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GeForce GT 440 1.5GB vs Radeon HD 4890 1GB

Intro

The GeForce GT 440 1.5GB has a GPU core speed of 594 MHz, and the 1536 MB of GDDR3 memory runs at 900 MHz through a 192-bit bus. It also is comprised of 144 SPUs, 24 TAUs, and 24 Raster Operation Units.

Compare all that to the Radeon HD 4890 1GB, which comes with a clock speed of 1000 MHz and a GDDR5 memory frequency of 975 MHz. It also uses a 256-bit bus, and makes use of a 55 nm design. It features 800(160x5) SPUs, 40 TAUs, and 16 ROPs.

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 1GB 190 Watts
Difference: 134 Watts (239%)

Memory Bandwidth

The Radeon HD 4890 1GB, in theory, should perform a lot faster than the GeForce GT 440 1.5GB overall. (explain)

Radeon HD 4890 1GB 124800 MB/sec
GeForce GT 440 1.5GB 43200 MB/sec
Difference: 81600 (189%)

Texel Rate

The Radeon HD 4890 1GB will be a lot (approximately 181%) better at texture filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 4890 1GB 40000 Mtexels/sec
GeForce GT 440 1.5GB 14256 Mtexels/sec
Difference: 25744 (181%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 4890 1GB is the winner, but it probably won't make a huge difference. (explain)

Radeon HD 4890 1GB 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

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Radeon HD 4890 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 4890 1GB
Manufacturer nVidia AMD
Year October 2010 Apr 2, 2009
Code Name GF106 RV790 XT
Memory 1536 MB 1024 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 information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the card will be at 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 could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GT 440 1.5GB

Amazon.com

Check prices at:

Radeon HD 4890 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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