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GeForce 930M vs GeForce GT 315

Intro

The GeForce 930M features core speeds of 928 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

Compare all of that to the GeForce GT 315, which features a GPU core clock speed of 625 MHz, and 512 MB of DDR3 memory set to run at 790 MHz through a 128-bit bus. It also features 48 Stream Processors, 16 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GT 315 is 76% faster than the GeForce 930M in general, because of its higher bandwidth. (explain)

GeForce GT 315 25280 MB/sec
GeForce 930M 14400 MB/sec
Difference: 10880 (76%)

Texel Rate

The GeForce 930M is much (about 123%) better at AF than the GeForce GT 315. (explain)

GeForce 930M 22272 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 12272 (123%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 930M is the winner, and very much so. (explain)

GeForce 930M 7424 Mpixels/sec
GeForce GT 315 5000 Mpixels/sec
Difference: 2424 (48%)

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 930M

Amazon.com

Check prices at:

GeForce GT 315

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 930M GeForce GT 315
Manufacturer nVidia nVidia
Year March 12 2015 November 2009
Code Name GM108 GT216
Memory 2048 MB 512 MB
Core Speed 928 MHz 625 MHz
Memory Speed 1800 MHz 1580 MHz
Power (Max TDP) (Unknown) watts 52 watts
Bandwidth 14400 MB/sec 25280 MB/sec
Texel Rate 22272 Mtexels/sec 10000 Mtexels/sec
Pixel Rate 7424 Mpixels/sec 5000 Mpixels/sec
Unified Shaders 384 48
Texture Mapping Units 24 16
Render Output Units 8 8
Bus Type DDR3 DDR3
Bus Width 64-bit 128-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 486 million
Bus PCIe 3.0 x16 PCIe 2.0
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out 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 drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce 930M

Amazon.com

Check prices at:

GeForce GT 315

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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