GeForce GT 340 1GB vs Radeon HD 5830

Intro

Compare those specs to the Radeon HD 5830, which has GPU core speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 256-bit bus. It also is made up of 1120(224x5) Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
Radeon HD 5830		175 Watts
	Difference: 106 Watts (154%)

Memory Bandwidth

In theory, the Radeon HD 5830 is 135% quicker than the GeForce GT 340 1GB in general, due to its higher bandwidth. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 73600 (135%)

Texel Rate

The Radeon HD 5830 will be quite a bit (approximately 155%) faster with regards to texture filtering than the GeForce GT 340 1GB. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 27200 (155%)

Pixel Rate

The Radeon HD 5830 is a lot (more or less 191%) faster with regards to anti-aliasing than the GeForce GT 340 1GB, and should be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 8400 (191%)

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 MB 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 speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics 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 number of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.