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GeForce GTS 450 1GB vs Radeon HD 6670 (OEM)
Intro
The GeForce GTS 450 1GB features core clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs along with 32 TAUs and 16 Rasterization Operator Units.Compare those specs to the Radeon HD 6670 (OEM), which features a GPU core clock speed of 800 MHz, and 512 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 480 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6670 (OEM) |
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63 Watts |
| GeForce GTS 450 1GB |
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106 Watts |
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Memory Bandwidth
In theory, the Radeon HD 6670 (OEM) will 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 |
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57728 MB/sec |
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Texel Rate
The GeForce GTS 450 1GB will be a lot (more or less 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 |
|
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Pixel Rate
The GeForce GTS 450 1GB is much (about 96%) more effective at anti-aliasing than the Radeon HD 6670 (OEM), and should be capable of handling higher resolutions better. (explain)| GeForce GTS 450 1GB |
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12528 Mpixels/sec |
| Radeon HD 6670 (OEM) |
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6400 Mpixels/sec |
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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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce GTS 450 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 6670 (OEM)Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce GTS 450 1GB | Radeon HD 6670 (OEM) |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | September 2010 | February 2011 |
| Code Name | GF106 | Turks |
| Fab Process | 40 nm | 40 nm |
| Bus | PCIe x16 | PCIe 2.1 x16 |
| Memory | 1024 MB | 512 MB |
| Core Speed | 783 MHz | 800 MHz |
| Shader Speed | 1566 MHz | (N/A) MHz |
| Memory Speed | 902 MHz (3608 MHz effective) | 1000 MHz (4000 MHz effective) |
| Unified Shaders | 192 | 480 |
| Texture Mapping Units | 32 | 24 |
| Render Output Units | 16 | 8 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
| Power (Max TDP) | 106 watts | 63 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 57728 MB/sec | 64000 MB/sec |
| Texel Rate | 25056 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 12528 Mpixels/sec | 6400 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
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