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GeForce GT 420 vs Radeon HD 6670 (OEM) 1GB
Intro
The GeForce GT 420 features core speeds of 700 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR3 RAM. It features 48 SPUs as well as 8 Texture Address Units and 4 ROPs.Compare all of that to the Radeon HD 6670 (OEM) 1GB, which uses a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory works at a speed of 1000 MHz on this model. It features 480 SPUs along with 24 Texture Address Units and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 420 |
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50 Watts |
| Radeon HD 6670 (OEM) 1GB |
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63 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 6670 (OEM) 1GB should be quite a bit faster than the GeForce GT 420 overall. (explain)
| Radeon HD 6670 (OEM) 1GB |
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64000 MB/sec |
| GeForce GT 420 |
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28800 MB/sec |
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Texel Rate
The Radeon HD 6670 (OEM) 1GB will be a lot (more or less 243%) faster with regards to texture filtering than the GeForce GT 420. (explain)| Radeon HD 6670 (OEM) 1GB |
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19200 Mtexels/sec |
| GeForce GT 420 |
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5600 Mtexels/sec |
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Pixel Rate
If using a high resolution is important to you, then the Radeon HD 6670 (OEM) 1GB is the winner, and very much so. (explain)| Radeon HD 6670 (OEM) 1GB |
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6400 Mpixels/sec |
| GeForce GT 420 |
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2800 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
GeForce GT 420Amazon.com
Check prices at:
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Radeon HD 6670 (OEM) 1GBAmazon.com
Check prices at:
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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
| Model | GeForce GT 420 | Radeon HD 6670 (OEM) 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | September 2010 | February 2011 |
| Code Name | GF108 | Turks |
| Memory | 2048 MB | 1024 MB |
| Core Speed | 700 MHz | 800 MHz |
| Memory Speed | 1800 MHz | 4000 MHz |
| Power (Max TDP) | 50 watts | 63 watts |
| Bandwidth | 28800 MB/sec | 64000 MB/sec |
| Texel Rate | 5600 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 2800 Mpixels/sec | 6400 Mpixels/sec |
| Unified Shaders | 48 | 480 |
| Texture Mapping Units | 8 | 24 |
| Render Output Units | 4 | 8 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 585 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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core 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 rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.
GeForce GT 420Amazon.com
Check prices at:
|
Radeon HD 6670 (OEM) 1GBAmazon.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.
|
Comments
One Response to “GeForce GT 420 vs Radeon HD 6670 (OEM) 1GB”[...] oder ist es die CPU, die zu schwach ist? Eine HD 6670 ist zwar nicht superschnell, allerdings (theoretisch) sehr viel schneller als deine Alte, praktisch hab ich nur die GT430 und die HD 6670 im gleichen [...]