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GeForce GT 440 3GB vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GT 440 3GB comes with a GPU clock speed of 594 MHz, and the 3072 MB of GDDR3 RAM runs at 900 MHz through a 192-bit bus. It also is comprised of 144 SPUs, 24 TAUs, and 24 ROPs.

Compare those specifications to the Radeon HD 6450 (OEM) 1GB, which features core clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 160 SPUs along with 8 Texture Address Units and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GT 440 3GB 56 Watts
Difference: 25 Watts (81%)

Memory Bandwidth

In theory, the GeForce GT 440 3GB should perform much faster than the Radeon HD 6450 (OEM) 1GB overall. (explain)

GeForce GT 440 3GB 43200 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 14400 (50%)

Texel Rate

The GeForce GT 440 3GB is much (about 138%) better at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GT 440 3GB 14256 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 8256 (138%)

Pixel Rate

The GeForce GT 440 3GB is quite a bit (more or less 375%) better at FSAA than the Radeon HD 6450 (OEM) 1GB, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GT 440 3GB 14256 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 11256 (375%)

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 6450 (OEM) 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 3GB Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year October 2010 February 2011
Code Name GF106 Caicos
Memory 3072 MB 1024 MB
Core Speed 594 MHz 750 MHz
Memory Speed 1800 MHz 3600 MHz
Power (Max TDP) 56 watts 31 watts
Bandwidth 43200 MB/sec 28800 MB/sec
Texel Rate 14256 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 144 160
Texture Mapping Units 24 8
Render Output Units 24 4
Bus Type GDDR3 GDDR5
Bus Width 192-bit 64-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 370 million
Bus PCIe x16 PCIe 2.1 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 megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 440 3GB

Amazon.com

Check prices at:

Radeon HD 6450 (OEM) 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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