GeForce GT 340 vs Radeon RX 470

Intro

Compare that to the Radeon RX 470, which has a clock speed of 926 MHz and a GDDR5 memory frequency of 1650 MHz. It also features a 256-bit bus, and makes use of a 14 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
Radeon RX 470		120 Watts
	Difference: 51 Watts (74%)

Memory Bandwidth

In theory, the Radeon RX 470 is 288% quicker than the GeForce GT 340 in general, due to its greater data rate. (explain)

Radeon RX 470		211200 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 156800 (288%)

Texel Rate

The Radeon RX 470 is much (approximately 573%) faster with regards to texture filtering than the GeForce GT 340. (explain)

Radeon RX 470		118528 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 100928 (573%)

Pixel Rate

The Radeon RX 470 will be quite a bit (about 573%) more effective at full screen anti-aliasing than the GeForce GT 340, and should be able to handle higher screen resolutions more effectively. (explain)

Radeon RX 470		29632 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 25232 (573%)

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 max amount of information (counted in MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses 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, High Dynamic Range and higher screen 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 number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.