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GeForce GT 440 1.5GB vs Radeon HD 6790

Intro

The GeForce GT 440 1.5GB features a GPU core clock speed of 594 MHz, and the 1536 MB of GDDR3 RAM runs at 900 MHz through a 192-bit bus. It also features 144 Stream Processors, 24 TAUs, and 24 Raster Operation Units.

Compare those specs to the Radeon HD 6790, which features core clock speeds of 840 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 memory. It features 800 SPUs along with 40 TAUs and 16 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 6790 2150 points
GeForce GT 440 1.5GB 840 points
Difference: 1310 (156%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB 56 Watts
Radeon HD 6790 150 Watts
Difference: 94 Watts (168%)

Memory Bandwidth

In theory, the Radeon HD 6790 should be 211% faster than the GeForce GT 440 1.5GB in general, because of its higher bandwidth. (explain)

Radeon HD 6790 134400 MB/sec
GeForce GT 440 1.5GB 43200 MB/sec
Difference: 91200 (211%)

Texel Rate

The Radeon HD 6790 is a lot (about 136%) more effective at AF than the GeForce GT 440 1.5GB. (explain)

Radeon HD 6790 33600 Mtexels/sec
GeForce GT 440 1.5GB 14256 Mtexels/sec
Difference: 19344 (136%)

Pixel Rate

The GeForce GT 440 1.5GB should be a small bit (approximately 6%) faster with regards to anti-aliasing than the Radeon HD 6790, and able to handle higher resolutions without losing too much performance. (explain)

GeForce GT 440 1.5GB 14256 Mpixels/sec
Radeon HD 6790 13440 Mpixels/sec
Difference: 816 (6%)

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

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Radeon HD 6790

Amazon.com

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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 6790
Manufacturer nVidia AMD
Year October 2010 April 2011
Code Name GF106 Barts LE
Memory 1536 MB 1024 MB
Core Speed 594 MHz 840 MHz
Memory Speed 1800 MHz 4200 MHz
Power (Max TDP) 56 watts 150 watts
Bandwidth 43200 MB/sec 134400 MB/sec
Texel Rate 14256 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 14256 Mpixels/sec 13440 Mpixels/sec
Unified Shaders 144 800
Texture Mapping Units 24 40
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 192-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 1700 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 transferred across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GT 440 1.5GB

Amazon.com

Check prices at:

Radeon HD 6790

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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