GeForce GT 340 1GB vs Radeon R9 380X

Intro

Compare all of that to the Radeon R9 380X, which has a core clock frequency of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
Radeon R9 380X		190 Watts
	Difference: 121 Watts (175%)

Memory Bandwidth

Theoretically, the Radeon R9 380X should be much faster than the GeForce GT 340 1GB overall. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 128000 (235%)

Texel Rate

The Radeon R9 380X is much (about 605%) more effective at anisotropic filtering than the GeForce GT 340 1GB. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 106560 (605%)

Pixel Rate

The Radeon R9 380X will be a lot (more or less 605%) more effective at AA than the GeForce GT 340 1GB, and also will be able to handle higher screen resolutions better. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GT 340 1GB		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: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.