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GeForce GTX 980M vs Radeon HD 3470 256MB

Intro

The GeForce GTX 980M features a core clock frequency of 1038 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It features 1536 SPUs, 96 Texture Address Units, and 64 Raster Operation Units.

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

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 980M should be quite a bit faster than the Radeon HD 3470 256MB overall. (explain)

GeForce GTX 980M 128000 MB/sec
Radeon HD 3470 256MB 30400 MB/sec
Difference: 97600 (321%)

Texel Rate

The GeForce GTX 980M is much (more or less 3014%) better at texture filtering than the Radeon HD 3470 256MB. (explain)

GeForce GTX 980M 99648 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 96448 (3014%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 980M is a better choice, and very much so. (explain)

GeForce GTX 980M 66432 Mpixels/sec
Radeon HD 3470 256MB 3200 Mpixels/sec
Difference: 63232 (1976%)

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 GTX 980M

Amazon.com

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Radeon HD 3470 256MB

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 GTX 980M Radeon HD 3470 256MB
Manufacturer nVidia AMD
Year October 7 2014 2008
Code Name GM204 RV620 PRO
Memory 4096 MB 256 MB
Core Speed 1038 MHz 800 MHz
Memory Speed 4000 MHz 1900 MHz
Power (Max TDP) 100 watts (Unknown) watts
Bandwidth 128000 MB/sec 30400 MB/sec
Texel Rate 99648 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 66432 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 1536 40(8x5)
Texture Mapping Units 96 4
Render Output Units 64 4
Bus Type GDDR5 DDR2
Bus Width 256-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: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units 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 reach the max fill rate.

Display Prices

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GeForce GTX 980M

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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