GeForce GT 1030 vs Radeon HD 3650 256MB

Intro

Compare those specifications to the Radeon HD 3650 256MB, which has a core clock frequency of 725 MHz and a DDR2 memory speed of 800 MHz. It also uses a 128-bit memory bus, and makes use of a 55 nm design. It features 120(24x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
Radeon HD 3650 256MB		78 Watts
	Difference: 48 Watts (160%)

Memory Bandwidth

The GeForce GT 1030, in theory, should perform much faster than the Radeon HD 3650 256MB overall. (explain)

GeForce GT 1030		49152 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 23552 (92%)

Texel Rate

The GeForce GT 1030 should be a lot (more or less 598%) better at texture filtering than the Radeon HD 3650 256MB. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 34680 (598%)

Pixel Rate

The GeForce GT 1030 should be a lot (approximately 598%) more effective at full screen anti-aliasing than the Radeon HD 3650 256MB, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 17340 (598%)

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 max amount of data (in units of megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses 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 amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling 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 can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.