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GeForce GT 450 (OEM) vs Radeon R5 M255

Intro

The GeForce GT 450 (OEM) has a core clock frequency of 790 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 192-bit bus, and uses a 40 nm design. It features 144 SPUs, 24 Texture Address Units, and 24 ROPs.

Compare those specifications to the Radeon R5 M255, which uses a 28 nm design. AMD has set the core frequency at 940 MHz. The DDR3 RAM runs at a frequency of 1000 MHz on this specific card. It features 320 SPUs as well as 20 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GT 450 (OEM) should theoretically be quite a bit 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) should be a bit (about 1%) more effective at anisotropic 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) is quite a bit (approximately 152%) more effective at FSAA than the Radeon R5 M255, and also will be capable of handling higher resolutions better. (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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max 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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