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

Intro

The GeForce GT 450 (OEM) features clock 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 specifications to the Radeon HD 6450 (OEM), which comes with a GPU core clock speed of 625 MHz, and 512 MB of GDDR3 memory set to run at 800 MHz through a 64-bit bus. It also is comprised of 160 Stream Processors, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

As far as performance goes, the GeForce GT 450 (OEM) should in theory be much better than the Radeon HD 6450 (OEM) overall. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
Radeon HD 6450 (OEM) 12800 MB/sec
Difference: 83200 (650%)

Texel Rate

The GeForce GT 450 (OEM) will be much (more or less 279%) better at AF than the Radeon HD 6450 (OEM). (explain)

GeForce GT 450 (OEM) 18960 Mtexels/sec
Radeon HD 6450 (OEM) 5000 Mtexels/sec
Difference: 13960 (279%)

Pixel Rate

The GeForce GT 450 (OEM) will be a lot (approximately 658%) faster with regards to anti-aliasing than the Radeon HD 6450 (OEM), and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
Radeon HD 6450 (OEM) 2500 Mpixels/sec
Difference: 16460 (658%)

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)

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)
Manufacturer nVidia AMD
Year October 2010 February 2011
Code Name GF106 Caicos
Memory 1536 MB 512 MB
Core Speed 790 MHz 625 MHz
Memory Speed 4000 MHz 1600 MHz
Power (Max TDP) 106 watts 31 watts
Bandwidth 96000 MB/sec 12800 MB/sec
Texel Rate 18960 Mtexels/sec 5000 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 2500 Mpixels/sec
Unified Shaders 144 160
Texture Mapping Units 24 8
Render Output Units 24 4
Bus Type GDDR5 GDDR3
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 maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 450 (OEM)

Amazon.com

Check prices at:

Radeon HD 6450 (OEM)

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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