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GeForce GT 315 vs GeForce GTX 560

Intro

The GeForce GT 315 comes with a clock speed of 625 MHz and a DDR3 memory frequency of 790 MHz. It also makes use of a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 48 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare all of that to the GeForce GTX 560, which makes use of a 40 nm design. nVidia has clocked the core speed at 810 MHz. The GDDR5 RAM works at a frequency of 1001 MHz on this model. It features 336 SPUs along with 56 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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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

Theoretically, the GeForce GTX 560 should be a lot faster than the GeForce GT 315 in general. (explain)

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

Texel Rate

The GeForce GTX 560 will be much (more or less 354%) faster with regards to texture filtering 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 should be quite a bit (approximately 418%) better at AA than the GeForce GT 315, and should be able to handle higher screen resolutions better. (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

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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

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Model GeForce GT 315 GeForce GTX 560
Manufacturer nVidia nVidia
Year November 2009 May 2011
Code Name GT216 GF114
Memory 512 MB 1024 MB
Core Speed 625 MHz 810 MHz
Memory Speed 1580 MHz 4004 MHz
Power (Max TDP) 52 watts 150 watts
Bandwidth 25280 MB/sec 128128 MB/sec
Texel Rate 10000 Mtexels/sec 45360 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 25920 Mpixels/sec
Unified Shaders 48 336
Texture Mapping Units 16 56
Render Output Units 8 32
Bus Type DDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 486 million 1950 million
Bus PCIe 2.0 PCIe 2.0 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

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