GeForce GT 240 GDDR5 1GB vs Radeon R7 M265

Intro

Compare all that to the Radeon R7 M265, which features a GPU core clock speed of 725 MHz, and 2048 MB of DDR3 memory set to run at 1000 MHz through a 128-bit bus. It also is comprised of 384 Stream Processors, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GT 240 GDDR5 1GB will be 70% quicker than the Radeon R7 M265 overall, because of its higher data rate. (explain)

GeForce GT 240 GDDR5 1GB		54400 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 22400 (70%)

Texel Rate

The GeForce GT 240 GDDR5 1GB should be a little bit (about 1%) faster with regards to texture filtering than the Radeon R7 M265. (explain)

GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 200 (1%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R7 M265 is the winner, by far. (explain)

Radeon R7 M265		5800 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 1400 (32%)

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 information (measured in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.