GeForce 9500 GT DDR2 vs Radeon R9 M270X

Intro

Compare that to the Radeon R9 M270X, which features a clock speed of 725 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M270X is 350% quicker than the GeForce 9500 GT DDR2 in general, because of its higher bandwidth. (explain)

Radeon R9 M270X		72000 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 56000 (350%)

Texel Rate

The Radeon R9 M270X will be a lot (about 230%) more effective at anisotropic filtering than the GeForce 9500 GT DDR2. (explain)

Radeon R9 M270X		29000 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 20200 (230%)

Pixel Rate

The Radeon R9 M270X should be much (approximately 164%) more effective at anti-aliasing than the GeForce 9500 GT DDR2, and also should be able to handle higher resolutions more effectively. (explain)

Radeon R9 M270X		11600 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 7200 (164%)

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 max amount of information (counted in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must 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 amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.