GeForce 830M vs Radeon HD 3650 512MB

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
Radeon HD 3650 512MB		78 Watts
	Difference: 53 Watts (212%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 3650 512MB is 78% faster than the GeForce 830M overall, because of its higher data rate. (explain)

Radeon HD 3650 512MB		25600 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 11200 (78%)

Texel Rate

The GeForce 830M will be a lot (about 184%) faster with regards to anisotropic filtering than the Radeon HD 3650 512MB. (explain)

GeForce 830M		16464 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 10664 (184%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 830M is superior to the Radeon HD 3650 512MB, by far. (explain)

GeForce 830M		8232 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 5332 (184%)

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 data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video 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 most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.