Mobility Radeon HD 4870 vs Radeon HD 7970M
In this comparison between Mobility Radeon HD 4870 and Radeon HD 7970M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Mobility Radeon HD 4870 will be the best choice, for others Radeon HD 7970M will be their preference. Study the comparison tables below and make your choice.
Mobility Radeon HD 4870 and Radeon HD 7970M are Laptop Graphics Cards
Note: Mobility Radeon HD 4870 and Radeon HD 7970M 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 7970M here:
Main Specs
Mobility Radeon HD 4870
Radeon HD 7970M
Power consumption (TDP)
100 Watt
Interface
PCIe 2.0 x16
MXM-B (3.0)
Supplementary power connectors
None
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 7970M uses MXM-B (3.0) interface.
Radeon HD 7970M 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 7970M - with GCN.
Core clock speed of Radeon HD 7970M is 300 MHz higher, than Mobility Radeon HD 4870.
Mobility Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon HD 7970M - by 28 nm process technology.
Memory clock speed of Radeon HD 7970M is 3912 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
18−20
ultra / 1080p
4−5
10−12
QHD / 1440p
0−1
5−6
4K / 2160p
−
4−5
low / 720p
16−18
35−40
medium / 1080p
8−9
21−24
The average gaming FPS of Radeon HD 7970M in Assassin's Creed Odyssey is 144% more, than Mobility Radeon HD 4870.
high / 1080p
12−14
27−30
ultra / 1080p
10−11
24−27
QHD / 1440p
0−1
9−10
4K / 2160p
−
6−7
low / 720p
24−27
60−65
medium / 1080p
12−14
30−35
The average gaming FPS of Radeon HD 7970M in Battlefield 5 is 146% more, than Mobility Radeon HD 4870.
low / 768p
45−50
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7970M in Call of Duty: Warzone is 10% more, than Mobility Radeon HD 4870.
low / 768p
140−150
220−230
medium / 768p
110−120
190−200
ultra / 1080p
55−60
110−120
QHD / 1440p
30−33
75−80
4K / 2160p
27−30
40−45
high / 768p
80−85
160−170
The average gaming FPS of Radeon HD 7970M in Counter-Strike: Global Offensive is 78% more, than Mobility Radeon HD 4870.
low / 768p
55−60
60−65
ultra / 1080p
20−22
45−50
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon HD 7970M in Cyberpunk 2077 is 30% more, than Mobility Radeon HD 4870.
low / 768p
80−85
110−120
medium / 768p
60−65
100−110
ultra / 1080p
35−40
75−80
The average gaming FPS of Radeon HD 7970M in Dota 2 is 65% more, than Mobility Radeon HD 4870.
high / 1080p
8−9
21−24
ultra / 1080p
8−9
20−22
QHD / 1440p
−
18−20
4K / 2160p
3−4
7−8
low / 720p
18−20
45−50
medium / 1080p
9−10
24−27
The average gaming FPS of Radeon HD 7970M in Far Cry 5 is 166% more, than Mobility Radeon HD 4870.
high / 1080p
14−16
30−33
ultra / 1080p
10−11
21−24
QHD / 1440p
−
14−16
low / 720p
60−65
110−120
medium / 1080p
24−27
65−70
The average gaming FPS of Radeon HD 7970M in Fortnite is 110% more, than Mobility Radeon HD 4870.
high / 1080p
12−14
30−35
ultra / 1080p
10−12
24−27
QHD / 1440p
1−2
12−14
4K / 2160p
−
12−14
low / 720p
27−30
60−65
medium / 1080p
14−16
35−40
The average gaming FPS of Radeon HD 7970M in Forza Horizon 4 is 161% more, than Mobility Radeon HD 4870.
low / 768p
50−55
95−100
medium / 768p
45−50
85−90
high / 1080p
12−14
35−40
ultra / 1080p
6−7
14−16
QHD / 1440p
0−1
5−6
The average gaming FPS of Radeon HD 7970M in Grand Theft Auto V is 103% more, than Mobility Radeon HD 4870.
high / 1080p
5−6
12−14
ultra / 1080p
3−4
9−10
4K / 2160p
0−1
2−3
low / 720p
12−14
35−40
medium / 1080p
6−7
16−18
The average gaming FPS of Radeon HD 7970M in Metro Exodus is 171% more, than Mobility Radeon HD 4870.
low / 768p
95−100
110−120
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
90−95
110−120
The average gaming FPS of Radeon HD 7970M in Minecraft is 21% more, than Mobility Radeon HD 4870.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
30−35
65−70
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon HD 7970M in PLAYERUNKNOWN'S BATTLEGROUNDS is 50% more, than Mobility Radeon HD 4870.
high / 1080p
−
14−16
ultra / 1080p
7−8
9−10
QHD / 1440p
0−1
0−1
low / 720p
12−14
35−40
medium / 1080p
10−12
18−20
The average gaming FPS of Radeon HD 7970M in Red Dead Redemption 2 is 120% more, than Mobility Radeon HD 4870.
low / 768p
24−27
65−70
medium / 768p
16−18
40−45
high / 1080p
9−10
21−24
ultra / 1080p
6−7
12−14
4K / 2160p
6−7
7−8
The average gaming FPS of Radeon HD 7970M in The Witcher 3: Wild Hunt is 130% more, than Mobility Radeon HD 4870.
low / 768p
85−90
90−95
medium / 768p
45−50
60−65
ultra / 1080p
20−22
40−45
high / 768p
35−40
55−60
The average gaming FPS of Radeon HD 7970M in World of Tanks is 31% more, than Mobility Radeon HD 4870.
Full Specs
Mobility Radeon HD 4870
Radeon HD 7970M
Architecture
Terascale 1
GCN
Code name
M98-XT
Wimbledon XT
Type
Laptop
Laptop
Release date
9 January 2009
1 May 2012
Pipelines
800
1280
Core clock speed
550 MHz
850 MHz
Transistor count
956 million
2,800 million
Manufacturing process technology
55 nm
28 nm
Texture fill rate
22.00
68.00
Floating-point performance
880.0 gflops
2,176 gflops
Memory bus width
256 Bit
256 Bit
Memory clock speed
888 MHz
4800 MHz
Memory bandwidth
56.83 GB/s
153.6 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
Bitcoin / BTC (SHA256)
254 Mh/s
Laptop size
large
large
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