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GeForce GT 450 (OEM) vs Radeon HD 6950

Intro

The GeForce GT 450 (OEM) uses a 40 nm design. nVidia has clocked the core speed at 790 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this model. It features 144 SPUs as well as 24 Texture Address Units and 24 Rasterization Operator Units.

Compare all of that to the Radeon HD 6950, which has a core clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It features 1408 SPUs, 88 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM) 106 Watts
Radeon HD 6950 200 Watts
Difference: 94 Watts (89%)

Memory Bandwidth

The Radeon HD 6950 should theoretically perform a lot faster than the GeForce GT 450 (OEM) in general. (explain)

Radeon HD 6950 160000 MB/sec
GeForce GT 450 (OEM) 96000 MB/sec
Difference: 64000 (67%)

Texel Rate

The Radeon HD 6950 will be much (more or less 271%) better at AF than the GeForce GT 450 (OEM). (explain)

Radeon HD 6950 70400 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 51440 (271%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 6950 is the winner, by far. (explain)

Radeon HD 6950 25600 Mpixels/sec
GeForce GT 450 (OEM) 18960 Mpixels/sec
Difference: 6640 (35%)

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 6950

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 6950
Manufacturer nVidia AMD
Year October 2010 December 2010
Code Name GF106 Cayman Pro
Memory 1536 MB 1024 MB
Core Speed 790 MHz 800 MHz
Memory Speed 4000 MHz 5000 MHz
Power (Max TDP) 106 watts 200 watts
Bandwidth 96000 MB/sec 160000 MB/sec
Texel Rate 18960 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 144 1408
Texture Mapping Units 24 88
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 2640 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the 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 number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 450 (OEM)

Amazon.com

Check prices at:

Radeon HD 6950

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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