Radeon HD 7870 XT vs Radeon R9 M390
If you are going to buy a new graphics card and are choosing between Radeon HD 7870 XT and Radeon R9 M390, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 7870 XT stacks up against Radeon R9 M390, check out specs charts below.
Radeon HD 7870 XT
Radeon R9 M390 is a Laptop Graphics Card
Note: Radeon R9 M390 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon R9 M390 here:
Main Specs
| Radeon HD 7870 XT | Radeon R9 M390 | |
| Power consumption (TDP) | 185 Watt | |
| Interface | PCIe 3.0 x16 | |
| Supplementary power connectors | 2x 6-pin | |
| Memory type | GDDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 2 GB |
| Display Connectors | 1x DVI, 1x HDMI, 2x mini-DisplayPort | |
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- Radeon HD 7870 XT and Radeon R9 M390 have maximum RAM of 2 GB.
- Radeon HD 7870 XT is used in Desktops, and Radeon R9 M390 - in Laptops.
- Radeon HD 7870 XT is build with GCN 1.0 architecture, and Radeon R9 M390 - with GCN.
- Radeon HD 7870 XT and Radeon R9 M390 are manufactured by 28 nm process technology.
Game benchmarks
| high / 1080p | 35−40 | 18−20 |
| ultra / 1080p | 21−24 | 10−11 |
| QHD / 1440p | 16−18 | 5−6 |
| 4K / 2160p | 10−11 | 4−5 |
| low / 720p | 60−65 | 35−40 |
| medium / 1080p | 40−45 | 21−24 |
| The average gaming FPS of Radeon HD 7870 XT in Assassin's Creed Odyssey is 100% more, than Radeon R9 M390. | ||
| high / 1080p | 55−60 | 27−30 |
| ultra / 1080p | 45−50 | 24−27 |
| QHD / 1440p | 35−40 | 10−12 |
| 4K / 2160p | 18−20 | 7−8 |
| low / 720p | 100−110 | 60−65 |
| medium / 1080p | 60−65 | 30−35 |
| The average gaming FPS of Radeon HD 7870 XT in Battlefield 5 is 100% more, than Radeon R9 M390. | ||
| low / 768p | 50−55 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of Radeon HD 7870 XT in Call of Duty: Warzone is 10% more, than Radeon R9 M390. | ||
| low / 768p | 250−260 | 220−230 |
| medium / 768p | 220−230 | 190−200 |
| ultra / 1080p | 180−190 | 110−120 |
| QHD / 1440p | 110−120 | 65−70 |
| 4K / 2160p | 70−75 | 35−40 |
| high / 768p | 210−220 | 150−160 |
| The average gaming FPS of Radeon HD 7870 XT in Counter-Strike: Global Offensive is 34% more, than Radeon R9 M390. | ||
| low / 768p | 60−65 | 55−60 |
| ultra / 1080p | − | 45−50 |
| medium / 1080p | 55−60 | 45−50 |
| The average gaming FPS of Radeon HD 7870 XT in Cyberpunk 2077 is 15% more, than Radeon R9 M390. | ||
| low / 768p | 120−130 | 110−120 |
| medium / 768p | 110−120 | 100−110 |
| ultra / 1080p | 100−110 | 70−75 |
| The average gaming FPS of Radeon HD 7870 XT in Dota 2 is 18% more, than Radeon R9 M390. | ||
| high / 1080p | 45−50 | 21−24 |
| ultra / 1080p | 40−45 | 18−20 |
| QHD / 1440p | 27−30 | 16−18 |
| 4K / 2160p | 14−16 | 7−8 |
| low / 720p | 80−85 | 45−50 |
| medium / 1080p | 45−50 | 21−24 |
| The average gaming FPS of Radeon HD 7870 XT in Far Cry 5 is 95% more, than Radeon R9 M390. | ||
| high / 1080p | 60−65 | 27−30 |
| ultra / 1080p | 45−50 | 21−24 |
| QHD / 1440p | 27−30 | 16−18 |
| 4K / 2160p | 27−30 | − |
| low / 720p | 180−190 | 110−120 |
| medium / 1080p | 110−120 | 60−65 |
| The average gaming FPS of Radeon HD 7870 XT in Fortnite is 77% more, than Radeon R9 M390. | ||
