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GeForce GT 440 1.5GB vs Radeon HD 4890 2GB

Intro

The GeForce GT 440 1.5GB uses 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 card. It features 144 SPUs along with 24 Texture Address Units and 24 ROPs.

Compare all that to the Radeon HD 4890 2GB, which has GPU clock speed of 1000 MHz, and 2048 MB of GDDR5 RAM set to run at 975 MHz through a 256-bit bus. It also is made up of 800(160x5) Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB 56 Watts
Radeon HD 4890 2GB 190 Watts
Difference: 134 Watts (239%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4890 2GB should perform much faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon HD 4890 2GB 124800 MB/sec
GeForce GT 440 1.5GB 43200 MB/sec
Difference: 81600 (189%)

Texel Rate

The Radeon HD 4890 2GB is much (about 181%) better at texture filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 4890 2GB 40000 Mtexels/sec
GeForce GT 440 1.5GB 14256 Mtexels/sec
Difference: 25744 (181%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 4890 2GB is the winner, but only just. (explain)

Radeon HD 4890 2GB 16000 Mpixels/sec
GeForce GT 440 1.5GB 14256 Mpixels/sec
Difference: 1744 (12%)

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 1.5GB

Amazon.com

Check prices at:

Radeon HD 4890 2GB

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 4890 2GB
Manufacturer nVidia AMD
Year October 2010 Apr 2, 2009
Code Name GF106 RV790 XT
Memory 1536 MB 2048 MB
Core Speed 594 MHz 1000 MHz
Memory Speed 1800 MHz 3900 MHz
Power (Max TDP) 56 watts 190 watts
Bandwidth 43200 MB/sec 124800 MB/sec
Texel Rate 14256 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 144 800(160x5)
Texture Mapping Units 24 40
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 192-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 1170 million 959 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called 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, most notably the memory bandwidth of the card - 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 4890 2GB

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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