GeForce 8300 GS (OEM) vs Radeon R9 M295X

Intro

Compare those specifications to the Radeon R9 M295X, which features a GPU core clock speed of 750 MHz, and 4096 MB of GDDR5 RAM running at 1375 MHz through a 256-bit bus. It also features 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
Radeon R9 M295X		125 Watts
	Difference: 85 Watts (213%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M295X will be 2650% quicker than the GeForce 8300 GS (OEM) overall, due to its higher data rate. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 169600 (2650%)

Texel Rate

The Radeon R9 M295X will be much (more or less 5233%) more effective at anisotropic filtering than the GeForce 8300 GS (OEM). (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 94200 (5233%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 M295X is a better choice, by a large margin. (explain)

Radeon R9 M295X		24000 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 23100 (2567%)

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 (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 can be processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 get to the max fill rate.