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GeForce 830M vs GeForce GTX 295

Intro

The GeForce 830M makes use of a 28 nm design. nVidia has set the core speed at 1029 MHz. The DDR3 memory works at a speed of 900 MHz on this particular card. It features 256 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare those specs to the GeForce GTX 295, which comes with GPU core speed of 576 MHz, and 896 MB of GDDR3 memory running at 999 MHz through a 448-bit bus. It also features 240 SPUs, 80 Texture Address Units, and 28 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M 25 Watts
GeForce GTX 295 289 Watts
Difference: 264 Watts (1056%)

Memory Bandwidth

The GeForce GTX 295 should in theory be quite a bit faster than the GeForce 830M in general. (explain)

GeForce GTX 295 223776 MB/sec
GeForce 830M 14400 MB/sec
Difference: 209376 (1454%)

Texel Rate

The GeForce GTX 295 is a lot (approximately 460%) better at AF than the GeForce 830M. (explain)

GeForce GTX 295 92160 Mtexels/sec
GeForce 830M 16464 Mtexels/sec
Difference: 75696 (460%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 295 is the winner, by a large margin. (explain)

GeForce GTX 295 32256 Mpixels/sec
GeForce 830M 8232 Mpixels/sec
Difference: 24024 (292%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce 830M

Amazon.com

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GeForce GTX 295

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 GTX 295
Manufacturer nVidia nVidia
Year March 12 2014 January 8, 2009
Code Name GM108 G200b
Memory 2048 MB 896 MB (x2)
Core Speed 1029 MHz 576 MHz (x2)
Memory Speed 1800 MHz 1998 MHz (x2)
Power (Max TDP) 25 watts 289 watts
Bandwidth 14400 MB/sec 223776 MB/sec
Texel Rate 16464 Mtexels/sec 92160 Mtexels/sec
Pixel Rate 8232 Mpixels/sec 32256 Mpixels/sec
Unified Shaders 256 240 (x2)
Texture Mapping Units 16 80 (x2)
Render Output Units 8 28 (x2)
Bus Type DDR3 GDDR3
Bus Width 64-bit 448-bit (x2)
Fab Process 28 nm 55 nm
Transistors (Unknown) million 1400 million
Bus PCIe 3.0 x16 PCIe x16 2.0
DirectX Version DirectX 12 DirectX 10
OpenGL Version OpenGL 4.5 OpenGL 3.1

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 830M

Amazon.com

Check prices at:

GeForce GTX 295

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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