Mobility Radeon HD 4870 vs Radeon HD 7850M
If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4870 and Radeon HD 7850M, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Mobility Radeon HD 4870 stacks up against Radeon HD 7850M, check out specs charts below.
Mobility Radeon HD 4870 and Radeon HD 7850M are Laptop Graphics Cards
Note: Mobility Radeon HD 4870 and Radeon HD 7850M 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 Mobility Radeon HD 4870 or Radeon HD 7850M here:
Main Specs
Mobility Radeon HD 4870
Radeon HD 7850M
Power consumption (TDP)
40 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Display Connectors
No outputs
No outputs
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Mobility Radeon HD 4870 is connected by PCIe 2.0 x16, and Radeon HD 7850M uses PCIe 3.0 x16 interface.
Radeon HD 7850M has 1 GB more memory, than Mobility Radeon HD 4870.
Both cards are used in Laptops.
Mobility Radeon HD 4870 is build with Terascale 1 architecture, and Radeon HD 7850M - with GCN.
Core clock speed of Radeon HD 7850M is 125 MHz higher, than Mobility Radeon HD 4870.
Mobility Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon HD 7850M - by 28 nm process technology.
Memory clock speed of Radeon HD 7850M is 3112 MHz higher, than Mobility Radeon HD 4870.
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
7−8
6−7
ultra / 1080p
4−5
3−4
QHD / 1440p
0−1
0−1
low / 720p
16−18
14−16
medium / 1080p
8−9
7−8
The average gaming FPS of Mobility Radeon HD 4870 in Assassin's Creed Odyssey is 12% more, than Radeon HD 7850M.
high / 1080p
12−14
10−12
ultra / 1080p
10−11
9−10
QHD / 1440p
0−1
0−1
low / 720p
24−27
21−24
medium / 1080p
12−14
10−12
The average gaming FPS of Mobility Radeon HD 4870 in Battlefield 5 is 15% more, than Radeon HD 7850M.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
Mobility Radeon HD 4870 and Radeon HD 7850M have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
120−130
medium / 768p
110−120
100−110
ultra / 1080p
55−60
50−55
QHD / 1440p
30−33
27−30
4K / 2160p
27−30
−
high / 768p
80−85
75−80
The average gaming FPS of Mobility Radeon HD 4870 in Counter-Strike: Global Offensive is 11% more, than Radeon HD 7850M.
low / 768p
55−60
55−60
ultra / 1080p
20−22
16−18
medium / 1080p
45−50
45−50
The average gaming FPS of Mobility Radeon HD 4870 in Cyberpunk 2077 is 5% more, than Radeon HD 7850M.
low / 768p
80−85
80−85
medium / 768p
60−65
55−60
ultra / 1080p
35−40
30−35
The average gaming FPS of Mobility Radeon HD 4870 in Dota 2 is 5% more, than Radeon HD 7850M.
high / 1080p
8−9
7−8
ultra / 1080p
8−9
7−8
4K / 2160p
3−4
3−4
low / 720p
18−20
16−18
medium / 1080p
9−10
8−9
The average gaming FPS of Mobility Radeon HD 4870 in Far Cry 5 is 12% more, than Radeon HD 7850M.
high / 1080p
14−16
14−16
ultra / 1080p
10−11
10−11
low / 720p
60−65
55−60
medium / 1080p
24−27
20−22
The average gaming FPS of Mobility Radeon HD 4870 in Fortnite is 7% more, than Radeon HD 7850M.
high / 1080p
12−14
10−11
ultra / 1080p
10−12
−
QHD / 1440p
1−2
−
4K / 2160p
−
8−9
low / 720p
27−30
24−27
medium / 1080p
14−16
12−14
The average gaming FPS of Mobility Radeon HD 4870 in Forza Horizon 4 is 12% more, than Radeon HD 7850M.
low / 768p
50−55
50−55
medium / 768p
45−50
40−45
high / 1080p
12−14
10−12
ultra / 1080p
6−7
6−7
QHD / 1440p
0−1
0−1
The average gaming FPS of Mobility Radeon HD 4870 in Grand Theft Auto V is 3% more, than Radeon HD 7850M.
high / 1080p
5−6
4−5
ultra / 1080p
3−4
3−4
4K / 2160p
0−1
0−1
low / 720p
12−14
10−12
medium / 1080p
6−7
6−7
The average gaming FPS of Mobility Radeon HD 4870 in Metro Exodus is 16% more, than Radeon HD 7850M.
low / 768p
95−100
90−95
high / 1080p
90−95
85−90
ultra / 1080p
80−85
75−80
medium / 1080p
90−95
90−95
The average gaming FPS of Mobility Radeon HD 4870 in Minecraft is 4% more, than Radeon HD 7850M.
high / 1080p
16−18
16−18
ultra / 1080p
14−16
14−16
low / 720p
30−35
30−33
medium / 1080p
18−20
16−18
Mobility Radeon HD 4870 and Radeon HD 7850M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
ultra / 1080p
7−8
7−8
QHD / 1440p
0−1
0−1
low / 720p
12−14
10−12
medium / 1080p
10−12
10−11
The average gaming FPS of Mobility Radeon HD 4870 in Red Dead Redemption 2 is 11% more, than Radeon HD 7850M.
low / 768p
24−27
21−24
medium / 768p
16−18
14−16
high / 1080p
9−10
8−9
ultra / 1080p
6−7
6−7
4K / 2160p
6−7
−
The average gaming FPS of Mobility Radeon HD 4870 in The Witcher 3: Wild Hunt is 7% more, than Radeon HD 7850M.
low / 768p
85−90
85−90
medium / 768p
45−50
40−45
ultra / 1080p
20−22
18−20
high / 768p
35−40
35−40
The average gaming FPS of Mobility Radeon HD 4870 in World of Tanks is 4% more, than Radeon HD 7850M.
Full Specs
Mobility Radeon HD 4870
Radeon HD 7850M
Architecture
Terascale 1
GCN
Code name
M98-XT
Heathrow Pro
Type
Laptop
Laptop
Release date
9 January 2009
24 April 2012
Pipelines
800
640
Core clock speed
550 MHz
675 MHz
Transistor count
956 million
1,500 million
Manufacturing process technology
55 nm
28 nm
Texture fill rate
22.00
27.00
Floating-point performance
880.0 gflops
864.0 gflops
Memory bus width
256 Bit
128 Bit
Memory clock speed
888 MHz
4000 MHz
Memory bandwidth
56.83 GB/s
64 GB/s
Shared memory
-
-
DirectX
10.1 (10_1)
12 (11_1)
Shader Model
4.1
5.1
OpenGL
3.3
4.6
OpenCL
1.1
1.2
Vulkan
N/A
1.2.131
Laptop size
large
large
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