 |
 |
Radeon HD 3470 512MB vs Radeon HD 3650 512MB
Intro
The Radeon HD 3470 512MB features a clock frequency of 800 MHz and a GDDR3 memory frequency of 950 MHz. It also features a 128-bit bus, and uses a 55 nm design. It features 40(8x5) SPUs, 4 Texture Address Units, and 4 Raster Operation Units.Compare those specs to the Radeon HD 3650 512MB, which features a core clock speed of 725 MHz and a GDDR3 memory speed of 800 MHz. It also features a 128-bit bus, and uses a 55 nm design. It is made up of 120(24x5) SPUs, 8 Texture Address Units, and 4 ROPs.
Power Usage and Theoretical Benchmarks
Memory Bandwidth
Theoretically, the Radeon HD 3470 512MB should be a bit faster than the Radeon HD 3650 512MB overall. (explain)
| Radeon HD 3470 512MB |
|
30400 MB/sec |
| Radeon HD 3650 512MB |
|
25600 MB/sec |
|
|
Texel Rate
The Radeon HD 3650 512MB is quite a bit (approximately 81%) better at texture filtering than the Radeon HD 3470 512MB. (explain)| Radeon HD 3650 512MB |
|
5800 Mtexels/sec |
| Radeon HD 3470 512MB |
|
3200 Mtexels/sec |
|
|
Pixel Rate
The Radeon HD 3470 512MB is a bit (about 10%) better at anti-aliasing than the Radeon HD 3650 512MB, and capable of handling higher resolutions more effectively. (explain)| Radeon HD 3470 512MB |
|
3200 Mpixels/sec |
| Radeon HD 3650 512MB |
|
2900 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
Radeon HD 3470 512MBAmazon.com
Check prices at:
|
Radeon HD 3650 512MBAmazon.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 | Radeon HD 3470 512MB | Radeon HD 3650 512MB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | 2008 | 2008 |
| Code Name | RV620 PRO | RV635 PRO |
| Memory | 512 MB | 512 MB |
| Core Speed | 800 MHz | 725 MHz |
| Memory Speed | 1900 MHz | 1600 MHz |
| Power (Max TDP) | (Unknown) watts | 78 watts |
| Bandwidth | 30400 MB/sec | 25600 MB/sec |
| Texel Rate | 3200 Mtexels/sec | 5800 Mtexels/sec |
| Pixel Rate | 3200 Mpixels/sec | 2900 Mpixels/sec |
| Unified Shaders | 40(8x5) | 120(24x5) |
| Texture Mapping Units | 4 | 8 |
| Render Output Units | 4 | 4 |
| Bus Type | GDDR3 | GDDR3 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 55 nm | 55 nm |
| Transistors | (Unknown) million | (Unknown) million |
| Bus | PCIe 2.0 x16 | PCIe 2.0 x16/AGP 8x |
| DirectX Version | DirectX 10.1 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.0 |
Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated 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 card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends 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 max fill rate.
Radeon HD 3470 512MBAmazon.com
Check prices at:
|
Radeon HD 3650 512MBAmazon.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 “Radeon HD 3470 512MB vs Radeon HD 3650 512MB”[...] Radeon HD 3470 512MB vs Radeon HD 3650 512MB …Power Usage and Theoretical Benchmarks. Memory Bandwidth. Theoretically speaking, the Radeon HD 3470 512MB should perform a small bit faster than the … [...]