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

Intro

The GeForce GT 440 1.5GB has core speeds of 594 MHz on the GPU, and 900 MHz on the 1536 MB of GDDR3 RAM. It features 144 SPUs along with 24 Texture Address Units and 24 ROPs.

Compare those specifications to the Radeon HD 3870 X2 1GB, which features core clock speeds of 825 MHz on the GPU, and 1126 MHz on the 1024 MB of GDDR4 memory. It features 320(64x5) SPUs along with 16 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 3870 X2 1GB is 234% faster than the GeForce GT 440 1.5GB in general, due to its higher bandwidth. (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 a lot (more or less 85%) faster with regards to 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 will be quite a bit (about 85%) more effective at full screen anti-aliasing than the GeForce GT 440 1.5GB, and will be able to handle higher 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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video 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 maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max 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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