Radeon HD 7850M vs Radeon RX 640
When comparing Radeon HD 7850M and Radeon RX 640, 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 7850M and Radeon RX 640 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon HD 7850M and Radeon RX 640 are Laptop Graphics Cards
Note: Radeon HD 7850M and Radeon RX 640 are only used in laptop graphics. They have 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 7850M or Radeon RX 640 here:
Main Specs
Radeon HD 7850M
Radeon RX 640
Power consumption (TDP)
40 Watt
50 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
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Radeon RX 640 has 25% more power consumption, than Radeon HD 7850M.
Radeon HD 7850M is connected by PCIe 3.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
Radeon RX 640 has 2 GB more memory, than Radeon HD 7850M.
Both cards are used in Laptops.
Radeon HD 7850M is build with GCN architecture, and Radeon RX 640 - with Polaris.
Core clock speed of Radeon RX 640 is 543 MHz higher, than Radeon HD 7850M.
Radeon HD 7850M is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
Memory clock speed of Radeon RX 640 is 2000 MHz higher, than Radeon HD 7850M.
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
6−7
5−6
ultra / 1080p
3−4
3−4
QHD / 1440p
0−1
2−3
low / 720p
14−16
16−18
medium / 1080p
7−8
7−8
Radeon HD 7850M and Radeon RX 640 have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
10−12
10−12
ultra / 1080p
9−10
8−9
QHD / 1440p
0−1
0−1
low / 720p
21−24
24−27
medium / 1080p
10−12
10−12
The average gaming FPS of Radeon RX 640 in Battlefield 5 is 7% more, than Radeon HD 7850M.
low / 768p
45−50
45−50
high / 1080p
45−50
40−45
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7850M in Call of Duty: Warzone is 4% more, than Radeon RX 640.
low / 768p
120−130
130−140
medium / 768p
100−110
100−110
ultra / 1080p
50−55
50−55
QHD / 1440p
27−30
27−30
4K / 2160p
−
12−14
high / 768p
75−80
80−85
The average gaming FPS of Radeon RX 640 in Counter-Strike: Global Offensive is 3% more, than Radeon HD 7850M.
low / 768p
55−60
50−55
ultra / 1080p
16−18
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 7850M in Cyberpunk 2077 is 2% more, than Radeon RX 640.
low / 768p
80−85
80−85
medium / 768p
55−60
55−60
ultra / 1080p
30−35
30−35
Radeon HD 7850M and Radeon RX 640 have the same average FPS in Dota 2.
high / 1080p
7−8
7−8
ultra / 1080p
7−8
5−6
4K / 2160p
3−4
5−6
low / 720p
16−18
18−20
medium / 1080p
8−9
8−9
The average gaming FPS of Radeon RX 640 in Far Cry 5 is 12% more, than Radeon HD 7850M.
high / 1080p
14−16
7−8
ultra / 1080p
10−11
0−1
QHD / 1440p
−
0−1
low / 720p
55−60
60−65
medium / 1080p
20−22
18−20
The average gaming FPS of Radeon HD 7850M in Fortnite is 6% more, than Radeon RX 640.
high / 1080p
10−11
10−11
4K / 2160p
8−9
8−9
low / 720p
24−27
24−27
medium / 1080p
12−14
12−14
Radeon HD 7850M and Radeon RX 640 have the same average FPS in Forza Horizon 4.
low / 768p
50−55
50−55
medium / 768p
40−45
−
high / 1080p
10−12
10−12
ultra / 1080p
6−7
5−6
QHD / 1440p
0−1
−
medium / 720p
−
45−50
Radeon HD 7850M and Radeon RX 640 have the same average FPS in Grand Theft Auto V.
high / 1080p
4−5
3−4
ultra / 1080p
3−4
1−2
4K / 2160p
0−1
−
low / 720p
10−12
10−11
medium / 1080p
6−7
5−6
The average gaming FPS of Radeon HD 7850M in Metro Exodus is 20% more, than Radeon RX 640.
low / 768p
90−95
90−95
high / 1080p
85−90
−
ultra / 1080p
75−80
80−85
medium / 1080p
90−95
−
The average gaming FPS of Radeon RX 640 in Minecraft is 2% more, than Radeon HD 7850M.
high / 1080p
16−18
6−7
ultra / 1080p
14−16
2−3
4K / 2160p
−
0−1
low / 720p
30−33
27−30
medium / 1080p
16−18
10−11
The average gaming FPS of Radeon HD 7850M in PLAYERUNKNOWN'S BATTLEGROUNDS is 66% more, than Radeon RX 640.
ultra / 1080p
7−8
−
QHD / 1440p
0−1
−
low / 720p
10−12
10−12
medium / 1080p
10−11
9−10
Radeon HD 7850M and Radeon RX 640 have the same average FPS in Red Dead Redemption 2.
low / 768p
21−24
21−24
medium / 768p
14−16
14−16
high / 1080p
8−9
6−7
ultra / 1080p
6−7
4−5
4K / 2160p
−
3−4
The average gaming FPS of Radeon HD 7850M in The Witcher 3: Wild Hunt is 8% more, than Radeon RX 640.
low / 768p
85−90
75−80
medium / 768p
40−45
40−45
ultra / 1080p
18−20
18−20
high / 768p
35−40
35−40
The average gaming FPS of Radeon HD 7850M in World of Tanks is 4% more, than Radeon RX 640.
Full Specs
Radeon HD 7850M
Radeon RX 640
Architecture
GCN
Polaris
Code name
Heathrow Pro
Polaris 12
Type
Laptop
Laptop
Release date
24 April 2012
12 August 2019
Pipelines
640
640
Core clock speed
675 MHz
1218 MHz
Boost Clock
1218 MHz
Transistor count
1,500 million
2,200 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
27.00
38.98
Floating-point performance
864.0 gflops
Memory bus width
128 Bit
64 Bit
Memory clock speed
4000 MHz
6000 MHz
Memory bandwidth
64 GB/s
112.0 GB/s
Shared memory
-
-
DirectX
12 (11_1)
12 (12_0)
Shader Model
5.1
6.4
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2.131
1.2.131
FreeSync
+
Laptop size
large
large
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