GeForce 8300 GS (OEM) vs Radeon R9 M275X

Intro

Compare that to the Radeon R9 M275X, which features a clock frequency of 900 MHz and a GDDR5 memory speed of 1125 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
Radeon R9 M275X		50 Watts
	Difference: 10 Watts (25%)

Memory Bandwidth

The Radeon R9 M275X should theoretically perform a lot faster than the GeForce 8300 GS (OEM) in general. (explain)

Radeon R9 M275X		72000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 65600 (1025%)

Texel Rate

The Radeon R9 M275X will be quite a bit (more or less 1900%) more effective at anisotropic filtering than the GeForce 8300 GS (OEM). (explain)

Radeon R9 M275X		36000 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 34200 (1900%)

Pixel Rate

The Radeon R9 M275X should be quite a bit (more or less 1500%) faster with regards to AA than the GeForce 8300 GS (OEM), and able to handle higher screen resolutions better. (explain)

Radeon R9 M275X		14400 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 13500 (1500%)

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 MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher 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 card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.