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GeForce GT 315 vs GeForce GT 430

Intro

The GeForce GT 315 has a GPU core clock speed of 625 MHz, and the 512 MB of DDR3 memory is set to run at 790 MHz through a 128-bit bus. It also is comprised of 48 Stream Processors, 16 Texture Address Units, and 8 ROPs.

Compare all of that to the GeForce GT 430, which makes use of a 40 nm design. nVidia has clocked the core speed at 700 MHz. The GDDR3 memory is set to run at a frequency of 900 MHz on this model. It features 96 SPUs as well as 16 Texture Address Units and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315 52 Watts
GeForce GT 430 60 Watts
Difference: 8 Watts (15%)

Memory Bandwidth

The GeForce GT 430 should theoretically be a small bit faster than the GeForce GT 315 in general. (explain)

GeForce GT 430 28800 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 3520 (14%)

Texel Rate

The GeForce GT 430 is a bit (approximately 12%) better at anisotropic filtering than the GeForce GT 315. (explain)

GeForce GT 430 11200 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 1200 (12%)

Pixel Rate

The GeForce GT 315 should be much (about 79%) faster with regards to full screen anti-aliasing than the GeForce GT 430, and able to handle higher screen resolutions while still performing well. (explain)

GeForce GT 315 5000 Mpixels/sec
GeForce GT 430 2800 Mpixels/sec
Difference: 2200 (79%)

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 GT 315

Amazon.com

Check prices at:

GeForce GT 430

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 GT 315 GeForce GT 430
Manufacturer nVidia nVidia
Year November 2009 October 2010
Code Name GT216 GF108
Memory 512 MB 512 MB
Core Speed 625 MHz 700 MHz
Memory Speed 1580 MHz 1800 MHz
Power (Max TDP) 52 watts 60 watts
Bandwidth 25280 MB/sec 28800 MB/sec
Texel Rate 10000 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 48 96
Texture Mapping Units 16 16
Render Output Units 8 4
Bus Type DDR3 GDDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 486 million 585 million
Bus PCIe 2.0 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably 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 GT 315

Amazon.com

Check prices at:

GeForce GT 430

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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