 |
 |
Radeon HD 7970 vs Radeon RX 5500
Intro
The Radeon HD 7970 has a core clock frequency of 925 MHz and a GDDR5 memory frequency of 1375 MHz. It also makes use of a 384-bit bus, and makes use of a 28 nm design. It is made up of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.Compare those specifications to the Radeon RX 5500, which makes use of a 7 nm design. AMD has clocked the core frequency at 1670 MHz. The GDDR6 RAM runs at a frequency of 1750 MHz on this specific model. It features 1408 SPUs along with 88 Texture Address Units and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon RX 5500 |
|
150 Watts |
| Radeon HD 7970 |
|
250 Watts |
|
|
Memory Bandwidth
As far as performance goes, the Radeon HD 7970 should in theory be just a bit better than the Radeon RX 5500 overall. (explain)
| Radeon HD 7970 |
|
264000 MB/sec |
| Radeon RX 5500 |
|
229376 MB/sec |
|
|
Texel Rate
The Radeon RX 5500 is quite a bit (about 24%) better at AF than the Radeon HD 7970. (explain)| Radeon RX 5500 |
|
146960 Mtexels/sec |
| Radeon HD 7970 |
|
118400 Mtexels/sec |
|
|
Pixel Rate
If using a high screen resolution is important to you, then the Radeon RX 5500 is a better choice, and very much so. (explain)| Radeon RX 5500 |
|
53440 Mpixels/sec |
| Radeon HD 7970 |
|
29600 Mpixels/sec |
|
|
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 7970Amazon.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.
Specifications
| Model | Radeon HD 7970 | Radeon RX 5500 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | January 2012 | October 2019 |
| Code Name | Tahiti XT | Navi 14 XT |
| Memory | 3072 MB | 4096 MB |
| Core Speed | 925 MHz | 1670 MHz |
| Memory Speed | 5500 MHz | 3500 GB/s |
| Power (Max TDP) | 250 watts | 150 watts |
| Bandwidth | 264000 MB/sec | 229376 MB/sec |
| Texel Rate | 118400 Mtexels/sec | 146960 Mtexels/sec |
| Pixel Rate | 29600 Mpixels/sec | 53440 Mpixels/sec |
| Unified Shaders | 2048 | 1408 |
| Texture Mapping Units | 128 | 88 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR6 |
| Bus Width | 384-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 4.2 | OpenGL 4.6 |
Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour 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 is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.
Radeon HD 7970Amazon.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.
|
Comments
Be the first to leave a comment!