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GeForce GT 450 (OEM) vs Radeon R5 M255

Intro

The GeForce GT 450 (OEM) makes use of a 40 nm design. nVidia has clocked the core frequency at 790 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this card. It features 144 SPUs along with 24 Texture Address Units and 24 Rasterization Operator Units.

Compare those specs to the Radeon R5 M255, which has a core clock frequency of 940 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 64-bit memory bus, and uses a 28 nm design. It is made up of 320 SPUs, 20 Texture Address Units, and 8 ROPs.

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 superior to 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) is a bit (more or less 1%) faster with regards to AF than the Radeon R5 M255. (explain)

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

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 450 (OEM) is the winner, and very much so. (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 largest amount of information (in units of MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 potential to get to the maximum fill rate.

Display Prices

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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.

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