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GeForce GT 315 vs Radeon R5 M255

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 speed of 790 MHz on this specific model. It features 48 SPUs along with 16 Texture Address Units and 8 ROPs.

Compare all that to the Radeon R5 M255, which makes use of a 28 nm design. AMD has set the core frequency at 940 MHz. The DDR3 RAM is set to run at a speed of 1000 MHz on this specific model. It features 320 SPUs as well as 20 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GT 315 should perform a lot faster than the Radeon R5 M255 overall. (explain)

GeForce GT 315 25280 MB/sec
Radeon R5 M255 16000 MB/sec
Difference: 9280 (58%)

Texel Rate

The Radeon R5 M255 is much (more or less 88%) more effective at anisotropic filtering than the GeForce GT 315. (explain)

Radeon R5 M255 18800 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 8800 (88%)

Pixel Rate

The Radeon R5 M255 should be much (more or less 50%) more effective at FSAA than the GeForce GT 315, and should be capable of handling higher screen resolutions more effectively. (explain)

Radeon R5 M255 7520 Mpixels/sec
GeForce GT 315 5000 Mpixels/sec
Difference: 2520 (50%)

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 R5 M255

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 R5 M255
Manufacturer nVidia AMD
Year November 2009 June 2014
Code Name GT216 Jet Pro
Memory 512 MB 2048 MB
Core Speed 625 MHz 940 MHz
Memory Speed 1580 MHz 2000 MHz
Power (Max TDP) 52 watts (Unknown) watts
Bandwidth 25280 MB/sec 16000 MB/sec
Texel Rate 10000 Mtexels/sec 18800 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 7520 Mpixels/sec
Unified Shaders 48 320
Texture Mapping Units 16 20
Render Output Units 8 8
Bus Type DDR3 DDR3
Bus Width 128-bit 64-bit
Fab Process 40 nm 28 nm
Transistors 486 million (Unknown) million
Bus PCIe 2.0 PCIe 3.0 x8
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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

Display Prices

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GeForce GT 315

Amazon.com

Check prices at:

Radeon R5 M255

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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