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GeForce GT 440 1.5GB vs Radeon HD 6770 1GB

Intro

The GeForce GT 440 1.5GB features a GPU core clock speed of 594 MHz, and the 1536 MB of GDDR3 RAM is set to run at 900 MHz through a 192-bit bus. It also features 144 SPUs, 24 TAUs, and 24 ROPs.

Compare that to the Radeon HD 6770 1GB, which makes use of a 40 nm design. AMD has set the core speed at 900 MHz. The GDDR5 memory works at a speed of 1050 MHz on this specific model. It features 800 SPUs along with 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 6770 1GB 108 Watts
Difference: 52 Watts (93%)

Memory Bandwidth

Theoretically, the Radeon HD 6770 1GB should perform much faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon HD 6770 1GB 67200 MB/sec
GeForce GT 440 1.5GB 43200 MB/sec
Difference: 24000 (56%)

Texel Rate

The Radeon HD 6770 1GB should be quite a bit (approximately 153%) more effective at texture filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 6770 1GB 36000 Mtexels/sec
GeForce GT 440 1.5GB 14256 Mtexels/sec
Difference: 21744 (153%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6770 1GB is superior to the GeForce GT 440 1.5GB, but only just. (explain)

Radeon HD 6770 1GB 14400 Mpixels/sec
GeForce GT 440 1.5GB 14256 Mpixels/sec
Difference: 144 (1%)

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 6770 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 6770 1GB
Manufacturer nVidia AMD
Year October 2010 January 2011
Code Name GF106 Juniper XT
Memory 1536 MB 1024 MB
Core Speed 594 MHz 900 MHz
Memory Speed 1800 MHz 4200 MHz
Power (Max TDP) 56 watts 108 watts
Bandwidth 43200 MB/sec 67200 MB/sec
Texel Rate 14256 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 144 800
Texture Mapping Units 24 40
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 1040 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory 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 6770 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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