| high / 1080p | 60−65 | 30−33 |
| ultra / 1080p | 45−50 | 21−24 |
| QHD / 1440p | 30−35 | 12−14 |
| 4K / 2160p | 24−27 | 10−12 |
| low / 720p | 100−110 | 60−65 |
| medium / 1080p | 65−70 | 30−35 |
| The average gaming FPS of Radeon HD 7870 XT in Forza Horizon 4 is 100% more, than Radeon R9 M390. | ||
| low / 768p | 140−150 | 95−100 |
| medium / 768p | 120−130 | 85−90 |
| high / 1080p | 70−75 | 35−40 |
| ultra / 1080p | 30−35 | 14−16 |
| QHD / 1440p | 21−24 | 5−6 |
| The average gaming FPS of Radeon HD 7870 XT in Grand Theft Auto V is 64% more, than Radeon R9 M390. | ||
| high / 1080p | 24−27 | 10−12 |
| ultra / 1080p | 20−22 | 9−10 |
| QHD / 1440p | 16−18 | − |
| 4K / 2160p | 8−9 | 3−4 |
| low / 720p | 65−70 | 35−40 |
| medium / 1080p | 30−35 | 14−16 |
| The average gaming FPS of Radeon HD 7870 XT in Metro Exodus is 106% more, than Radeon R9 M390. | ||
| low / 768p | 130−140 | 110−120 |
| medium / 1080p | 120−130 | 110−120 |
| The average gaming FPS of Radeon HD 7870 XT in Minecraft is 13% more, than Radeon R9 M390. | ||
| high / 1080p | − | 24−27 |
| ultra / 1080p | 14−16 | 18−20 |
| low / 720p | 100−110 | 65−70 |
| medium / 1080p | 18−20 | 27−30 |
| The average gaming FPS of Radeon HD 7870 XT in PLAYERUNKNOWN'S BATTLEGROUNDS is 21% more, than Radeon R9 M390. | ||
| high / 1080p | 24−27 | 14−16 |
| ultra / 1080p | 16−18 | 10−11 |
| QHD / 1440p | 10−11 | 0−1 |
| 4K / 2160p | 7−8 | − |
| low / 720p | 65−70 | 30−35 |
| medium / 1080p | 35−40 | 18−20 |
| The average gaming FPS of Radeon HD 7870 XT in Red Dead Redemption 2 is 89% more, than Radeon R9 M390. | ||
| low / 768p | 130−140 | 65−70 |
| medium / 768p | 85−90 | 40−45 |
| high / 1080p | 45−50 | 21−24 |
| ultra / 1080p | 24−27 | 12−14 |
| 4K / 2160p | 16−18 | 9−10 |
| The average gaming FPS of Radeon HD 7870 XT in The Witcher 3: Wild Hunt is 100% more, than Radeon R9 M390. | ||
| low / 768p | 90−95 | 100−110 |
| medium / 768p | 60−65 | 65−70 |
| ultra / 1080p | 50−55 | 35−40 |
| high / 768p | 60−65 | 55−60 |
| The average gaming FPS of Radeon HD 7870 XT in World of Tanks is 1% more, than Radeon R9 M390. | ||
Full Specs
| Radeon HD 7870 XT | Radeon R9 M390 | |
| Architecture | GCN 1.0 | GCN |
| Code name | Tahiti | Pitcairn |
| Type | Desktop | Laptop |
| Release date | 19 November 2012 | 9 June 2015 |
| Pipelines | 1536 | 1024 |
| Core clock speed | 925 MHz | |
| Boost Clock | 975 MHz | |
| Transistor count | 4,313 million | 5000 Million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 93.60 | |
| Floating-point performance | 2,995 gflops | |
| Length | 267 mm | |
| Memory bus width | 256 Bit | 256 Bit |
| Memory clock speed | 6000 MHz | |
| Memory bandwidth | 192.0 GB/s | |
| Shared memory | - | |
| DirectX | 12 (11_1) | |
| Shader Model | 5.1 | |
| OpenGL | 4.6 | 4.4 |
| OpenCL | 1.2 | Not Listed |
| Vulkan | 1.2.131 | |
| FreeSync | + | |
| Bus support | PCIe 3.0 | |
| Bitcoin / BTC (SHA256) | 346 Mh/s | 242 Mh/s |
| Laptop size | large | |
| Eyefinity | + | |
| HD3D | + | |
| PowerTune | + | |
| DualGraphics | + | |
| ZeroCore | + | |
| Switchable graphics | + | |
| Mantle | + | |
| Ethereum / ETH (DaggerHashimoto) | 14.5 Mh/s | |
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