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GeForce 9500 GT 1GB GDDR3 vs GeForce GT 315

Intro

The GeForce 9500 GT 1GB GDDR3 comes with a clock speed of 550 MHz and a GDDR3 memory speed of 800 MHz. It also uses a 128-bit bus, and uses a 55 nm design. It features 32 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare those specs to the GeForce GT 315, which has GPU clock speed of 625 MHz, and 512 MB of DDR3 RAM running at 790 MHz through a 128-bit bus. It also is comprised of 48 Stream Processors, 16 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 1GB GDDR3 50 Watts
GeForce GT 315 52 Watts
Difference: 2 Watts (4%)

Memory Bandwidth

Theoretically, the GeForce 9500 GT 1GB GDDR3 should be just a bit faster than the GeForce GT 315 overall. (explain)

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

Texel Rate

The GeForce GT 315 should be just a bit (more or less 14%) better at AF than the GeForce 9500 GT 1GB GDDR3. (explain)

GeForce GT 315 10000 Mtexels/sec
GeForce 9500 GT 1GB GDDR3 8800 Mtexels/sec
Difference: 1200 (14%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 315 is the winner, but only just. (explain)

GeForce GT 315 5000 Mpixels/sec
GeForce 9500 GT 1GB 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 1GB 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.

Specifications

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Model GeForce 9500 GT 1GB GDDR3 GeForce GT 315
Manufacturer nVidia nVidia
Year July 2008 November 2009
Code Name G96b GT216
Memory 1024 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 information (in units of MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 9500 GT 1GB 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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