GeForce GT 340 vs Radeon R9 M280X

Intro

Compare those specs to the Radeon R9 M280X, which has GPU core speed of 900 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 128-bit bus. It also is comprised of 896 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
Radeon R9 M280X		75 Watts
	Difference: 6 Watts (9%)

Memory Bandwidth

Performance-wise, the Radeon R9 M280X should theoretically be a lot superior to the GeForce GT 340 overall. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 33600 (62%)

Texel Rate

The Radeon R9 M280X will be much (approximately 186%) more effective at AF than the GeForce GT 340. (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 32800 (186%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M280X is the winner, and very much so. (explain)

Radeon R9 M280X		14400 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 10000 (227%)

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 max amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the 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 number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.