Radeon HD 7870 vs Radeon R9 M390X
When choosing between Radeon HD 7870 and Radeon R9 M390X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon HD 7870 and Radeon R9 M390X.
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
Radeon R9 M390X
Power consumption (TDP)
175 Watt
100 Watt
Interface
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
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Radeon HD 7870 has 75% more power consumption, than Radeon R9 M390X.
Radeon R9 M390X has 2 GB more memory, than Radeon HD 7870.
Radeon HD 7870 is used in Desktops, and Radeon R9 M390X - in Laptops.
Radeon HD 7870 is build with GCN architecture, and Radeon R9 M390X - with GCN 3.
Core clock speed of Radeon HD 7870 is 277 MHz higher, than Radeon R9 M390X.
Radeon HD 7870 and Radeon R9 M390X are manufactured by 28 nm process technology.
Game benchmarks
Assassin's Creed Odyssey
Battlefield 5
Call of Duty: Warzone
Counter-Strike: Global Offensive
Cyberpunk 2077
Dota 2
Far Cry 5
Fortnite
Forza Horizon 4
Grand Theft Auto V
Metro Exodus
Minecraft
PLAYERUNKNOWN'S BATTLEGROUNDS
Red Dead Redemption 2
The Witcher 3: Wild Hunt
World of Tanks
high / 1080p
24−27
21−24
ultra / 1080p
14−16
12−14
QHD / 1440p
9−10
8−9
4K / 2160p
6−7
5−6
low / 720p
45−50
40−45
medium / 1080p
30−33
27−30
The average gaming FPS of Radeon HD 7870 in Assassin's Creed Odyssey is 10% more, than Radeon R9 M390X.
high / 1080p
35−40
35−40
ultra / 1080p
30−35
30−35
QHD / 1440p
16−18
14−16
4K / 2160p
10−11
9−10
low / 720p
75−80
70−75
medium / 1080p
40−45
40−45
The average gaming FPS of Radeon HD 7870 in Battlefield 5 is 5% more, than Radeon R9 M390X.
low / 768p
50−55
50−55
QHD / 1440p
0−1
0−1
Radeon HD 7870 and Radeon R9 M390X have the same average FPS in Call of Duty: Warzone.
low / 768p
240−250
230−240
medium / 768p
210−220
210−220
ultra / 1080p
130−140
120−130
QHD / 1440p
100−110
100−110
4K / 2160p
60−65
55−60
high / 768p
180−190
170−180
The average gaming FPS of Radeon HD 7870 in Counter-Strike: Global Offensive is 3% more, than Radeon R9 M390X.
low / 768p
60−65
60−65
ultra / 1080p
−
55−60
medium / 1080p
55−60
55−60
Radeon HD 7870 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
85−90
85−90
Radeon HD 7870 and Radeon R9 M390X have the same average FPS in Dota 2.
high / 1080p
30−33
27−30
ultra / 1080p
27−30
24−27
QHD / 1440p
21−24
20−22
4K / 2160p
9−10
9−10
low / 720p
60−65
55−60
medium / 1080p
30−35
30−33
The average gaming FPS of Radeon HD 7870 in Far Cry 5 is 10% more, than Radeon R9 M390X.
high / 1080p
35−40
35−40
ultra / 1080p
30−33
27−30
QHD / 1440p
18−20
16−18
low / 720p
130−140
130−140
medium / 1080p
80−85
75−80
The average gaming FPS of Radeon HD 7870 in Fortnite is 3% more, than Radeon R9 M390X.
high / 1080p
40−45
35−40
ultra / 1080p
30−33
27−30
QHD / 1440p
18−20
16−18
4K / 2160p
14−16
14−16
low / 720p
75−80
75−80
medium / 1080p
45−50
40−45
The average gaming FPS of Radeon HD 7870 in Forza Horizon 4 is 5% more, than Radeon R9 M390X.
low / 768p
110−120
110−120
medium / 768p
100−110
95−100
high / 1080p
45−50
45−50
ultra / 1080p
20−22
18−20
QHD / 1440p
10−11
9−10
The average gaming FPS of Radeon HD 7870 in Grand Theft Auto V is 3% more, than Radeon R9 M390X.
high / 1080p
14−16
14−16
ultra / 1080p
12−14
10−12
QHD / 1440p
10−12
10−12
4K / 2160p
4−5
3−4
low / 720p
45−50
40−45
medium / 1080p
21−24
20−22
The average gaming FPS of Radeon HD 7870 in Metro Exodus is 5% more, than Radeon R9 M390X.
low / 768p
120−130
120−130
medium / 1080p
110−120
110−120
Radeon HD 7870 and Radeon R9 M390X have the same average FPS in Minecraft.
ultra / 1080p
14−16
14−16
low / 720p
75−80
75−80
medium / 1080p
18−20
18−20
Radeon HD 7870 and Radeon R9 M390X have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
high / 1080p
16−18
16−18
ultra / 1080p
10−12
10−12
QHD / 1440p
4−5
3−4
4K / 2160p
2−3
2−3
low / 720p
45−50
40−45
medium / 1080p
24−27
21−24
The average gaming FPS of Radeon HD 7870 in Red Dead Redemption 2 is 12% more, than Radeon R9 M390X.
low / 768p
85−90
80−85
medium / 768p
50−55
50−55
high / 1080p
30−33
27−30
ultra / 1080p
16−18
16−18
4K / 2160p
10−11
9−10
The average gaming FPS of Radeon HD 7870 in The Witcher 3: Wild Hunt is 2% more, than Radeon R9 M390X.
low / 768p
90−95
90−95
medium / 768p
60−65
60−65
ultra / 1080p
45−50
40−45
high / 768p
55−60
55−60
The average gaming FPS of Radeon HD 7870 in World of Tanks is 3% more, than Radeon R9 M390X.
Full Specs
Radeon HD 7870
Radeon R9 M390X
Architecture
GCN
GCN 3
Code name
Pitcairn XT
Amethyst (XT) / Tonga
Type
Desktop
Laptop
Release date
5 March 2012
9 June 2015
Pipelines
1280
2048
Core clock speed
1000 MHz
723 MHz
Transistor count
2800 Million
5,000 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
92.54
Floating-point performance
2,961 gflops
Memory bus width
256 Bit
256 Bit
Memory clock speed
4800 MHz
Memory bandwidth
160.0 GB/s
Shared memory
-
-
DirectX
DirectX 11.1, Shader 5.1
Shader Model
6.3
OpenGL
4.4
OpenCL
Not Listed
Vulkan
+
Monero / XMR (CryptoNight)
0.39 kh/s
FreeSync
+
Bus support
PCIe 3.0
Laptop size
large
Eyefinity
+
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
Decred / DCR (Decred)
0.63 Gh/s
Ethereum / ETH (DaggerHashimoto)
16.6 Mh/s
Zcash / ZEC (Equihash)
145 Sol/s
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