GeForce GT 340 1GB vs Radeon HD 3650

Intro

Compare those specifications to the Radeon HD 3650, which uses a 55 nm design. AMD has set the core speed at 725 MHz. The GDDR4 memory works at a frequency of 800 MHz on this particular model. It features 120(24x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
Radeon HD 3650		78 Watts
	Difference: 9 Watts (13%)

Memory Bandwidth

The GeForce GT 340 1GB should theoretically be much faster than the Radeon HD 3650 in general. (explain)

GeForce GT 340 1GB		54400 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 28800 (113%)

Texel Rate

The GeForce GT 340 1GB will be quite a bit (more or less 203%) more effective at AF than the Radeon HD 3650. (explain)

GeForce GT 340 1GB		17600 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 11800 (203%)

Pixel Rate

The GeForce GT 340 1GB should be much (approximately 52%) faster with regards to FSAA than the Radeon HD 3650, and capable of handling higher resolutions without losing too much performance. (explain)

GeForce GT 340 1GB		4400 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 1500 (52%)

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 max amount of data (measured in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.