Radeon HD 7870 vs Radeon HD 8790M
When comparing Radeon HD 7870 and Radeon HD 8790M, 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 and Radeon HD 8790M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon HD 8790M is a Laptop Graphics Card
Note: Radeon HD 8790M 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 HD 8790M here:
Main Specs
Radeon HD 7870
Radeon HD 8790M
Power consumption (TDP)
175 Watt
Interface
MXM-A (3.0)
Supplementary power connectors
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
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Radeon HD 7870 and Radeon HD 8790M have maximum RAM of 2 GB.
Radeon HD 7870 is used in Desktops, and Radeon HD 8790M - in Laptops.
Radeon HD 7870 and Radeon HD 8790M are build with GCN architecture.
Core clock speed of Radeon HD 7870 is 150 MHz higher, than Radeon HD 8790M.
Radeon HD 7870 and Radeon HD 8790M are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7870 is 300 MHz higher, than Radeon HD 8790M.
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
3−4
ultra / 1080p
14−16
1−2
QHD / 1440p
9−10
0−1
4K / 2160p
6−7
−
low / 720p
45−50
14−16
medium / 1080p
30−33
6−7
The average gaming FPS of Radeon HD 7870 in Assassin's Creed Odyssey is 383% more, than Radeon HD 8790M.
high / 1080p
35−40
8−9
ultra / 1080p
30−35
6−7
QHD / 1440p
16−18
0−1
4K / 2160p
10−11
−
low / 720p
75−80
21−24
medium / 1080p
40−45
9−10
The average gaming FPS of Radeon HD 7870 in Battlefield 5 is 327% more, than Radeon HD 8790M.
low / 768p
50−55
45−50
high / 1080p
−
40−45
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7870 in Call of Duty: Warzone is 10% more, than Radeon HD 8790M.
low / 768p
240−250
120−130
medium / 768p
210−220
100−110
ultra / 1080p
130−140
50−55
QHD / 1440p
100−110
24−27
4K / 2160p
60−65
−
high / 768p
180−190
75−80
The average gaming FPS of Radeon HD 7870 in Counter-Strike: Global Offensive is 129% more, than Radeon HD 8790M.
low / 768p
60−65
70−75
ultra / 1080p
−
21−24
medium / 1080p
55−60
40−45
The average gaming FPS of Radeon HD 7870 in Cyberpunk 2077 is 5% more, than Radeon HD 8790M.
low / 768p
120−130
75−80
medium / 768p
110−120
55−60
ultra / 1080p
85−90
30−35
The average gaming FPS of Radeon HD 7870 in Dota 2 is 98% more, than Radeon HD 8790M.
high / 1080p
30−33
4−5
ultra / 1080p
27−30
4−5
QHD / 1440p
21−24
−
4K / 2160p
9−10
1−2
low / 720p
60−65
14−16
medium / 1080p
30−35
6−7
The average gaming FPS of Radeon HD 7870 in Far Cry 5 is 433% more, than Radeon HD 8790M.
high / 1080p
35−40
12−14
ultra / 1080p
30−33
7−8
QHD / 1440p
18−20
4−5
low / 720p
130−140
60−65
medium / 1080p
80−85
18−20
The average gaming FPS of Radeon HD 7870 in Fortnite is 190% more, than Radeon HD 8790M.
high / 1080p
40−45
8−9
ultra / 1080p
30−33
7−8
QHD / 1440p
18−20
0−1
4K / 2160p
14−16
−
low / 720p
75−80
21−24
medium / 1080p
45−50
10−11
The average gaming FPS of Radeon HD 7870 in Forza Horizon 4 is 308% more, than Radeon HD 8790M.
low / 768p
110−120
50−55
medium / 768p
100−110
−
high / 1080p
45−50
10−11
ultra / 1080p
20−22
4−5
QHD / 1440p
10−11
0−1
medium / 720p
−
40−45
The average gaming FPS of Radeon HD 7870 in Grand Theft Auto V is 177% more, than Radeon HD 8790M.
high / 1080p
14−16
2−3
ultra / 1080p
12−14
0−1
QHD / 1440p
10−12
−
4K / 2160p
4−5
0−1
low / 720p
45−50
9−10
medium / 1080p
21−24
4−5
The average gaming FPS of Radeon HD 7870 in Metro Exodus is 460% more, than Radeon HD 8790M.
low / 768p
120−130
85−90
high / 1080p
−
70−75
medium / 1080p
110−120
−
The average gaming FPS of Radeon HD 7870 in Minecraft is 43% more, than Radeon HD 8790M.
ultra / 1080p
14−16
12−14
low / 720p
75−80
30−35
medium / 1080p
18−20
14−16
The average gaming FPS of Radeon HD 7870 in PLAYERUNKNOWN'S BATTLEGROUNDS is 85% more, than Radeon HD 8790M.
high / 1080p
16−18
7−8
ultra / 1080p
10−12
4−5
QHD / 1440p
4−5
0−1
4K / 2160p
2−3
−
low / 720p
45−50
8−9
medium / 1080p
24−27
8−9
The average gaming FPS of Radeon HD 7870 in Red Dead Redemption 2 is 257% more, than Radeon HD 8790M.
low / 768p
85−90
20−22
medium / 768p
50−55
12−14
high / 1080p
30−33
7−8
ultra / 1080p
16−18
5−6
4K / 2160p
10−11
1−2
The average gaming FPS of Radeon HD 7870 in The Witcher 3: Wild Hunt is 333% more, than Radeon HD 8790M.
low / 768p
90−95
75−80
medium / 768p
60−65
40−45
ultra / 1080p
45−50
18−20
high / 768p
55−60
30−35
The average gaming FPS of Radeon HD 7870 in World of Tanks is 54% more, than Radeon HD 8790M.
Full Specs
Radeon HD 7870
Radeon HD 8790M
Architecture
GCN
GCN
Code name
Pitcairn XT
Mars XTX
Type
Desktop
Laptop
Release date
5 March 2012
16 November 2012
Pipelines
1280
384
Core clock speed
1000 MHz
850 MHz
Boost Clock
900 MHz
Transistor count
2800 Million
950 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
21.60
Floating-point performance
691.2 gflops
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
4500 MHz
Memory bandwidth
64 GB/s
Shared memory
-
-
DirectX
DirectX 11.1, Shader 5.1
12 (11_1)
Shader Model
5.1
OpenGL
4.6
OpenCL
1.2
Vulkan
1.2.131
Monero / XMR (CryptoNight)
0.39 kh/s
Bitcoin / BTC (SHA256)
80 Mh/s
Laptop size
medium sized
Eyefinity
+
Decred / DCR (Decred)
0.63 Gh/s
Ethereum / ETH (DaggerHashimoto)
16.6 Mh/s
Zcash / ZEC (Equihash)
145 Sol/s
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