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GeForce 940M vs Radeon HD 3470 256MB

Intro

The GeForce 940M has a core clock frequency of 1072 MHz and a DDR3 memory frequency of 1000 MHz. It also uses a 64-bit bus, and uses a 28 nm design. It is made up of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Compare those specs to the Radeon HD 3470 256MB, which has a clock frequency of 800 MHz and a DDR2 memory speed of 950 MHz. It also makes use of a 128-bit bus, and uses a 55 nm design. It is made up of 40(8x5) SPUs, 4 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 3470 256MB should theoretically 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 should be a lot (approximately 704%) faster with regards to anisotropic 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

The GeForce 940M will be quite a bit (approximately 168%) better at FSAA than the Radeon HD 3470 256MB, and will be able to handle higher resolutions without losing too much performance. (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

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.

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 data (counted in MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling 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 that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock 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 output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to 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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