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GeForce GT 440 1.5GB vs Radeon HD 4870 2GB

Intro

The GeForce GT 440 1.5GB comes with a core clock speed of 594 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 192-bit bus, and makes use of a 40 nm design. It is comprised of 144 SPUs, 24 TAUs, and 24 ROPs.

Compare all that to the Radeon HD 4870 2GB, which comes with a core clock frequency of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also features a 256-bit bus, and makes use of a 55 nm design. It is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB 56 Watts
Radeon HD 4870 2GB 150 Watts
Difference: 94 Watts (168%)

Memory Bandwidth

Performance-wise, the Radeon HD 4870 2GB should theoretically be quite a bit superior to the GeForce GT 440 1.5GB overall. (explain)

Radeon HD 4870 2GB 115200 MB/sec
GeForce GT 440 1.5GB 43200 MB/sec
Difference: 72000 (167%)

Texel Rate

The Radeon HD 4870 2GB is quite a bit (about 110%) better at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 4870 2GB 30000 Mtexels/sec
GeForce GT 440 1.5GB 14256 Mtexels/sec
Difference: 15744 (110%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GT 440 1.5GB is a better choice, though only just barely. (explain)

GeForce GT 440 1.5GB 14256 Mpixels/sec
Radeon HD 4870 2GB 12000 Mpixels/sec
Difference: 2256 (19%)

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 4870 2GB

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 4870 2GB
Manufacturer nVidia AMD
Year October 2010 Jun 25, 2008
Code Name GF106 RV770 XT
Memory 1536 MB 2048 MB
Core Speed 594 MHz 750 MHz
Memory Speed 1800 MHz 3600 MHz
Power (Max TDP) 56 watts 150 watts
Bandwidth 43200 MB/sec 115200 MB/sec
Texel Rate 14256 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 144 800(160x5)
Texture Mapping Units 24 40
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 192-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 1170 million 956 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 information (counted in megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 440 1.5GB

Amazon.com

Check prices at:

Radeon HD 4870 2GB

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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