Radeon HD 7870 XT vs Radeon R9 M390X
When comparing Radeon HD 7870 XT and Radeon R9 M390X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 7870 XT and Radeon R9 M390X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon HD 7870 XT
Radeon R9 M390X is a Laptop Graphics Card
Note: Radeon R9 M390X 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 M390X here:
Main Specs
| Radeon HD 7870 XT | Radeon R9 M390X | |
| Power consumption (TDP) | 185 Watt | 100 Watt |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Supplementary power connectors | 2x 6-pin | None |
| Memory type | GDDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Display Connectors | 1x DVI, 1x HDMI, 2x mini-DisplayPort | No outputs |
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- Radeon HD 7870 XT has 85% more power consumption, than Radeon R9 M390X.
- Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
- Radeon R9 M390X has 2 GB more memory, than Radeon HD 7870 XT.
- Radeon HD 7870 XT is used in Desktops, and Radeon R9 M390X - in Laptops.
- Radeon HD 7870 XT is build with GCN 1.0 architecture, and Radeon R9 M390X - with GCN 3.
- Core clock speed of Radeon HD 7870 XT is 202 MHz higher, than Radeon R9 M390X.
- Radeon HD 7870 XT and Radeon R9 M390X are manufactured by 28 nm process technology.
Game benchmarks
| high / 1080p | 35−40 | 21−24 |
| ultra / 1080p | 21−24 | 12−14 |
| QHD / 1440p | 16−18 | 8−9 |
| 4K / 2160p | 10−11 | 5−6 |
| low / 720p | 60−65 | 40−45 |
| medium / 1080p | 40−45 | 27−30 |
| The average gaming FPS of Radeon HD 7870 XT in Assassin's Creed Odyssey is 60% more, than Radeon R9 M390X. | ||
| high / 1080p | 55−60 | 35−40 |
| ultra / 1080p | 45−50 | 30−35 |
| QHD / 1440p | 35−40 | 14−16 |
| 4K / 2160p | 18−20 | 9−10 |
| low / 720p | 100−110 | 70−75 |
| medium / 1080p | 60−65 | 40−45 |
| The average gaming FPS of Radeon HD 7870 XT in Battlefield 5 is 58% more, than Radeon R9 M390X. | ||
| low / 768p | 50−55 | 50−55 |
| QHD / 1440p | 0−1 | 0−1 |
| Radeon HD 7870 XT and Radeon R9 M390X have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 250−260 | 230−240 |
| medium / 768p | 220−230 | 210−220 |
| ultra / 1080p | 180−190 | 120−130 |
| QHD / 1440p | 110−120 | 100−110 |
| 4K / 2160p | 70−75 | 55−60 |
| high / 768p | 210−220 | 170−180 |
| The average gaming FPS of Radeon HD 7870 XT in Counter-Strike: Global Offensive is 16% more, than Radeon R9 M390X. | ||
| low / 768p | 60−65 | 60−65 |
| ultra / 1080p | − | 55−60 |
| medium / 1080p | 55−60 | 55−60 |
| Radeon HD 7870 XT and Radeon R9 M390X have the same average FPS in Cyberpunk 2077. | ||
| low / 768p | 120−130 | 120−130 |
| medium / 768p | 110−120 | 110−120 |
| ultra / 1080p | 100−110 | 85−90 |
| The average gaming FPS of Radeon HD 7870 XT in Dota 2 is 5% more, than Radeon R9 M390X. | ||
| high / 1080p | 45−50 | 27−30 |
| ultra / 1080p | 40−45 | 24−27 |
| QHD / 1440p | 27−30 | 20−22 |
| 4K / 2160p | 14−16 | 9−10 |
| low / 720p | 80−85 | 55−60 |
| medium / 1080p | 45−50 | 30−33 |
| The average gaming FPS of Radeon HD 7870 XT in Far Cry 5 is 53% more, than Radeon R9 M390X. | ||
| high / 1080p | 60−65 | 35−40 |
| ultra / 1080p | 45−50 | 27−30 |
| QHD / 1440p | 27−30 | 16−18 |
| 4K / 2160p | 27−30 | − |
| low / 720p | 180−190 | 130−140 |
