 |
 |
GeForce 9800 GT 512MB vs Radeon HD 6450 (OEM)
Intro
The GeForce 9800 GT 512MB uses a 65/55 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 RAM works at a speed of 900 MHz on this particular model. It features 112 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.Compare all that to the Radeon HD 6450 (OEM), which has clock speeds of 625 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 memory. It features 160 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6450 (OEM) |
|
31 Watts |
| GeForce 9800 GT 512MB |
|
105 Watts |
|
|
Memory Bandwidth
In theory, the GeForce 9800 GT 512MB should be quite a bit faster than the Radeon HD 6450 (OEM) in general. (explain)
| GeForce 9800 GT 512MB |
|
57600 MB/sec |
| Radeon HD 6450 (OEM) |
|
12800 MB/sec |
|
|
Texel Rate
The GeForce 9800 GT 512MB should be a lot (more or less 572%) faster with regards to anisotropic filtering than the Radeon HD 6450 (OEM). (explain)| GeForce 9800 GT 512MB |
|
33600 Mtexels/sec |
| Radeon HD 6450 (OEM) |
|
5000 Mtexels/sec |
|
|
Pixel Rate
If using a high screen resolution is important to you, then the GeForce 9800 GT 512MB is superior to the Radeon HD 6450 (OEM), by a large margin. (explain)| GeForce 9800 GT 512MB |
|
9600 Mpixels/sec |
| Radeon HD 6450 (OEM) |
|
2500 Mpixels/sec |
|
|
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 9800 GT 512MBAmazon.com
Check prices at:
|
Radeon HD 6450 (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
| Model | GeForce 9800 GT 512MB | Radeon HD 6450 (OEM) |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | July 2008 | February 2011 |
| Code Name | G92a/b | Caicos |
| Memory | 512 MB | 512 MB |
| Core Speed | 600 MHz | 625 MHz |
| Memory Speed | 1800 MHz | 1600 MHz |
| Power (Max TDP) | 105 watts | 31 watts |
| Bandwidth | 57600 MB/sec | 12800 MB/sec |
| Texel Rate | 33600 Mtexels/sec | 5000 Mtexels/sec |
| Pixel Rate | 9600 Mpixels/sec | 2500 Mpixels/sec |
| Unified Shaders | 112 | 160 |
| Texture Mapping Units | 56 | 8 |
| Render Output Units | 16 | 4 |
| Bus Type | GDDR3 | GDDR3 |
| Bus Width | 256-bit | 64-bit |
| Fab Process | 65/55 nm | 40 nm |
| Transistors | 754 million | 370 million |
| Bus | PCIe x16 2.0 | PCIe 2.1 x16 |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock 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 in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.
GeForce 9800 GT 512MBAmazon.com
Check prices at:
|
Radeon HD 6450 (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.
|
Comments
Be the first to leave a comment!