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GeForce GT 440 1.5GB vs Radeon HD 4890 2GB

Intro

The GeForce GT 440 1.5GB makes use of a 40 nm design. nVidia has set the core frequency at 594 MHz. The GDDR3 memory is set to run at a speed of 900 MHz on this particular model. It features 144 SPUs as well as 24 TAUs and 24 ROPs.

Compare those specifications to the Radeon HD 4890 2GB, which uses a 55 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory runs at a speed of 975 MHz on this card. It features 800(160x5) SPUs as well as 40 TAUs and 16 Rasterization Operator 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

In theory, the Radeon HD 4890 2GB should perform a lot faster than the GeForce GT 440 1.5GB overall. (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 a lot (about 181%) more effective 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

The Radeon HD 4890 2GB is a bit (more or less 12%) better at anti-aliasing than the GeForce GT 440 1.5GB, and also able to handle higher screen resolutions without slowing down too much. (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 max amount of data (measured in MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per 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 clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum 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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