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GeForce GT 315 vs Radeon HD 5570

Intro

The GeForce GT 315 comes with clock speeds of 625 MHz on the GPU, and 790 MHz on the 512 MB of DDR3 memory. It features 48 SPUs as well as 16 TAUs and 8 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5570, which makes use of a 40 nm design. AMD has set the core frequency at 650 MHz. The DDR3 RAM works at a speed of 900 MHz on this card. It features 400(80x5) SPUs along with 20 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570 43 Watts
GeForce GT 315 52 Watts
Difference: 9 Watts (21%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5570 should be a bit faster than the GeForce GT 315 in general. (explain)

Radeon HD 5570 28800 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 3520 (14%)

Texel Rate

The Radeon HD 5570 will be much (more or less 30%) better at anisotropic filtering than the GeForce GT 315. (explain)

Radeon HD 5570 13000 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 3000 (30%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5570 is the winner, but only just. (explain)

Radeon HD 5570 5200 Mpixels/sec
GeForce GT 315 5000 Mpixels/sec
Difference: 200 (4%)

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

Check prices at:

Radeon HD 5570

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 5570
Manufacturer nVidia AMD
Year November 2009 February 9, 2010
Code Name GT216 Redwood PRO
Memory 512 MB 512 MB
Core Speed 625 MHz 650 MHz
Memory Speed 1580 MHz 1800 MHz
Power (Max TDP) 52 watts 43 watts
Bandwidth 25280 MB/sec 28800 MB/sec
Texel Rate 10000 Mtexels/sec 13000 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 48 400(80x5)
Texture Mapping Units 16 20
Render Output Units 8 8
Bus Type DDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 486 million 627 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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video 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 that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core 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 also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GT 315

Amazon.com

Check prices at:

Radeon HD 5570

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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