 |
 |
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 runs at a frequency of 900 MHz on this card. It features 112 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.Compare those specs to the Radeon HD 6450 (OEM), which has GPU core speed of 625 MHz, and 512 MB of GDDR3 RAM set to run at 800 MHz through a 64-bit bus. It also is made up of 160 SPUs, 8 Texture Address Units, and 4 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6450 (OEM) |
|
31 Watts |
| GeForce 9800 GT 512MB |
|
105 Watts |
|
|
Memory Bandwidth
As far as performance goes, the GeForce 9800 GT 512MB should theoretically be a lot superior to 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 will be quite a bit (approximately 572%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)| GeForce 9800 GT 512MB |
|
33600 Mtexels/sec |
| Radeon HD 6450 (OEM) |
|
5000 Mtexels/sec |
|
|
Pixel Rate
The GeForce 9800 GT 512MB should be much (about 284%) more effective at AA than the Radeon HD 6450 (OEM), and also will be capable of handling higher resolutions more effectively. (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 max amount of information (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units 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 per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max 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!