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GeForce GT 450 (OEM) vs Radeon R5 M255

Intro

The GeForce GT 450 (OEM) features a GPU clock speed of 790 MHz, and the 1536 MB of GDDR5 RAM is set to run at 1000 MHz through a 192-bit bus. It also features 144 SPUs, 24 TAUs, and 24 Raster Operation Units.

Compare all of that to the Radeon R5 M255, which comes with a core clock speed of 940 MHz and a DDR3 memory frequency of 1000 MHz. It also features a 64-bit memory bus, and makes use of a 28 nm design. It is comprised of 320 SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GT 450 (OEM) should in theory be a lot better than the Radeon R5 M255 overall. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
Radeon R5 M255 16000 MB/sec
Difference: 80000 (500%)

Texel Rate

The GeForce GT 450 (OEM) should be just a bit (approximately 1%) more effective at texture filtering than the Radeon R5 M255. (explain)

GeForce GT 450 (OEM) 18960 Mtexels/sec
Radeon R5 M255 18800 Mtexels/sec
Difference: 160 (1%)

Pixel Rate

The GeForce GT 450 (OEM) will be much (more or less 152%) better at AA than the Radeon R5 M255, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
Radeon R5 M255 7520 Mpixels/sec
Difference: 11440 (152%)

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 450 (OEM)

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 450 (OEM) Radeon R5 M255
Manufacturer nVidia AMD
Year October 2010 June 2014
Code Name GF106 Jet Pro
Memory 1536 MB 2048 MB
Core Speed 790 MHz 940 MHz
Memory Speed 4000 MHz 2000 MHz
Power (Max TDP) 106 watts (Unknown) watts
Bandwidth 96000 MB/sec 16000 MB/sec
Texel Rate 18960 Mtexels/sec 18800 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 7520 Mpixels/sec
Unified Shaders 144 320
Texture Mapping Units 24 20
Render Output Units 24 8
Bus Type GDDR5 DDR3
Bus Width 192-bit 64-bit
Fab Process 40 nm 28 nm
Transistors 1170 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x8
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 450 (OEM)

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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