Radeon HD 7850 vs Radeon HD 8790M
When choosing between Radeon HD 7850 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 7850 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 7850
Radeon HD 8790M
Power consumption (TDP)
225 Watt
Interface
PCIe 3.0 x16
MXM-A (3.0)
Supplementary power connectors
1x 6-pin
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
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Radeon HD 7850 is connected by PCIe 3.0 x16, and Radeon HD 8790M uses MXM-A (3.0) interface.
Radeon HD 7850 and Radeon HD 8790M have maximum RAM of 2 GB.
Radeon HD 7850 is used in Desktops, and Radeon HD 8790M - in Laptops.
Radeon HD 7850 is build with GCN 1.0 architecture, and Radeon HD 8790M - with GCN.
Radeon HD 7850 and Radeon HD 8790M are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 8790M is 3300 MHz higher, than Radeon HD 7850.
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
18−20
3−4
ultra / 1080p
10−12
1−2
QHD / 1440p
5−6
0−1
4K / 2160p
4−5
−
low / 720p
35−40
14−16
medium / 1080p
24−27
6−7
The average gaming FPS of Radeon HD 7850 in Assassin's Creed Odyssey is 283% more, than Radeon HD 8790M.
high / 1080p
30−33
8−9
ultra / 1080p
24−27
6−7
QHD / 1440p
10−11
0−1
4K / 2160p
7−8
−
low / 720p
60−65
21−24
medium / 1080p
30−35
9−10
The average gaming FPS of Radeon HD 7850 in Battlefield 5 is 245% 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 7850 in Call of Duty: Warzone is 10% more, than Radeon HD 8790M.
low / 768p
220−230
120−130
medium / 768p
190−200
100−110
ultra / 1080p
110−120
50−55
QHD / 1440p
80−85
24−27
4K / 2160p
40−45
−
high / 768p
160−170
75−80
The average gaming FPS of Radeon HD 7850 in Counter-Strike: Global Offensive is 102% more, than Radeon HD 8790M.
low / 768p
60−65
70−75
ultra / 1080p
45−50
21−24
medium / 1080p
55−60
40−45
The average gaming FPS of Radeon HD 7850 in Cyberpunk 2077 is 22% more, than Radeon HD 8790M.
low / 768p
110−120
75−80
medium / 768p
100−110
55−60
ultra / 1080p
75−80
30−35
The average gaming FPS of Radeon HD 7850 in Dota 2 is 80% more, than Radeon HD 8790M.
high / 1080p
21−24
4−5
ultra / 1080p
21−24
4−5
QHD / 1440p
18−20
−
4K / 2160p
7−8
1−2
low / 720p
50−55
14−16
medium / 1080p
24−27
6−7
The average gaming FPS of Radeon HD 7850 in Far Cry 5 is 333% more, than Radeon HD 8790M.
high / 1080p
30−35
12−14
ultra / 1080p
21−24
7−8
QHD / 1440p
14−16
4−5
low / 720p
110−120
60−65
medium / 1080p
65−70
18−20
The average gaming FPS of Radeon HD 7850 in Fortnite is 138% more, than Radeon HD 8790M.
high / 1080p
30−35
8−9
ultra / 1080p
24−27
7−8
QHD / 1440p
12−14
0−1
4K / 2160p
12−14
−
low / 720p
65−70
21−24
medium / 1080p
35−40
10−11
The average gaming FPS of Radeon HD 7850 in Forza Horizon 4 is 233% more, than Radeon HD 8790M.
low / 768p
100−105
50−55
medium / 768p
90−95
−
high / 1080p
35−40
10−11
ultra / 1080p
14−16
4−5
QHD / 1440p
6−7
0−1
medium / 720p
−
40−45
The average gaming FPS of Radeon HD 7850 in Grand Theft Auto V is 131% more, than Radeon HD 8790M.
high / 1080p
12−14
2−3
ultra / 1080p
9−10
0−1
4K / 2160p
2−3
0−1
low / 720p
35−40
9−10
medium / 1080p
16−18
4−5
The average gaming FPS of Radeon HD 7850 in Metro Exodus is 340% more, than Radeon HD 8790M.
low / 768p
110−120
85−90
high / 1080p
−
70−75
medium / 1080p
110−120
−
The average gaming FPS of Radeon HD 7850 in Minecraft is 32% more, than Radeon HD 8790M.
ultra / 1080p
14−16
12−14
low / 720p
65−70
30−35
medium / 1080p
18−20
14−16
The average gaming FPS of Radeon HD 7850 in PLAYERUNKNOWN'S BATTLEGROUNDS is 65% more, than Radeon HD 8790M.
high / 1080p
14−16
7−8
ultra / 1080p
10−11
4−5
QHD / 1440p
1−2
0−1
4K / 2160p
0−1
−
low / 720p
35−40
8−9
medium / 1080p
20−22
8−9
The average gaming FPS of Radeon HD 7850 in Red Dead Redemption 2 is 200% more, than Radeon HD 8790M.
low / 768p
70−75
20−22
medium / 768p
40−45
12−14
high / 1080p
24−27
7−8
ultra / 1080p
12−14
5−6
4K / 2160p
7−8
1−2
The average gaming FPS of Radeon HD 7850 in The Witcher 3: Wild Hunt is 255% more, than Radeon HD 8790M.
low / 768p
90−95
75−80
medium / 768p
60−65
40−45
ultra / 1080p
40−45
18−20
high / 768p
55−60
30−35
The average gaming FPS of Radeon HD 7850 in World of Tanks is 50% more, than Radeon HD 8790M.
Full Specs
Radeon HD 7850
Radeon HD 8790M
Architecture
GCN 1.0
GCN
Code name
Pitcairn
Mars XTX
Type
Desktop
Laptop
Release date
5 March 2012
16 November 2012
Pipelines
1024
384
Core clock speed
850 MHz
Boost Clock
1000 MHz
900 MHz
Transistor count
2,800 million
950 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
55.04
21.60
Floating-point performance
1,761 gflops
691.2 gflops
Length
210 mm
Memory bus width
256 Bit
128 Bit
Memory clock speed
1200 MHz
4500 MHz
Memory bandwidth
153.6 GB/s
64 GB/s
Shared memory
-
DirectX
12 (11_1)
Shader Model
5.1
5.1
OpenGL
4.6
4.6
OpenCL
1.2
1.2
Vulkan
1.2.131
FreeSync
+
Bus support
PCIe 2.1 x16
HDMI
+
Bitcoin / BTC (SHA256)
249 Mh/s
80 Mh/s
Laptop size
medium sized
Eyefinity
+
Design
reference
CrossFire
+
Ethereum / ETH (DaggerHashimoto)
12.5 Mh/s
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