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GeForce GTS 450 1GB vs Radeon HD 6670 (OEM)

Intro

The GeForce GTS 450 1GB uses a 40 nm design. nVidia has set the core frequency at 783 MHz. The GDDR5 RAM works at a frequency of 902 MHz on this specific card. It features 192 SPUs along with 32 TAUs and 16 ROPs.

Compare those specifications to the Radeon HD 6670 (OEM), which uses a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this specific card. It features 480 SPUs as well as 24 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 63 Watts
GeForce GTS 450 1GB 106 Watts
Difference: 43 Watts (68%)

Memory Bandwidth

In theory, the Radeon HD 6670 (OEM) should be 11% quicker than the GeForce GTS 450 1GB overall, due to its higher bandwidth. (explain)

Radeon HD 6670 (OEM) 64000 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 6272 (11%)

Texel Rate

The GeForce GTS 450 1GB should be a lot (about 31%) faster with regards to anisotropic filtering than the Radeon HD 6670 (OEM). (explain)

GeForce GTS 450 1GB 25056 Mtexels/sec
Radeon HD 6670 (OEM) 19200 Mtexels/sec
Difference: 5856 (31%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTS 450 1GB is superior to the Radeon HD 6670 (OEM), by far. (explain)

GeForce GTS 450 1GB 12528 Mpixels/sec
Radeon HD 6670 (OEM) 6400 Mpixels/sec
Difference: 6128 (96%)

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 GTS 450 1GB

Amazon.com

Check prices at:

Radeon HD 6670 (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 GTS 450 1GB Radeon HD 6670 (OEM)
Manufacturer nVidia AMD
Year September 2010 February 2011
Code Name GF106 Turks
Memory 1024 MB 512 MB
Core Speed 783 MHz 800 MHz
Memory Speed 3608 MHz 4000 MHz
Power (Max TDP) 106 watts 63 watts
Bandwidth 57728 MB/sec 64000 MB/sec
Texel Rate 25056 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 192 480
Texture Mapping Units 32 24
Render Output Units 16 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 715 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 (in units of MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a 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 figure is calculated by multiplying the amount 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 outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 450 1GB

Amazon.com

Check prices at:

Radeon HD 6670 (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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