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Radeon HD 4870 1GB vs Radeon RX 460 2GB
Intro
The Radeon HD 4870 1GB comes with a clock speed of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 256-bit memory bus, and makes use of a 55 nm design. It features 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.Compare that to the Radeon RX 460 2GB, which comes with clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 RAM. 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 1GB |
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150 Watts |
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Memory Bandwidth
Performance-wise, the Radeon HD 4870 1GB should theoretically be a small bit better than the Radeon RX 460 2GB in general. (explain)
| Radeon HD 4870 1GB |
|
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 will be a lot (about 103%) faster with regards to texture filtering than the Radeon HD 4870 1GB. (explain)| Radeon RX 460 2GB |
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61040 Mtexels/sec |
| Radeon HD 4870 1GB |
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30000 Mtexels/sec |
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Pixel Rate
If using a high resolution is important to you, then the Radeon RX 460 2GB is the winner, and very much so. (explain)| Radeon RX 460 2GB |
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17440 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
Radeon HD 4870 1GBAmazon.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 1GB | Radeon RX 460 2GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Jun 25, 2008 | August 2016 |
| Code Name | RV770 XT | Polaris 11 |
| Memory | 1024 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: Bandwidth is the maximum amount of data (measured in MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to 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 bandwidth is, the lower the potential to reach the maximum fill rate.
Radeon HD 4870 1GBAmazon.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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