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GeForce GT 315 vs Radeon HD 5830

Intro

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

Compare those specifications to the Radeon HD 5830, which features core speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1120(224x5) SPUs as well as 56 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315 52 Watts
Radeon HD 5830 175 Watts
Difference: 123 Watts (237%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 is 406% faster than the GeForce GT 315 in general, due to its higher bandwidth. (explain)

Radeon HD 5830 128000 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 102720 (406%)

Texel Rate

The Radeon HD 5830 will be a lot (about 348%) more effective at texture filtering than the GeForce GT 315. (explain)

Radeon HD 5830 44800 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 34800 (348%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 5830 is superior to the GeForce GT 315, and very much so. (explain)

Radeon HD 5830 12800 Mpixels/sec
GeForce GT 315 5000 Mpixels/sec
Difference: 7800 (156%)

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

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Radeon HD 5830

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 Radeon HD 5830
Manufacturer nVidia AMD
Year November 2009 February 25, 2010
Code Name GT216 Cypress LE
Memory 512 MB 1024 MB
Core Speed 625 MHz 800 MHz
Memory Speed 1580 MHz 4000 MHz
Power (Max TDP) 52 watts 175 watts
Bandwidth 25280 MB/sec 128000 MB/sec
Texel Rate 10000 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 48 1120(224x5)
Texture Mapping Units 16 56
Render Output Units 8 16
Bus Type DDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 486 million 2154 million
Bus PCIe 2.0 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GT 315

Amazon.com

Check prices at:

Radeon HD 5830

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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