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GeForce GT 440 3GB vs Radeon HD 4750

Intro

The GeForce GT 440 3GB has a GPU core speed of 594 MHz, and the 3072 MB of GDDR3 memory runs at 900 MHz through a 192-bit bus. It also is made up of 144 Stream Processors, 24 TAUs, and 24 ROPs.

Compare all of that to the Radeon HD 4750, which features a clock speed of 730 MHz and a GDDR5 memory speed of 800 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It is made up of 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 4750 75 Watts
Difference: 19 Watts (34%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4750 will be 19% quicker than the GeForce GT 440 3GB overall, because of its greater bandwidth. (explain)

Radeon HD 4750 51200 MB/sec
GeForce GT 440 3GB 43200 MB/sec
Difference: 8000 (19%)

Texel Rate

The Radeon HD 4750 will be quite a bit (approximately 64%) better at texture filtering than the GeForce GT 440 3GB. (explain)

Radeon HD 4750 23360 Mtexels/sec
GeForce GT 440 3GB 14256 Mtexels/sec
Difference: 9104 (64%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 440 3GB is a better choice, by a large margin. (explain)

GeForce GT 440 3GB 14256 Mpixels/sec
Radeon HD 4750 11680 Mpixels/sec
Difference: 2576 (22%)

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 4750

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 4750
Manufacturer nVidia AMD
Year October 2010
Code Name GF106 RV740
Memory 3072 MB 512 MB
Core Speed 594 MHz 730 MHz
Memory Speed 1800 MHz 3200 MHz
Power (Max TDP) 56 watts 75 watts
Bandwidth 43200 MB/sec 51200 MB/sec
Texel Rate 14256 Mtexels/sec 23360 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 11680 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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 reach the max fill rate.

Display Prices

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GeForce GT 440 3GB

Amazon.com

Check prices at:

Radeon HD 4750

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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