GeForce GT 340 1GB vs Radeon HD 5830

Intro

Compare those specifications to the Radeon HD 5830, which uses a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this particular card. It features 1120(224x5) SPUs along with 56 TAUs and 16 Rasterization Operator 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

Performance-wise, the Radeon HD 5830 should in theory be a lot better than the GeForce GT 340 1GB overall. (explain)

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

Texel Rate

The Radeon HD 5830 should be a lot (about 155%) better at anisotropic 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 FSAA than the GeForce GT 340 1GB, and should be able to handle higher resolutions without slowing down too much. (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 maximum amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.