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GeForce GT 450 (OEM) vs Radeon HD 6750 1GB

Intro

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

Compare those specifications to the Radeon HD 6750 1GB, which makes use of a 40 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 memory works at a speed of 1000 MHz on this card. It features 720 SPUs along with 36 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB 86 Watts
GeForce GT 450 (OEM) 106 Watts
Difference: 20 Watts (23%)

Memory Bandwidth

Theoretically, the GeForce GT 450 (OEM) should perform a lot faster than the Radeon HD 6750 1GB in general. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
Radeon HD 6750 1GB 64000 MB/sec
Difference: 32000 (50%)

Texel Rate

The Radeon HD 6750 1GB will be a lot (approximately 38%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

Radeon HD 6750 1GB 26100 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 7140 (38%)

Pixel Rate

The GeForce GT 450 (OEM) will be much (about 63%) faster with regards to full screen anti-aliasing than the Radeon HD 6750 1GB, and able to handle higher screen resolutions better. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
Radeon HD 6750 1GB 11600 Mpixels/sec
Difference: 7360 (63%)

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 6750 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 6750 1GB
Manufacturer nVidia AMD
Year October 2010 January 2011
Code Name GF106 Juniper Pro
Memory 1536 MB 1024 MB
Core Speed 790 MHz 725 MHz
Memory Speed 4000 MHz 4000 MHz
Power (Max TDP) 106 watts 86 watts
Bandwidth 96000 MB/sec 64000 MB/sec
Texel Rate 18960 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 144 720
Texture Mapping Units 24 36
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 1040 million
Bus PCIe x16 PCIe 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 MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory 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 6750 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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