| medium / 1080p | 110−120 | 75−80 |
| The average gaming FPS of Radeon HD 7870 XT in Fortnite is 47% more, than Radeon R9 M390X. | ||
| high / 1080p | 60−65 | 35−40 |
| ultra / 1080p | 45−50 | 27−30 |
| QHD / 1440p | 30−35 | 16−18 |
| 4K / 2160p | 24−27 | 14−16 |
| low / 720p | 100−110 | 75−80 |
| medium / 1080p | 65−70 | 40−45 |
| The average gaming FPS of Radeon HD 7870 XT in Forza Horizon 4 is 55% more, than Radeon R9 M390X. | ||
| low / 768p | 140−150 | 110−120 |
| medium / 768p | 120−130 | 95−100 |
| high / 1080p | 70−75 | 45−50 |
| ultra / 1080p | 30−35 | 18−20 |
| QHD / 1440p | 21−24 | 9−10 |
| The average gaming FPS of Radeon HD 7870 XT in Grand Theft Auto V is 38% more, than Radeon R9 M390X. | ||
| high / 1080p | 24−27 | 14−16 |
| ultra / 1080p | 20−22 | 10−12 |
| QHD / 1440p | 16−18 | 10−12 |
| 4K / 2160p | 8−9 | 3−4 |
| low / 720p | 65−70 | 40−45 |
| medium / 1080p | 30−35 | 20−22 |
| The average gaming FPS of Radeon HD 7870 XT in Metro Exodus is 64% more, than Radeon R9 M390X. | ||
| low / 768p | 130−140 | 120−130 |
| medium / 1080p | 120−130 | 110−120 |
| The average gaming FPS of Radeon HD 7870 XT in Minecraft is 8% more, than Radeon R9 M390X. | ||
| ultra / 1080p | 14−16 | 14−16 |
| low / 720p | 100−110 | 75−80 |
| medium / 1080p | 18−20 | 18−20 |
| The average gaming FPS of Radeon HD 7870 XT in PLAYERUNKNOWN'S BATTLEGROUNDS is 24% more, than Radeon R9 M390X. | ||
| high / 1080p | 24−27 | 16−18 |
| ultra / 1080p | 16−18 | 10−12 |
| QHD / 1440p | 10−11 | 3−4 |
| 4K / 2160p | 7−8 | 2−3 |
| low / 720p | 65−70 | 40−45 |
| medium / 1080p | 35−40 | 21−24 |
| The average gaming FPS of Radeon HD 7870 XT in Red Dead Redemption 2 is 68% more, than Radeon R9 M390X. | ||
| low / 768p | 130−140 | 80−85 |
| medium / 768p | 85−90 | 50−55 |
| high / 1080p | 45−50 | 27−30 |
| ultra / 1080p | 24−27 | 16−18 |
| 4K / 2160p | 16−18 | 9−10 |
| The average gaming FPS of Radeon HD 7870 XT in The Witcher 3: Wild Hunt is 63% more, than Radeon R9 M390X. | ||
| low / 768p | 90−95 | 90−95 |
| medium / 768p | 60−65 | 60−65 |
| ultra / 1080p | 50−55 | 40−45 |
| high / 768p | 60−65 | 55−60 |
| The average gaming FPS of Radeon HD 7870 XT in World of Tanks is 6% more, than Radeon R9 M390X. | ||
Full Specs
| Radeon HD 7870 XT | Radeon R9 M390X | |
| Architecture | GCN 1.0 | GCN 3 |
| Code name | Tahiti | Amethyst (XT) / Tonga |
| Type | Desktop | Laptop |
| Release date | 19 November 2012 | 9 June 2015 |
| Pipelines | 1536 | 2048 |
| Core clock speed | 925 MHz | 723 MHz |
| Boost Clock | 975 MHz | |
| Transistor count | 4,313 million | 5,000 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 93.60 | 92.54 |
| Floating-point performance | 2,995 gflops | 2,961 gflops |
| Length | 267 mm | |
| Memory bus width | 256 Bit | 256 Bit |
| Memory clock speed | 6000 MHz | |
| Memory bandwidth | 192.0 GB/s | 160.0 GB/s |
| Shared memory | - | |
| DirectX | 12 (11_1) | |
| Shader Model | 5.1 | 6.3 |
| 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 | |
| Laptop size | large | |
| Eyefinity | + | |
| HD3D | + | |
| PowerTune | + | |
| DualGraphics | + | |
| ZeroCore | + | |
| Switchable graphics | + | |
| Mantle | + | |
| Ethereum / ETH (DaggerHashimoto) | 14.5 Mh/s | |
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