GeForce GTX 650 Ti 2GB vs Radeon HD 3850 256MB

Intro

Compare all that to the Radeon HD 3850 256MB, which has a GPU core clock speed of 668 MHz, and 256 MB of GDDR3 RAM running at 828 MHz through a 256-bit bus. It also is made up of 320(64x5) Stream Processors, 16 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3850 256MB		75 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 35 Watts (47%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 Ti 2GB should in theory be a lot superior to the Radeon HD 3850 256MB overall. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
Radeon HD 3850 256MB		52992 MB/sec
	Difference: 33408 (63%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be a lot (more or less 456%) faster with regards to texture filtering than the Radeon HD 3850 256MB. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
Radeon HD 3850 256MB		10688 Mtexels/sec
	Difference: 48704 (456%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 650 Ti 2GB is the winner, by a large margin. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
Radeon HD 3850 256MB		10688 Mpixels/sec
	Difference: 4160 (39%)

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 (in units of megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core clock 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 applied per 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. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.