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GeForce 830M vs GeForce GT 310

Intro

The GeForce 830M has 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 Texture Address Units and 8 Rasterization Operator Units.

Compare those specs to the GeForce GT 310, which features a clock speed of 589 MHz and a DDR2 memory frequency of 1000 MHz. It also makes use of a 64-bit memory bus, and makes use of a 40 nm design. It is comprised of 16 SPUs, 8 Texture Address Units, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M 25 Watts
GeForce GT 310 31 Watts
Difference: 6 Watts (24%)

Memory Bandwidth

As far as performance goes, the GeForce GT 310 should theoretically be a bit superior to the GeForce 830M overall. (explain)

GeForce GT 310 16000 MB/sec
GeForce 830M 14400 MB/sec
Difference: 1600 (11%)

Texel Rate

The GeForce 830M should be quite a bit (more or less 249%) better at anisotropic filtering than the GeForce GT 310. (explain)

GeForce 830M 16464 Mtexels/sec
GeForce GT 310 4712 Mtexels/sec
Difference: 11752 (249%)

Pixel Rate

The GeForce 830M will be much (about 249%) faster with regards to anti-aliasing than the GeForce GT 310, and also capable of handling higher resolutions without losing too much performance. (explain)

GeForce 830M 8232 Mpixels/sec
GeForce GT 310 2356 Mpixels/sec
Difference: 5876 (249%)

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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GeForce GT 310

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 830M GeForce GT 310
Manufacturer nVidia nVidia
Year March 12 2014 November 2009
Code Name GM108 GT218
Memory 2048 MB 512 MB
Core Speed 1029 MHz 589 MHz
Memory Speed 1800 MHz 2000 MHz
Power (Max TDP) 25 watts 31 watts
Bandwidth 14400 MB/sec 16000 MB/sec
Texel Rate 16464 Mtexels/sec 4712 Mtexels/sec
Pixel Rate 8232 Mpixels/sec 2356 Mpixels/sec
Unified Shaders 256 16
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type DDR3 DDR2
Bus Width 64-bit 64-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 260 million
Bus PCIe 3.0 x16 PCIe 2.0
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.1

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the 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:

GeForce GT 310

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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