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GeForce 9500 GT 512MB GDDR3 vs GeForce GT 315

Intro

The GeForce 9500 GT 512MB GDDR3 features a GPU core clock speed of 550 MHz, and the 512 MB of GDDR3 memory is set to run at 800 MHz through a 128-bit bus. It also is made up of 32 Stream Processors, 16 Texture Address Units, and 8 ROPs.

Compare those specifications to the GeForce GT 315, which comes with a clock frequency of 625 MHz and a DDR3 memory frequency of 790 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It is comprised of 48 SPUs, 16 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 512MB GDDR3 50 Watts
GeForce GT 315 52 Watts
Difference: 2 Watts (4%)

Memory Bandwidth

The GeForce 9500 GT 512MB GDDR3 should theoretically be just a bit faster than the GeForce GT 315 overall. (explain)

GeForce 9500 GT 512MB GDDR3 25600 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 320 (1%)

Texel Rate

The GeForce GT 315 is a small bit (about 14%) faster with regards to anisotropic filtering than the GeForce 9500 GT 512MB GDDR3. (explain)

GeForce GT 315 10000 Mtexels/sec
GeForce 9500 GT 512MB GDDR3 8800 Mtexels/sec
Difference: 1200 (14%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 315 is superior to the GeForce 9500 GT 512MB GDDR3, though only just barely. (explain)

GeForce GT 315 5000 Mpixels/sec
GeForce 9500 GT 512MB GDDR3 4400 Mpixels/sec
Difference: 600 (14%)

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 9500 GT 512MB GDDR3

Amazon.com

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GeForce GT 315

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 9500 GT 512MB GDDR3 GeForce GT 315
Manufacturer nVidia nVidia
Year July 2008 November 2009
Code Name G96b GT216
Memory 512 MB 512 MB
Core Speed 550 MHz 625 MHz
Memory Speed 1600 MHz 1580 MHz
Power (Max TDP) 50 watts 52 watts
Bandwidth 25600 MB/sec 25280 MB/sec
Texel Rate 8800 Mtexels/sec 10000 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 5000 Mpixels/sec
Unified Shaders 32 48
Texture Mapping Units 16 16
Render Output Units 8 8
Bus Type GDDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 314 million 486 million
Bus PCIe x16 2.0, PCI PCIe 2.0
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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

Display Prices

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GeForce 9500 GT 512MB GDDR3

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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