GeForce 8300 GS (OEM) vs Radeon R5 M255

Intro

Compare all of that to the Radeon R5 M255, which uses a 28 nm design. AMD has clocked the core speed at 940 MHz. The DDR3 memory works at a speed of 1000 MHz on this particular card. It features 320 SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R5 M255 is 150% quicker than the GeForce 8300 GS (OEM) overall, because of its higher data rate. (explain)

Radeon R5 M255		16000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 9600 (150%)

Texel Rate

The Radeon R5 M255 will be much (about 944%) faster with regards to texture filtering than the GeForce 8300 GS (OEM). (explain)

Radeon R5 M255		18800 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 17000 (944%)

Pixel Rate

The Radeon R5 M255 is quite a bit (about 736%) better at anti-aliasing than the GeForce 8300 GS (OEM), and capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R5 M255		7520 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 6620 (736%)

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 megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to 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 reach the maximum fill rate.