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GeForce GT 440 1.5GB vs Radeon HD 3870 X2 1GB

Intro

The GeForce GT 440 1.5GB makes use of a 40 nm design. nVidia has clocked the core speed at 594 MHz. The GDDR3 memory works at a frequency of 900 MHz on this model. It features 144 SPUs along with 24 TAUs and 24 ROPs.

Compare those specifications to the Radeon HD 3870 X2 1GB, which features a core clock speed of 825 MHz and a GDDR4 memory frequency of 1126 MHz. It also makes use of a 256-bit bus, and uses a 55 nm design. It is made up of 320(64x5) SPUs, 16 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon HD 3870 X2 1GB should in theory be much superior to the GeForce GT 440 1.5GB overall. (explain)

Radeon HD 3870 X2 1GB 144128 MB/sec
GeForce GT 440 1.5GB 43200 MB/sec
Difference: 100928 (234%)

Texel Rate

The Radeon HD 3870 X2 1GB should be quite a bit (more or less 85%) more effective at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 3870 X2 1GB 26400 Mtexels/sec
GeForce GT 440 1.5GB 14256 Mtexels/sec
Difference: 12144 (85%)

Pixel Rate

The Radeon HD 3870 X2 1GB is a lot (about 85%) faster with regards to full screen anti-aliasing than the GeForce GT 440 1.5GB, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 3870 X2 1GB 26400 Mpixels/sec
GeForce GT 440 1.5GB 14256 Mpixels/sec
Difference: 12144 (85%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GT 440 1.5GB

Amazon.com

Check prices at:

Radeon HD 3870 X2 1GB

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.

Specifications

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Model GeForce GT 440 1.5GB Radeon HD 3870 X2 1GB
Manufacturer nVidia AMD
Year October 2010 Jan 28, 2008
Code Name GF106 R680
Memory 1536 MB 1024 MB (x2)
Core Speed 594 MHz 825 MHz (x2)
Memory Speed 1800 MHz 2252 MHz (x2)
Power (Max TDP) 56 watts (Unknown) watts
Bandwidth 43200 MB/sec 144128 MB/sec
Texel Rate 14256 Mtexels/sec 26400 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 26400 Mpixels/sec
Unified Shaders 144 320(64x5) (x2)
Texture Mapping Units 24 16 (x2)
Render Output Units 24 16 (x2)
Bus Type GDDR3 GDDR4
Bus Width 192-bit 256-bit (x2)
Fab Process 40 nm 55 nm
Transistors 1170 million (Unknown) million
Bus PCIe x16 PCIe 2.0 x16/(internal PCIe 1.1 x16)
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, 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 that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units 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 output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 440 1.5GB

Amazon.com

Check prices at:

Radeon HD 3870 X2 1GB

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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