GeForce 8600 GT 1GB DDR2 vs Radeon R7 250X

Intro

Compare those specifications to the Radeon R7 250X, which features a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB DDR2		47 Watts
Radeon R7 250X		95 Watts
	Difference: 48 Watts (102%)

Memory Bandwidth

Performance-wise, the Radeon R7 250X should in theory be quite a bit better than the GeForce 8600 GT 1GB DDR2 in general. (explain)

Radeon R7 250X		72000 MB/sec
GeForce 8600 GT 1GB DDR2		12800 MB/sec
	Difference: 59200 (463%)

Texel Rate

The Radeon R7 250X is much (about 363%) faster with regards to AF than the GeForce 8600 GT 1GB DDR2. (explain)

Radeon R7 250X		40000 Mtexels/sec
GeForce 8600 GT 1GB DDR2		8640 Mtexels/sec
	Difference: 31360 (363%)

Pixel Rate

The Radeon R7 250X is a lot (more or less 270%) faster with regards to anti-aliasing than the GeForce 8600 GT 1GB DDR2, and also should be able to handle higher screen resolutions while still performing well. (explain)

Radeon R7 250X		16000 Mpixels/sec
GeForce 8600 GT 1GB DDR2		4320 Mpixels/sec
	Difference: 11680 (270%)

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 largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core 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 output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.