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GeForce GTX 650 Ti 2GB vs Radeon HD 4850 2GB
Intro
The GeForce GTX 650 Ti 2GB has a core clock frequency of 928 MHz and a GDDR5 memory frequency of 1350 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is comprised of 768 SPUs, 64 TAUs, and 16 Raster Operation Units.Compare all of that to the Radeon HD 4850 2GB, which comes with a GPU core clock speed of 625 MHz, and 2048 MB of GDDR4 memory running at 993 MHz through a 256-bit bus. It also features 800(160x5) Stream Processors, 40 TAUs, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
In theory, the GeForce GTX 650 Ti 2GB should perform a lot faster than the Radeon HD 4850 2GB overall. (explain)
| GeForce GTX 650 Ti 2GB |
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86400 MB/sec |
| Radeon HD 4850 2GB |
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63552 MB/sec |
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Texel Rate
The GeForce GTX 650 Ti 2GB should be quite a bit (more or less 138%) better at AF than the Radeon HD 4850 2GB. (explain)| GeForce GTX 650 Ti 2GB |
|
59392 Mtexels/sec |
| Radeon HD 4850 2GB |
|
25000 Mtexels/sec |
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Pixel Rate
The GeForce GTX 650 Ti 2GB should be a lot (about 48%) better at full screen anti-aliasing than the Radeon HD 4850 2GB, and also able to handle higher resolutions without slowing down too much. (explain)| GeForce GTX 650 Ti 2GB |
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14848 Mpixels/sec |
| Radeon HD 4850 2GB |
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10000 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 GTX 650 Ti 2GBAmazon.com
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Radeon HD 4850 2GBAmazon.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 | GeForce GTX 650 Ti 2GB | Radeon HD 4850 2GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | October 2012 | Jun 25, 2008 |
| Code Name | GK106 | RV770 PRO |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 928 MHz | 625 MHz |
| Memory Speed | 5400 MHz | 1986 MHz |
| Power (Max TDP) | 110 watts | 110 watts |
| Bandwidth | 86400 MB/sec | 63552 MB/sec |
| Texel Rate | 59392 Mtexels/sec | 25000 Mtexels/sec |
| Pixel Rate | 14848 Mpixels/sec | 10000 Mpixels/sec |
| Unified Shaders | 768 | 800(160x5) |
| Texture Mapping Units | 64 | 40 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR5 | GDDR4 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 28 nm | 55 nm |
| Transistors | 2540 million | 956 million |
| Bus | PCIe 3.0 x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 11.0 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.3 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the 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 number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.
GeForce GTX 650 Ti 2GBAmazon.com
Check prices at:
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Radeon HD 4850 2GBAmazon.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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