GeForce GT 340 vs Radeon R9 380 4G

Intro

Compare those specs to the Radeon R9 380 4G, which comes with core speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 1792 SPUs along with 112 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
Radeon R9 380 4G		190 Watts
	Difference: 121 Watts (175%)

Memory Bandwidth

Theoretically, the Radeon R9 380 4G should be a lot faster than the GeForce GT 340 overall. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 128000 (235%)

Texel Rate

The Radeon R9 380 4G will be a lot (more or less 517%) better at texture filtering than the GeForce GT 340. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 91040 (517%)

Pixel Rate

The Radeon R9 380 4G will be quite a bit (about 605%) faster with regards to full screen anti-aliasing than the GeForce GT 340, and also will be able to handle higher resolutions more effectively. (explain)

Radeon R9 380 4G		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 maximum amount of information (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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