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GeForce GT 450 (OEM) vs Radeon HD 5850

Intro

The GeForce GT 450 (OEM) features core speeds of 790 MHz on the GPU, and 1000 MHz on the 1536 MB of GDDR5 RAM. It features 144 SPUs along with 24 TAUs and 24 ROPs.

Compare those specs to the Radeon HD 5850, which uses a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this model. It features 1440(288x5) SPUs along with 72 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM) 106 Watts
Radeon HD 5850 151 Watts
Difference: 45 Watts (42%)

Memory Bandwidth

In theory, the Radeon HD 5850 should be much faster than the GeForce GT 450 (OEM) overall. (explain)

Radeon HD 5850 128000 MB/sec
GeForce GT 450 (OEM) 96000 MB/sec
Difference: 32000 (33%)

Texel Rate

The Radeon HD 5850 should be a lot (more or less 175%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

Radeon HD 5850 52200 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 33240 (175%)

Pixel Rate

The Radeon HD 5850 will be much (about 22%) faster with regards to AA than the GeForce GT 450 (OEM), and should be able to handle higher resolutions better. (explain)

Radeon HD 5850 23200 Mpixels/sec
GeForce GT 450 (OEM) 18960 Mpixels/sec
Difference: 4240 (22%)

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

Display Prices

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GeForce GT 450 (OEM)

Amazon.com

Check prices at:

Radeon HD 5850

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

Display Specifications

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Model GeForce GT 450 (OEM) Radeon HD 5850
Manufacturer nVidia AMD
Year October 2010 September 30, 2009
Code Name GF106 Cypress PRO
Memory 1536 MB 1024 MB
Core Speed 790 MHz 725 MHz
Memory Speed 4000 MHz 4000 MHz
Power (Max TDP) 106 watts 151 watts
Bandwidth 96000 MB/sec 128000 MB/sec
Texel Rate 18960 Mtexels/sec 52200 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 23200 Mpixels/sec
Unified Shaders 144 1440(288x5)
Texture Mapping Units 24 72
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 2154 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics 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 video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated 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 drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 450 (OEM)

Amazon.com

Check prices at:

Radeon HD 5850

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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