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GeForce GT 440 1.5GB vs Radeon HD 3650 512MB

Intro

The GeForce GT 440 1.5GB uses a 40 nm design. nVidia has set the core speed at 594 MHz. The GDDR3 memory works at a frequency of 900 MHz on this card. It features 144 SPUs as well as 24 Texture Address Units and 24 Rasterization Operator Units.

Compare those specifications to the Radeon HD 3650 512MB, which makes use of a 55 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR3 RAM is set to run at a speed of 800 MHz on this specific card. It features 120(24x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB 56 Watts
Radeon HD 3650 512MB 78 Watts
Difference: 22 Watts (39%)

Memory Bandwidth

As far as performance goes, the GeForce GT 440 1.5GB should in theory be a lot better than the Radeon HD 3650 512MB overall. (explain)

GeForce GT 440 1.5GB 43200 MB/sec
Radeon HD 3650 512MB 25600 MB/sec
Difference: 17600 (69%)

Texel Rate

The GeForce GT 440 1.5GB will be much (approximately 146%) faster with regards to anisotropic filtering than the Radeon HD 3650 512MB. (explain)

GeForce GT 440 1.5GB 14256 Mtexels/sec
Radeon HD 3650 512MB 5800 Mtexels/sec
Difference: 8456 (146%)

Pixel Rate

The GeForce GT 440 1.5GB should be much (about 392%) more effective at full screen anti-aliasing than the Radeon HD 3650 512MB, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GT 440 1.5GB 14256 Mpixels/sec
Radeon HD 3650 512MB 2900 Mpixels/sec
Difference: 11356 (392%)

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 3650 512MB

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 3650 512MB
Manufacturer nVidia AMD
Year October 2010 2008
Code Name GF106 RV635 PRO
Memory 1536 MB 512 MB
Core Speed 594 MHz 725 MHz
Memory Speed 1800 MHz 1600 MHz
Power (Max TDP) 56 watts 78 watts
Bandwidth 43200 MB/sec 25600 MB/sec
Texel Rate 14256 Mtexels/sec 5800 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 2900 Mpixels/sec
Unified Shaders 144 120(24x5)
Texture Mapping Units 24 8
Render Output Units 24 4
Bus Type GDDR3 GDDR3
Bus Width 192-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 1170 million (Unknown) million
Bus PCIe x16 PCIe 2.0 x16/AGP 8x
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units of the card by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably 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 1.5GB

Amazon.com

Check prices at:

Radeon HD 3650 512MB

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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