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GeForce GTX 460 (OEM) vs Radeon HD 4870 1GB
Intro
The GeForce GTX 460 (OEM) features a core clock speed of 650 MHz and a GDDR5 memory speed of 850 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It features 336 SPUs, 56 TAUs, and 32 Raster Operation Units.Compare that to the Radeon HD 4870 1GB, which features a GPU core clock speed of 750 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 256-bit bus. It also features 800(160x5) Stream Processors, 40 TAUs, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
In theory, the Radeon HD 4870 1GB should be just a bit faster than the GeForce GTX 460 (OEM) overall. (explain)
| Radeon HD 4870 1GB |
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115200 MB/sec |
| GeForce GTX 460 (OEM) |
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108800 MB/sec |
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Texel Rate
The GeForce GTX 460 (OEM) is much (approximately 21%) better at anisotropic filtering than the Radeon HD 4870 1GB. (explain)| GeForce GTX 460 (OEM) |
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36400 Mtexels/sec |
| Radeon HD 4870 1GB |
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30000 Mtexels/sec |
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Pixel Rate
If using a high screen resolution is important to you, then the GeForce GTX 460 (OEM) is the winner, by far. (explain)| GeForce GTX 460 (OEM) |
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20800 Mpixels/sec |
| Radeon HD 4870 1GB |
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12000 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 460 (OEM)Amazon.com
Check prices at:
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Radeon HD 4870 1GBAmazon.com
Check prices at:
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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 460 (OEM) | Radeon HD 4870 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | October 2010 | Jun 25, 2008 |
| Code Name | GF104 | RV770 XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 650 MHz | 750 MHz |
| Memory Speed | 3400 MHz | 3600 MHz |
| Power (Max TDP) | 150 watts | 150 watts |
| Bandwidth | 108800 MB/sec | 115200 MB/sec |
| Texel Rate | 36400 Mtexels/sec | 30000 Mtexels/sec |
| Pixel Rate | 20800 Mpixels/sec | 12000 Mpixels/sec |
| Unified Shaders | 336 | 800(160x5) |
| Texture Mapping Units | 56 | 40 |
| Render Output Units | 32 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 1950 million | 956 million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 11 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 3.0 |
Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must 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 anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units of the card by the core 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 in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few 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 GTX 460 (OEM)Amazon.com
Check prices at:
|
Radeon HD 4870 1GBAmazon.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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