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GeForce GT 315 vs GeForce GT 430 1GB

Intro

The GeForce GT 315 features a core clock speed of 625 MHz and a DDR3 memory speed of 790 MHz. It also features a 128-bit bus, and uses a 40 nm design. It features 48 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare those specs to the GeForce GT 430 1GB, which comes with GPU core speed of 700 MHz, and 1024 MB of GDDR3 RAM set to run at 900 MHz through a 128-bit bus. It also features 96 SPUs, 16 TAUs, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315 52 Watts
GeForce GT 430 1GB 60 Watts
Difference: 8 Watts (15%)

Memory Bandwidth

In theory, the GeForce GT 430 1GB should be a little bit faster than the GeForce GT 315 in general. (explain)

GeForce GT 430 1GB 28800 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 3520 (14%)

Texel Rate

The GeForce GT 430 1GB is a small bit (approximately 12%) better at texture filtering than the GeForce GT 315. (explain)

GeForce GT 430 1GB 11200 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 1200 (12%)

Pixel Rate

The GeForce GT 315 should be a lot (about 79%) better at AA than the GeForce GT 430 1GB, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GT 315 5000 Mpixels/sec
GeForce GT 430 1GB 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 1GB

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 1GB
Manufacturer nVidia nVidia
Year November 2009 October 2010
Code Name GT216 GF108
Memory 512 MB 1024 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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once 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 AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs 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 output rate is also dependant on lots of 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 GT 315

Amazon.com

Check prices at:

GeForce GT 430 1GB

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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