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GeForce GT 315 vs GeForce GTX 560

Intro

The GeForce GT 315 uses a 40 nm design. nVidia has clocked the core speed at 625 MHz. The DDR3 RAM is set to run at a frequency of 790 MHz on this specific model. It features 48 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare those specs to the GeForce GTX 560, which has a core clock frequency of 810 MHz and a GDDR5 memory frequency of 1001 MHz. It also features a 256-bit bus, and uses a 40 nm design. It is made up of 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

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(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315 52 Watts
GeForce GTX 560 150 Watts
Difference: 98 Watts (188%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 should theoretically be quite a bit better than the GeForce GT 315 overall. (explain)

GeForce GTX 560 128128 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 102848 (407%)

Texel Rate

The GeForce GTX 560 is a lot (about 354%) better at AF than the GeForce GT 315. (explain)

GeForce GTX 560 45360 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 35360 (354%)

Pixel Rate

The GeForce GTX 560 will be a lot (about 418%) faster with regards to AA than the GeForce GT 315, and also will be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 560 25920 Mpixels/sec
GeForce GT 315 5000 Mpixels/sec
Difference: 20920 (418%)

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

Display Prices

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GeForce GT 315

Amazon.com

GeForce GTX 560

Amazon.com

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

Display Specifications

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Model GeForce GT 315 GeForce GTX 560
Manufacturer nVidia nVidia
Year November 2009 May 2011
Code Name GT216 GF114
Fab Process 40 nm 40 nm
Bus PCIe 2.0 PCIe 2.0 x16
Memory 512 MB 1024 MB
Core Speed 625 MHz 810 MHz
Shader Speed 1360 MHz 1600 MHz
Memory Speed 790 MHz (1580 MHz effective) 1001 MHz (4004 MHz effective)
Unified Shaders 48 336
Texture Mapping Units 16 56
Render Output Units 8 32
Bus Type DDR3 GDDR5
Bus Width 128-bit 256-bit
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1
Power (Max TDP) 52 watts 150 watts
Shader Model 4.1 5.0
Bandwidth 25280 MB/sec 128128 MB/sec
Texel Rate 10000 Mtexels/sec 45360 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 25920 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

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