GeForce GTX 750 vs Radeon HD 3850 256MB

Intro

Compare those specifications to the Radeon HD 3850 256MB, which makes use of a 55 nm design. AMD has clocked the core speed at 668 MHz. The GDDR3 memory runs at a speed of 828 MHz on this specific card. It features 320(64x5) SPUs along with 16 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon HD 3850 256MB		75 Watts
	Difference: 20 Watts (36%)

Memory Bandwidth

The GeForce GTX 750 should in theory perform a lot faster than the Radeon HD 3850 256MB in general. (explain)

GeForce GTX 750		80000 MB/sec
Radeon HD 3850 256MB		52992 MB/sec
	Difference: 27008 (51%)

Texel Rate

The GeForce GTX 750 is a lot (approximately 205%) faster with regards to texture filtering than the Radeon HD 3850 256MB. (explain)

GeForce GTX 750		32640 Mtexels/sec
Radeon HD 3850 256MB		10688 Mtexels/sec
	Difference: 21952 (205%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 750 is the winner, and very much so. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon HD 3850 256MB		10688 Mpixels/sec
	Difference: 5632 (53%)

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 information (in units of MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.