GeForce GT 340 vs Radeon R9 380X

Intro

Compare all of that to the Radeon R9 380X, which features GPU core speed of 970 MHz, and 4096 MB of GDDR5 RAM set to run at 1425 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
Radeon R9 380X		190 Watts
	Difference: 121 Watts (175%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380X will be 235% faster than the GeForce GT 340 overall, due to its greater bandwidth. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 128000 (235%)

Texel Rate

The Radeon R9 380X is a lot (more or less 605%) better at anisotropic filtering than the GeForce GT 340. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 106560 (605%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 380X is a better choice, by far. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 26640 (605%)

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 data (counted in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. 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 bandwidth is, 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 can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.