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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 RAM runs at a frequency of 1000 MHz on this specific card. It features 144 SPUs as well as 24 TAUs and 24 Rasterization Operator Units.

Compare all that to the Radeon HD 6750 1GB, which features a core clock frequency of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is made up of 720 SPUs, 36 TAUs, and 16 ROPs.

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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

In theory, the GeForce GT 450 (OEM) should be 50% quicker than the Radeon HD 6750 1GB in general, because of its greater bandwidth. (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 much (about 38%) more effective at AF 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) is a lot (about 63%) faster with regards to FSAA than the Radeon HD 6750 1GB, and will be capable of handling higher resolutions without slowing down too much. (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 data (measured in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR 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 texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to 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 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 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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