GeForce GTX 460 vs Radeon HD 3650 512MB

Intro

Compare that to the Radeon HD 3650 512MB, which has a clock frequency of 725 MHz and a GDDR3 memory speed of 800 MHz. It also makes use of a 128-bit memory bus, and uses a 55 nm design. It is made up of 120(24x5) SPUs, 8 Texture Address Units, and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 512MB		78 Watts
GeForce GTX 460		150 Watts
	Difference: 72 Watts (92%)

Memory Bandwidth

The GeForce GTX 460 should theoretically perform a lot faster than the Radeon HD 3650 512MB overall. (explain)

GeForce GTX 460		86400 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 60800 (238%)

Texel Rate

The GeForce GTX 460 will be a lot (more or less 552%) faster with regards to texture filtering than the Radeon HD 3650 512MB. (explain)

GeForce GTX 460		37800 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 32000 (552%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 460 is a better choice, by a large margin. (explain)

GeForce GTX 460		16200 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 13300 (459%)

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 data (in units of MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.