GeForce GTX 470 vs Radeon HD 3650 512MB

Intro

Compare those specs to the Radeon HD 3650 512MB, which uses a 55 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR3 memory works at a frequency of 800 MHz on this specific model. It features 120(24x5) SPUs along with 8 TAUs and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 512MB		78 Watts
GeForce GTX 470		215 Watts
	Difference: 137 Watts (176%)

Memory Bandwidth

Theoretically, the GeForce GTX 470 should perform a lot faster than the Radeon HD 3650 512MB overall. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 108320 (423%)

Texel Rate

The GeForce GTX 470 should be a lot (approximately 486%) more effective at AF than the Radeon HD 3650 512MB. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 28192 (486%)

Pixel Rate

The GeForce GTX 470 is a lot (more or less 737%) faster with regards to anti-aliasing than the Radeon HD 3650 512MB, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 21380 (737%)

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 bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core 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, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.