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Radeon HD 7870 XT vs Radeon RX 5500
Intro
The Radeon HD 7870 XT comes with a clock speed of 925 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1536 SPUs, 96 Texture Address Units, and 32 ROPs.Compare those specifications to the Radeon RX 5500, which uses a 7 nm design. AMD has clocked the core frequency at 1670 MHz. The GDDR6 RAM works at a frequency of 1750 MHz on this particular model. It features 1408 SPUs as well as 88 TAUs and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon RX 5500 |
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150 Watts |
| Radeon HD 7870 XT |
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185 Watts |
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Memory Bandwidth
Theoretically, the Radeon RX 5500 should perform a bit faster than the Radeon HD 7870 XT overall. (explain)
| Radeon RX 5500 |
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229376 MB/sec |
| Radeon HD 7870 XT |
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192000 MB/sec |
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Texel Rate
The Radeon RX 5500 should be a lot (approximately 65%) better at anisotropic filtering than the Radeon HD 7870 XT. (explain)| Radeon RX 5500 |
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146960 Mtexels/sec |
| Radeon HD 7870 XT |
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88800 Mtexels/sec |
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Pixel Rate
If running with a high resolution is important to you, then the Radeon RX 5500 is the winner, by a large margin. (explain)| Radeon RX 5500 |
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53440 Mpixels/sec |
| Radeon HD 7870 XT |
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29600 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 7870 XTAmazon.com
Check prices at:
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Radeon RX 5500Amazon.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 | Radeon HD 7870 XT | Radeon RX 5500 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | November 2012 | October 2019 |
| Code Name | Tahiti LE | Navi 14 XT |
| Memory | 2048 MB | 4096 MB |
| Core Speed | 925 MHz | 1670 MHz |
| Memory Speed | 6000 MHz | 3500 GB/s |
| Power (Max TDP) | 185 watts | 150 watts |
| Bandwidth | 192000 MB/sec | 229376 MB/sec |
| Texel Rate | 88800 Mtexels/sec | 146960 Mtexels/sec |
| Pixel Rate | 29600 Mpixels/sec | 53440 Mpixels/sec |
| Unified Shaders | 1536 | 1408 |
| Texture Mapping Units | 96 | 88 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR6 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 28 nm | 7 nm |
| Transistors | 4313 million | 6400 million |
| Bus | PCIe 3.0 x16 | PCIe 4.0 ×16 |
| DirectX Version | DirectX 11.1 | DirectX 12 |
| OpenGL Version | OpenGL 4.3 | OpenGL 4.6 |
Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 maximum amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.
Radeon HD 7870 XTAmazon.com
Check prices at:
|
Radeon RX 5500Amazon.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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