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Radeon HD 3650 vs Radeon HD 3650 256MB
Intro
The Radeon HD 3650 has a GPU core clock speed of 725 MHz, and the 1024 MB of GDDR4 memory runs at 800 MHz through a 128-bit bus. It also features 120(24x5) SPUs, 8 TAUs, and 4 ROPs.Compare all that to the Radeon HD 3650 256MB, which makes use of a 55 nm design. AMD has clocked the core frequency at 725 MHz. The DDR2 memory is set to run at a frequency of 800 MHz on this specific card. It features 120(24x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have the exact same memory bandwidth, so theoretically they should perform the same. (explain)
Texel Rate
Both cards have exactly the same texel rate, so theoretically they should perform equally good at at anisotropic filtering. (explain)Pixel Rate
Both cards have exactly the same pixel fill rate, so in theory they should be equally good at at FSAA, and be able to handle the same resolutions. (explain)
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 3650Amazon.com
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Radeon HD 3650 256MBAmazon.com
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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 | Radeon HD 3650 | Radeon HD 3650 256MB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | 2008 | 2008 |
| Code Name | RV635 PRO | RV635 PRO |
| Memory | 1024 MB | 256 MB |
| Core Speed | 725 MHz | 725 MHz |
| Memory Speed | 1600 MHz | 1600 MHz |
| Power (Max TDP) | 78 watts | 78 watts |
| Bandwidth | 25600 MB/sec | 25600 MB/sec |
| Texel Rate | 5800 Mtexels/sec | 5800 Mtexels/sec |
| Pixel Rate | 2900 Mpixels/sec | 2900 Mpixels/sec |
| Unified Shaders | 120(24x5) | 120(24x5) |
| Texture Mapping Units | 8 | 8 |
| Render Output Units | 4 | 4 |
| Bus Type | GDDR4 | DDR2 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 55 nm | 55 nm |
| Transistors | (Unknown) million | (Unknown) million |
| Bus | PCIe 2.0 x16/AGP 8x | 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 maximum amount of information (counted in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, 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 maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core 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 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 max fill rate.
Radeon HD 3650Amazon.com
Check prices at:
|
Radeon HD 3650 256MBAmazon.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.
|
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