GeForce 8500 GT vs Radeon R9 M295X

Intro

Compare that to the Radeon R9 M295X, which comes with GPU clock speed of 750 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT		45 Watts
Radeon R9 M295X		125 Watts
	Difference: 80 Watts (178%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M295X should theoretically be a lot better than the GeForce 8500 GT in general. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 163200 (1275%)

Texel Rate

The Radeon R9 M295X is much (more or less 2567%) faster with regards to AF than the GeForce 8500 GT. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 92400 (2567%)

Pixel Rate

The Radeon R9 M295X is much (approximately 1233%) more effective at AA than the GeForce 8500 GT, and also will be able to handle higher resolutions better. (explain)

Radeon R9 M295X		24000 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 22200 (1233%)

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 data (in units of megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.