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GeForce GT 450 (OEM) vs Radeon HD 6950

Intro

The GeForce GT 450 (OEM) has a GPU clock speed of 790 MHz, and the 1536 MB of GDDR5 memory is set to run at 1000 MHz through a 192-bit bus. It also is made up of 144 Stream Processors, 24 Texture Address Units, and 24 Raster Operation Units.

Compare all of that to the Radeon HD 6950, which uses a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this specific card. It features 1408 SPUs along with 88 Texture Address Units and 32 Rasterization Operator 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, in theory, should be much 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 is much (approximately 271%) more effective at texture filtering 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

The Radeon HD 6950 should be a lot (more or less 35%) better at anti-aliasing than the GeForce GT 450 (OEM), and also capable of handling higher resolutions without slowing down too much. (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: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units of the card 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called 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 of the card - 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 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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