GeForce 8600 GT 1GB GDDR3 vs Radeon R7 M265

Intro

Compare all of that to the Radeon R7 M265, which features GPU core speed of 725 MHz, and 2048 MB of DDR3 memory set to run at 1000 MHz through a 128-bit bus. It also is made up of 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R7 M265 should theoretically be a lot better than the GeForce 8600 GT 1GB GDDR3 overall. (explain)

Radeon R7 M265		32000 MB/sec
GeForce 8600 GT 1GB GDDR3		22400 MB/sec
	Difference: 9600 (43%)

Texel Rate

The Radeon R7 M265 will be quite a bit (more or less 101%) faster with regards to AF than the GeForce 8600 GT 1GB GDDR3. (explain)

Radeon R7 M265		17400 Mtexels/sec
GeForce 8600 GT 1GB GDDR3		8640 Mtexels/sec
	Difference: 8760 (101%)

Pixel Rate

The Radeon R7 M265 should be quite a bit (more or less 34%) more effective at anti-aliasing than the GeForce 8600 GT 1GB GDDR3, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R7 M265		5800 Mpixels/sec
GeForce 8600 GT 1GB GDDR3		4320 Mpixels/sec
	Difference: 1480 (34%)

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 (in units of megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 are applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a 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 amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.