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Radeon HD 7850 vs Radeon HD 7870
Intro
The Radeon HD 7850 has a clock speed of 860 MHz and a GDDR5 memory speed of 1200 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 32 ROPs.Compare those specs to the Radeon HD 7870, which features a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.
Benchmarks
These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
3DMark Fire Strike Graphics Score
| Radeon HD 7870 |
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6230 points |
| Radeon HD 7850 |
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5200 points |
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Zcash Mining Hash Rate
| Radeon HD 7870 |
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172 Sol/s |
| Radeon HD 7850 |
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171 Sol/s |
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Ethereum Mining Hash Rate
| Radeon HD 7870 |
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16 Mh/s |
| Radeon HD 7850 |
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13 Mh/s |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7850 |
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130 Watts |
| Radeon HD 7870 |
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175 Watts |
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Memory Bandwidth
Both cards have exactly the same bandwidth, so theoretically they should have the same performance. (explain)
Texel Rate
The Radeon HD 7870 will be quite a bit (more or less 45%) better at texture filtering than the Radeon HD 7850. (explain)| Radeon HD 7870 |
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80000 Mtexels/sec |
| Radeon HD 7850 |
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55040 Mtexels/sec |
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Pixel Rate
If running with a high screen resolution is important to you, then the Radeon HD 7870 is a better choice, not by a very large margin though. (explain)| Radeon HD 7870 |
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32000 Mpixels/sec |
| Radeon HD 7850 |
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27520 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 7850Amazon.com
Check prices at:
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Radeon HD 7870Amazon.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 7850 | Radeon HD 7870 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | March 2012 | March 2012 |
| Code Name | Pitcairn Pro | Pitcairn XT |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 860 MHz | 1000 MHz |
| Memory Speed | 4800 MHz | 4800 MHz |
| Power (Max TDP) | 130 watts | 175 watts |
| Bandwidth | 153600 MB/sec | 153600 MB/sec |
| Texel Rate | 55040 Mtexels/sec | 80000 Mtexels/sec |
| Pixel Rate | 27520 Mpixels/sec | 32000 Mpixels/sec |
| Unified Shaders | 1024 | 1280 |
| Texture Mapping Units | 64 | 80 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 28 nm | 28 nm |
| Transistors | 2800 million | 2800 million |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11.1 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.2 | OpenGL 4.2 |
Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, 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 number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number 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 filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.
Radeon HD 7850Amazon.com
Check prices at:
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Radeon HD 7870Amazon.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.
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Comments
5 Responses to “Radeon HD 7850 vs Radeon HD 7870”[...] Radeon HD 7850 vs Radeon HD 7870 – Performance Comparison Benchmarks @ Hardware Compare __________________ "Alle Menschen haben Recht, ZUMINDEST GLAUBEN SIE DAS!" (Albert Einstein) [...]
[...] Originally Posted by colinquek An update, i go t the ASUS 7850. Good card, and did some perfmon test on my pc, other than FPS increased, nothing else pretty much changed. Which is a good thing. Thanks all the bros for your advice. If you were a lil earlier, many were dumping 6970 for as cheap as 400 bucks. (Non-ref) Radeon HD 7850 vs Radeon HD 7870 – Performance Comparison Benchmarks @ Hardware Compare [...]
hello, i wanted to ask that would it be wise to get an hd7870 instead of 7850. i work in different 3d creation softwares.
thank you
[...] okay aber wie gesagt wäre die 7870 besser. Hier einmal ein kleiner Vergleich der 7850 mit der 7870 Vergleich 7850 mit 7870 Das Mainboard ist auch noch okay, allerdings kann man damit zwar kein SLI/Crossfire betreiben, [...]
[...] jedoch finde ich das die ca. 40-50€ für die 7870 es mehr als wert sind. Gruß Junatic PS: Vergleich 7850 mit 7870 2048MB Sapphire Radeon HD 7850 2048MB XFX Radeon HD 7850 Core Edition mit Doppellüfter 1024MB XFX [...]