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GeForce GT 440 1.5GB vs Radeon HD 4890 2GB

Intro

The GeForce GT 440 1.5GB comes with a core clock frequency of 594 MHz and a GDDR3 memory speed of 900 MHz. It also makes use of a 192-bit bus, and uses a 40 nm design. It is comprised of 144 SPUs, 24 Texture Address Units, and 24 ROPs.

Compare that to the Radeon HD 4890 2GB, which features a core clock frequency of 1000 MHz and a GDDR5 memory speed of 975 MHz. It also makes use of a 256-bit bus, and makes use of a 55 nm design. It is made up of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

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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

The Radeon HD 4890 2GB should in theory perform a lot 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 should be much (approximately 181%) more effective at anisotropic 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 should be just a bit (more or less 12%) better at full screen anti-aliasing than the GeForce GT 440 1.5GB, and should be capable of handling higher screen resolutions while still performing well. (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 information (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 can be processed in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach 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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