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GeForce 830M vs Radeon HD 3470 512MB

Intro

The GeForce 830M features core speeds of 1029 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 RAM. It features 256 SPUs as well as 16 TAUs and 8 Rasterization Operator Units.

Compare all of that to the Radeon HD 3470 512MB, which has GPU core speed of 800 MHz, and 512 MB of GDDR3 RAM running at 950 MHz through a 128-bit bus. It also features 40(8x5) SPUs, 4 Texture Address Units, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 3470 512MB should perform a lot faster than the GeForce 830M in general. (explain)

Radeon HD 3470 512MB 30400 MB/sec
GeForce 830M 14400 MB/sec
Difference: 16000 (111%)

Texel Rate

The GeForce 830M is a lot (about 415%) better at AF than the Radeon HD 3470 512MB. (explain)

GeForce 830M 16464 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 13264 (415%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce 830M is a better choice, and very much so. (explain)

GeForce 830M 8232 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 5032 (157%)

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 830M

Amazon.com

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Radeon HD 3470 512MB

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 830M Radeon HD 3470 512MB
Manufacturer nVidia AMD
Year March 12 2014 2008
Code Name GM108 RV620 PRO
Memory 2048 MB 512 MB
Core Speed 1029 MHz 800 MHz
Memory Speed 1800 MHz 1900 MHz
Power (Max TDP) 25 watts (Unknown) watts
Bandwidth 14400 MB/sec 30400 MB/sec
Texel Rate 16464 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 8232 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 256 40(8x5)
Texture Mapping Units 16 4
Render Output Units 8 4
Bus Type DDR3 GDDR3
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: Bandwidth is the maximum amount of data (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 card's bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce 830M

Amazon.com

Check prices at:

Radeon HD 3470 512MB

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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