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GeForce GT 450 (OEM) vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GT 450 (OEM) makes use of a 40 nm design. nVidia has set the core frequency at 790 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this particular card. It features 144 SPUs along with 24 Texture Address Units and 24 ROPs.

Compare those specs to the Radeon HD 6450 (OEM) 1GB, which makes use of a 40 nm design. AMD has set the core speed at 750 MHz. The GDDR5 memory works at a speed of 900 MHz on this card. It features 160 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GT 450 (OEM) 106 Watts
Difference: 75 Watts (242%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 450 (OEM) should perform much faster than the Radeon HD 6450 (OEM) 1GB in general. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 67200 (233%)

Texel Rate

The GeForce GT 450 (OEM) should be much (approximately 216%) faster with regards to AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GT 450 (OEM) 18960 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 12960 (216%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GT 450 (OEM) is the winner, by a large margin. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 15960 (532%)

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 HD 6450 (OEM) 1GB

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 HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year October 2010 February 2011
Code Name GF106 Caicos
Memory 1536 MB 1024 MB
Core Speed 790 MHz 750 MHz
Memory Speed 4000 MHz 3600 MHz
Power (Max TDP) 106 watts 31 watts
Bandwidth 96000 MB/sec 28800 MB/sec
Texel Rate 18960 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 144 160
Texture Mapping Units 24 8
Render Output Units 24 4
Bus Type GDDR5 GDDR5
Bus Width 192-bit 64-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 370 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GT 450 (OEM)

Amazon.com

Check prices at:

Radeon HD 6450 (OEM) 1GB

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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