Radeon HD 6870 vs Radeon HD 8790M
When choosing between Radeon HD 6870 and Radeon HD 8790M, 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 6870 and Radeon HD 8790M.
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 6870
Radeon HD 8790M
Power consumption (TDP)
151 Watt
Interface
PCIe 2.0 x16
MXM-A (3.0)
Supplementary power connectors
2x 6-pin
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
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Radeon HD 6870 is connected by PCIe 2.0 x16, and Radeon HD 8790M uses MXM-A (3.0) interface.
Radeon HD 8790M has 1 GB more memory, than Radeon HD 6870.
Radeon HD 6870 is used in Desktops, and Radeon HD 8790M - in Laptops.
Radeon HD 6870 is build with Terascale 2 architecture, and Radeon HD 8790M - with GCN.
Radeon HD 6870 is manufactured by 40 nm process technology, and Radeon HD 8790M - by 28 nm process technology.
Memory clock speed of Radeon HD 8790M is 3450 MHz higher, than Radeon HD 6870.
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
10−12
3−4
ultra / 1080p
6−7
1−2
QHD / 1440p
1−2
0−1
low / 720p
24−27
14−16
medium / 1080p
12−14
6−7
The average gaming FPS of Radeon HD 6870 in Assassin's Creed Odyssey is 133% more, than Radeon HD 8790M.
high / 1080p
18−20
8−9
ultra / 1080p
14−16
6−7
QHD / 1440p
1−2
0−1
low / 720p
35−40
21−24
medium / 1080p
20−22
9−10
The average gaming FPS of Radeon HD 6870 in Battlefield 5 is 109% more, than Radeon HD 8790M.
low / 768p
45−50
45−50
high / 1080p
−
40−45
QHD / 1440p
0−1
0−1
Radeon HD 6870 and Radeon HD 8790M have the same average FPS in Call of Duty: Warzone.
low / 768p
180−190
120−130
medium / 768p
140−150
100−110
ultra / 1080p
75−80
50−55
QHD / 1440p
40−45
24−27
4K / 2160p
30−33
−
high / 768p
110−120
75−80
The average gaming FPS of Radeon HD 6870 in Counter-Strike: Global Offensive is 46% more, than Radeon HD 8790M.
low / 768p
55−60
70−75
ultra / 1080p
30−33
21−24
medium / 1080p
45−50
40−45
Radeon HD 6870 and Radeon HD 8790M have the same average FPS in Cyberpunk 2077.
low / 768p
95−100
75−80
medium / 768p
75−80
55−60
ultra / 1080p
50−55
30−35
The average gaming FPS of Radeon HD 6870 in Dota 2 is 36% more, than Radeon HD 8790M.
high / 1080p
12−14
4−5
ultra / 1080p
12−14
4−5
4K / 2160p
5−6
1−2
low / 720p
27−30
14−16
medium / 1080p
14−16
6−7
The average gaming FPS of Radeon HD 6870 in Far Cry 5 is 150% more, than Radeon HD 8790M.
high / 1080p
20−22
12−14
ultra / 1080p
14−16
7−8
QHD / 1440p
−
4−5
low / 720p
80−85
60−65
medium / 1080p
35−40
18−20
The average gaming FPS of Radeon HD 6870 in Fortnite is 56% more, than Radeon HD 8790M.
high / 1080p
18−20
8−9
ultra / 1080p
14−16
7−8
QHD / 1440p
5−6
0−1
low / 720p
40−45
21−24
medium / 1080p
21−24
10−11
The average gaming FPS of Radeon HD 6870 in Forza Horizon 4 is 100% more, than Radeon HD 8790M.
low / 768p
70−75
50−55
medium / 768p
60−65
−
high / 1080p
21−24
10−11
ultra / 1080p
9−10
4−5
QHD / 1440p
0−1
0−1
medium / 720p
−
40−45
The average gaming FPS of Radeon HD 6870 in Grand Theft Auto V is 54% more, than Radeon HD 8790M.
high / 1080p
7−8
2−3
ultra / 1080p
5−6
0−1
4K / 2160p
1−2
0−1
low / 720p
21−24
9−10
medium / 1080p
9−10
4−5
The average gaming FPS of Radeon HD 6870 in Metro Exodus is 160% more, than Radeon HD 8790M.
low / 768p
100−110
85−90
high / 1080p
−
70−75
ultra / 1080p
90−95
−
medium / 1080p
100−105
−
The average gaming FPS of Radeon HD 6870 in Minecraft is 20% more, than Radeon HD 8790M.
high / 1080p
18−20
−
ultra / 1080p
16−18
12−14
low / 720p
45−50
30−35
medium / 1080p
21−24
14−16
The average gaming FPS of Radeon HD 6870 in PLAYERUNKNOWN'S BATTLEGROUNDS is 45% more, than Radeon HD 8790M.
high / 1080p
12−14
7−8
ultra / 1080p
8−9
4−5
QHD / 1440p
0−1
0−1
low / 720p
20−22
8−9
medium / 1080p
12−14
8−9
The average gaming FPS of Radeon HD 6870 in Red Dead Redemption 2 is 85% more, than Radeon HD 8790M.
low / 768p
40−45
20−22
medium / 768p
24−27
12−14
high / 1080p
14−16
7−8
ultra / 1080p
8−9
5−6
4K / 2160p
7−8
1−2
The average gaming FPS of Radeon HD 6870 in The Witcher 3: Wild Hunt is 111% more, than Radeon HD 8790M.
low / 768p
95−100
75−80
medium / 768p
55−60
40−45
ultra / 1080p
27−30
18−20
high / 768p
45−50
30−35
The average gaming FPS of Radeon HD 6870 in World of Tanks is 35% more, than Radeon HD 8790M.
Full Specs
Radeon HD 6870
Radeon HD 8790M
Architecture
Terascale 2
GCN
Code name
RV940 Barts
Mars XTX
Type
Desktop
Laptop
Release date
22 October 2010
16 November 2012
Pipelines
1120
384
Core clock speed
850 MHz
Boost Clock
900 MHz
900 MHz
Transistor count
1,700 million
950 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
50.40
21.60
Floating-point performance
2,016.0 gflops
691.2 gflops
Length
220 mm
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
4500 MHz
Memory bandwidth
134.4 GB/s
64 GB/s
Shared memory
-
-
DirectX
12 (11_1)
Shader Model
5.0
5.1
OpenGL
4.4
4.6
OpenCL
1.2
1.2
Vulkan
1.2.131
Bus support
PCIe 2.0 x16
HDMI
+
Bitcoin / BTC (SHA256)
213 Mh/s
80 Mh/s
Laptop size
medium sized
Eyefinity
+
Design
reference
CrossFire
+
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