GeForce GT 340 vs Radeon R9 M385X

Intro

Compare all of that to the Radeon R9 M385X, which comes with a core clock speed of 1100 MHz and a GDDR5 memory frequency of 1500 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It features 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M385X should be much faster than the GeForce GT 340 overall. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 41600 (76%)

Texel Rate

The Radeon R9 M385X should be much (about 250%) faster with regards to texture filtering than the GeForce GT 340. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 44000 (250%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M385X is superior to the GeForce GT 340, and very much so. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 13200 (300%)

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 information (counted in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 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 better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.