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GeForce GT 440 3GB vs Radeon HD 4770

Intro

The GeForce GT 440 3GB has a core clock frequency of 594 MHz and a GDDR3 memory frequency of 900 MHz. It also makes use of a 192-bit bus, and makes use of a 40 nm design. It is made up of 144 SPUs, 24 Texture Address Units, and 24 ROPs.

Compare all that to the Radeon HD 4770, which has a core clock frequency of 750 MHz and a GDDR5 memory frequency of 800 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It features 640(128x5) SPUs, 32 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB 56 Watts
Radeon HD 4770 80 Watts
Difference: 24 Watts (43%)

Memory Bandwidth

In theory, the Radeon HD 4770 should perform a small bit faster than the GeForce GT 440 3GB in general. (explain)

Radeon HD 4770 51200 MB/sec
GeForce GT 440 3GB 43200 MB/sec
Difference: 8000 (19%)

Texel Rate

The Radeon HD 4770 is much (about 68%) faster with regards to anisotropic filtering than the GeForce GT 440 3GB. (explain)

Radeon HD 4770 24000 Mtexels/sec
GeForce GT 440 3GB 14256 Mtexels/sec
Difference: 9744 (68%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 440 3GB is a better choice, though not by far. (explain)

GeForce GT 440 3GB 14256 Mpixels/sec
Radeon HD 4770 12000 Mpixels/sec
Difference: 2256 (19%)

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 3GB

Amazon.com

Check prices at:

Radeon HD 4770

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 3GB Radeon HD 4770
Manufacturer nVidia AMD
Year October 2010 Apr 28, 2009
Code Name GF106 RV740
Memory 3072 MB 512 MB
Core Speed 594 MHz 750 MHz
Memory Speed 1800 MHz 3200 MHz
Power (Max TDP) 56 watts 80 watts
Bandwidth 43200 MB/sec 51200 MB/sec
Texel Rate 14256 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 144 640(128x5)
Texture Mapping Units 24 32
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 826 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 (counted in MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 are processed in one second. This is calculated by multiplying the total amount 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GT 440 3GB

Amazon.com

Check prices at:

Radeon HD 4770

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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