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GeForce GTS 250 1GB vs Radeon HD 6670 (OEM) 1GB
Intro
The GeForce GTS 250 1GB has a GPU clock speed of 738 MHz, and the 1024 MB of GDDR3 memory runs at 1100 MHz through a 256-bit bus. It also features 128 Stream Processors, 64 Texture Address Units, and 16 ROPs.Compare that to the Radeon HD 6670 (OEM) 1GB, which has core speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 480 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6670 (OEM) 1GB |
|
63 Watts |
| GeForce GTS 250 1GB |
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145 Watts |
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Memory Bandwidth
In theory, the GeForce GTS 250 1GB is 10% quicker than the Radeon HD 6670 (OEM) 1GB overall, because of its higher bandwidth. (explain)
| GeForce GTS 250 1GB |
|
70400 MB/sec |
| Radeon HD 6670 (OEM) 1GB |
|
64000 MB/sec |
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Texel Rate
The GeForce GTS 250 1GB is quite a bit (about 146%) faster with regards to texture filtering than the Radeon HD 6670 (OEM) 1GB. (explain)| GeForce GTS 250 1GB |
|
47232 Mtexels/sec |
| Radeon HD 6670 (OEM) 1GB |
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19200 Mtexels/sec |
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Pixel Rate
The GeForce GTS 250 1GB is much (about 85%) better at anti-aliasing than the Radeon HD 6670 (OEM) 1GB, and also should be able to handle higher screen resolutions while still performing well. (explain)| GeForce GTS 250 1GB |
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11808 Mpixels/sec |
| Radeon HD 6670 (OEM) 1GB |
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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 250 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 6670 (OEM) 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Specifications
| Model | GeForce GTS 250 1GB | Radeon HD 6670 (OEM) 1GB |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | March 3, 2009 | February 2011 |
| Code Name | G92a/b | Turks |
| Fab Process | 65/55 nm | 40 nm |
| Bus | PCIe x16 2.0 | PCIe 2.1 x16 |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 738 MHz | 800 MHz |
| Shader Speed | 1836 MHz | (N/A) MHz |
| Memory Speed | 1100 MHz (2200 MHz effective) | 1000 MHz (4000 MHz effective) |
| Unified Shaders | 128 | 480 |
| Texture Mapping Units | 64 | 24 |
| Render Output Units | 16 | 8 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.1 | OpenGL 4.1 |
| Power (Max TDP) | 145 watts | 63 watts |
| Shader Model | 4.0 | 5.0 |
| Bandwidth | 70400 MB/sec | 64000 MB/sec |
| Texel Rate | 47232 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 11808 Mpixels/sec | 6400 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 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, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
Comments
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