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GeForce 940M vs Radeon HD 3470 256MB

Intro

The GeForce 940M makes use of a 28 nm design. nVidia has clocked the core speed at 1072 MHz. The DDR3 memory is set to run at a frequency of 1000 MHz on this particular model. It features 384 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

Compare those specifications to the Radeon HD 3470 256MB, which makes use of a 55 nm design. AMD has set the core speed at 800 MHz. The DDR2 memory works at a frequency of 950 MHz on this particular model. It features 40(8x5) SPUs as well as 4 Texture Address Units and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 3470 256MB, in theory, should be much faster than the GeForce 940M in general. (explain)

Radeon HD 3470 256MB 30400 MB/sec
GeForce 940M 16000 MB/sec
Difference: 14400 (90%)

Texel Rate

The GeForce 940M is a lot (approximately 704%) more effective at texture filtering than the Radeon HD 3470 256MB. (explain)

GeForce 940M 25728 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 22528 (704%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 940M is a better choice, by far. (explain)

GeForce 940M 8576 Mpixels/sec
Radeon HD 3470 256MB 3200 Mpixels/sec
Difference: 5376 (168%)

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 940M

Amazon.com

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Radeon HD 3470 256MB

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 940M Radeon HD 3470 256MB
Manufacturer nVidia AMD
Year March 12 2015 2008
Code Name GM108 RV620 PRO
Memory 2048 MB 256 MB
Core Speed 1072 MHz 800 MHz
Memory Speed 2000 MHz 1900 MHz
Power (Max TDP) (Unknown) watts (Unknown) watts
Bandwidth 16000 MB/sec 30400 MB/sec
Texel Rate 25728 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 8576 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 384 40(8x5)
Texture Mapping Units 24 4
Render Output Units 8 4
Bus Type DDR3 DDR2
Bus Width 64-bit 128-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 2.0 x16
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the bus 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 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 number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 940M

Amazon.com

Check prices at:

Radeon HD 3470 256MB

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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