin. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 21440 (223%)

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 largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type 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 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 speed of the chip. The better the texel rate, the better the 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 maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.