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Radeon HD 4870 2GB vs Radeon RX 460 2GB
Intro
The Radeon HD 4870 2GB features a clock frequency of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 256-bit bus, and uses a 55 nm design. It is comprised of 800(160x5) SPUs, 40 Texture Address Units, and 16 ROPs.Compare all that to the Radeon RX 460 2GB, which uses a 14 nm design. AMD has clocked the core speed at 1090 MHz. The GDDR5 RAM runs at a frequency of 1750 MHz on this particular card. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.
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
Performance-wise, the Radeon HD 4870 2GB should in theory be just a bit better than the Radeon RX 460 2GB in general. (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%) more effective at AF than the Radeon HD 4870 2GB. (explain)| Radeon RX 460 2GB |
|
61040 Mtexels/sec |
| Radeon HD 4870 2GB |
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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 Radeon RX 460 2GB is the winner, 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: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR 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 AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max 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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