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Radeon HD 4870 2GB vs Radeon RX 460 2GB
Intro
The Radeon HD 4870 2GB features a GPU core clock speed of 750 MHz, and the 2048 MB of GDDR5 RAM runs at 900 MHz through a 256-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 TAUs, and 16 ROPs.Compare those specifications to the Radeon RX 460 2GB, which uses a 14 nm design. AMD has clocked the core frequency at 1090 MHz. The GDDR5 memory runs at a frequency of 1750 MHz on this specific model. It features 896 SPUs along with 56 TAUs and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon RX 460 2GB |
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75 Watts |
| Radeon HD 4870 2GB |
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150 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 4870 2GB is 3% faster than the Radeon RX 460 2GB overall, because of its higher bandwidth. (explain)
| Radeon HD 4870 2GB |
|
115200 MB/sec |
| Radeon RX 460 2GB |
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112000 MB/sec |
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Texel Rate
The Radeon RX 460 2GB should be a lot (approximately 103%) faster with regards to AF than the Radeon HD 4870 2GB. (explain)| Radeon RX 460 2GB |
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61040 Mtexels/sec |
| Radeon HD 4870 2GB |
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30000 Mtexels/sec |
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Pixel Rate
If using high levels of AA is important to you, then the Radeon RX 460 2GB is a better choice, by far. (explain)| Radeon RX 460 2GB |
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17440 Mpixels/sec |
| Radeon HD 4870 2GB |
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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
Radeon HD 4870 2GBAmazon.com
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Radeon RX 460 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 | Radeon HD 4870 2GB | Radeon RX 460 2GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Jun 25, 2008 | August 2016 |
| Code Name | RV770 XT | Polaris 11 |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 750 MHz | 1090 MHz |
| Memory Speed | 3600 MHz | 7000 MHz |
| Power (Max TDP) | 150 watts | 75 watts |
| Bandwidth | 115200 MB/sec | 112000 MB/sec |
| Texel Rate | 30000 Mtexels/sec | 61040 Mtexels/sec |
| Pixel Rate | 12000 Mpixels/sec | 17440 Mpixels/sec |
| Unified Shaders | 800(160x5) | 896 |
| Texture Mapping Units | 40 | 56 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 55 nm | 14 nm |
| Transistors | 956 million | 3000 million |
| Bus | PCIe 2.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 10.1 | DirectX 12.0 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.5 |
Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core 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 applied per second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 potential to reach the maximum fill rate.
Radeon HD 4870 2GBAmazon.com
Check prices at:
|
Radeon RX 460 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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