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GeForce GT 440 3GB vs Radeon HD 3850 256MB

Intro

The GeForce GT 440 3GB comes with a clock frequency of 594 MHz and a GDDR3 memory speed of 900 MHz. It also makes use of a 192-bit bus, and uses a 40 nm design. It is made up of 144 SPUs, 24 TAUs, and 24 Raster Operation Units.

Compare those specs to the Radeon HD 3850 256MB, which has a core clock frequency of 668 MHz and a GDDR3 memory speed of 828 MHz. It also features a 256-bit memory bus, and uses a 55 nm design. It features 320(64x5) SPUs, 16 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB 56 Watts
Radeon HD 3850 256MB 75 Watts
Difference: 19 Watts (34%)

Memory Bandwidth

In theory, the Radeon HD 3850 256MB should be 23% quicker than the GeForce GT 440 3GB in general, due to its higher data rate. (explain)

Radeon HD 3850 256MB 52992 MB/sec
GeForce GT 440 3GB 43200 MB/sec
Difference: 9792 (23%)

Texel Rate

The GeForce GT 440 3GB will be a lot (about 33%) more effective at anisotropic filtering than the Radeon HD 3850 256MB. (explain)

GeForce GT 440 3GB 14256 Mtexels/sec
Radeon HD 3850 256MB 10688 Mtexels/sec
Difference: 3568 (33%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GT 440 3GB is a better choice, by a large margin. (explain)

GeForce GT 440 3GB 14256 Mpixels/sec
Radeon HD 3850 256MB 10688 Mpixels/sec
Difference: 3568 (33%)

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

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GeForce GT 440 3GB

Amazon.com

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Radeon HD 3850 256MB

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GT 440 3GB Radeon HD 3850 256MB
Manufacturer nVidia AMD
Year October 2010 Nov 19, 2007
Code Name GF106 RV670 PRO
Memory 3072 MB 256 MB
Core Speed 594 MHz 668 MHz
Memory Speed 1800 MHz 1656 MHz
Power (Max TDP) 56 watts 75 watts
Bandwidth 43200 MB/sec 52992 MB/sec
Texel Rate 14256 Mtexels/sec 10688 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 10688 Mpixels/sec
Unified Shaders 144 320(64x5)
Texture Mapping Units 24 16
Render Output Units 24 16
Bus Type GDDR3 GDDR3
Bus Width 192-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 1170 million (Unknown) million
Bus PCIe x16 PCIe 2.0 x16/AGP 8x
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, 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 maximum number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core 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 fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GT 440 3GB

Amazon.com

Check prices at:

Radeon HD 3850 256MB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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