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GeForce GT 440 1.5GB vs Radeon HD 4750

Intro

The GeForce GT 440 1.5GB features a GPU clock speed of 594 MHz, and the 1536 MB of GDDR3 memory is set to run at 900 MHz through a 192-bit bus. It also is comprised of 144 SPUs, 24 Texture Address Units, and 24 Raster Operation Units.

Compare all that to the Radeon HD 4750, which comes with clock speeds of 730 MHz on the GPU, and 800 MHz on the 512 MB of GDDR5 memory. It features 640(128x5) SPUs along with 32 Texture Address Units 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 4750 75 Watts
Difference: 19 Watts (34%)

Memory Bandwidth

The Radeon HD 4750 should in theory be a little bit faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon HD 4750 51200 MB/sec
GeForce GT 440 1.5GB 43200 MB/sec
Difference: 8000 (19%)

Texel Rate

The Radeon HD 4750 is much (approximately 64%) faster with regards to texture filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 4750 23360 Mtexels/sec
GeForce GT 440 1.5GB 14256 Mtexels/sec
Difference: 9104 (64%)

Pixel Rate

The GeForce GT 440 1.5GB is quite a bit (more or less 22%) faster with regards to anti-aliasing than the Radeon HD 4750, and also should be capable of handling higher resolutions while still performing well. (explain)

GeForce GT 440 1.5GB 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 1.5GB

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 1.5GB Radeon HD 4750
Manufacturer nVidia AMD
Year October 2010
Code Name GF106 RV740
Memory 1536 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 max amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GT 440 1.5GB

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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