Mobility Radeon HD 3870 X2 vs Mobility Radeon HD 4870
In this comparison between Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 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 3870 X2 will be the best choice, for others Mobility Radeon HD 4870 will be their preference. Study the comparison tables below and make your choice.
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 are Laptop Graphics Cards
Note: Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 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 3870 X2 or Mobility Radeon HD 4870 here:
Main Specs
Mobility Radeon HD 3870 X2
Mobility Radeon HD 4870
Power consumption (TDP)
110 Watt
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Memory type
GDDR3
GDDR5
Maximum RAM amount
512 MB
1 GB
Display Connectors
No outputs
No outputs
Check Price
Check Price
Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
Mobility Radeon HD 3870 X2 has 511 GB more memory, than Mobility Radeon HD 4870.
Both cards are used in Laptops.
Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Mobility Radeon HD 4870 - with Terascale 1.
Core clock speed of Mobility Radeon HD 3870 X2 is 110 MHz higher, than Mobility Radeon HD 4870.
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 are manufactured by 55 nm process technology.
Memory clock speed of Mobility Radeon HD 4870 is 38 MHz higher, than Mobility Radeon HD 3870 X2.
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
7−8
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
16−18
16−18
medium / 1080p
8−9
8−9
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
12−14
12−14
ultra / 1080p
10−11
10−11
QHD / 1440p
0−1
0−1
low / 720p
24−27
24−27
medium / 1080p
12−14
12−14
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 have the same average FPS in Battlefield 5.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 have the same average FPS in Call of Duty: Warzone.
low / 768p
130−140
140−150
medium / 768p
110−120
110−120
ultra / 1080p
50−55
55−60
QHD / 1440p
27−30
30−33
4K / 2160p
27−30
27−30
high / 768p
80−85
80−85
The average gaming FPS of Mobility Radeon HD 4870 in Counter-Strike: Global Offensive is 4% more, than Mobility Radeon HD 3870 X2.
low / 768p
55−60
55−60
ultra / 1080p
18−20
20−22
medium / 1080p
45−50
45−50
The average gaming FPS of Mobility Radeon HD 4870 in Cyberpunk 2077 is 2% more, than Mobility Radeon HD 3870 X2.
low / 768p
80−85
80−85
medium / 768p
55−60
60−65
ultra / 1080p
30−35
35−40
The average gaming FPS of Mobility Radeon HD 4870 in Dota 2 is 5% more, than Mobility Radeon HD 3870 X2.
high / 1080p
8−9
8−9
ultra / 1080p
7−8
8−9
4K / 2160p
3−4
3−4
low / 720p
18−20
18−20
medium / 1080p
8−9
9−10
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 have the same average FPS in Far Cry 5.
high / 1080p
14−16
14−16
ultra / 1080p
10−11
10−11
low / 720p
60−65
60−65
medium / 1080p
21−24
24−27
The average gaming FPS of Mobility Radeon HD 4870 in Fortnite is 3% more, than Mobility Radeon HD 3870 X2.
high / 1080p
12−14
12−14
ultra / 1080p
10−12
10−12
QHD / 1440p
1−2
1−2
low / 720p
24−27
27−30
medium / 1080p
14−16
14−16
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 have the same average FPS in Forza Horizon 4.
low / 768p
50−55
50−55
medium / 768p
45−50
45−50
high / 1080p
12−14
12−14
ultra / 1080p
6−7
6−7
QHD / 1440p
0−1
0−1
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 have the same average FPS in Grand Theft Auto V.
high / 1080p
4−5
5−6
ultra / 1080p
3−4
3−4
4K / 2160p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
6−7
6−7
The average gaming FPS of Mobility Radeon HD 4870 in Metro Exodus is 16% more, than Mobility Radeon HD 3870 X2.
low / 768p
95−100
95−100
high / 1080p
85−90
90−95
ultra / 1080p
80−85
80−85
medium / 1080p
90−95
90−95
The average gaming FPS of Mobility Radeon HD 4870 in Minecraft is 1% more, than Mobility Radeon HD 3870 X2.
high / 1080p
16−18
16−18
ultra / 1080p
14−16
14−16
low / 720p
30−35
30−35
medium / 1080p
18−20
18−20
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 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
12−14
medium / 1080p
10−12
10−12
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 have the same average FPS in Red Dead Redemption 2.
low / 768p
24−27
24−27
medium / 768p
16−18
16−18
high / 1080p
9−10
9−10
ultra / 1080p
6−7
6−7
4K / 2160p
6−7
6−7
Mobility Radeon HD 3870 X2 and Mobility Radeon HD 4870 have the same average FPS in The Witcher 3: Wild Hunt.
low / 768p
85−90
85−90
medium / 768p
45−50
45−50
ultra / 1080p
18−20
20−22
high / 768p
35−40
35−40
The average gaming FPS of Mobility Radeon HD 4870 in World of Tanks is 2% more, than Mobility Radeon HD 3870 X2.
Full Specs
Mobility Radeon HD 3870 X2
Mobility Radeon HD 4870
Architecture
RV6xx
Terascale 1
Code name
M88-XT CF
M98-XT
Type
Laptop
Laptop
Release date
1 September 2008
9 January 2009
Pipelines
640
800
Core clock speed
660 MHz
550 MHz
Transistor count
666 million
956 million
Manufacturing process technology
55 nm
55 nm
Texture fill rate
10.56
22.00
Floating-point performance
2x 422.4 gflops
880.0 gflops
Memory bus width
256 Bit
256 Bit
Memory clock speed
850 MHz
888 MHz
Memory bandwidth
54.4 GB/s
56.83 GB/s
Shared memory
-
-
DirectX
10.1 (10_1)
10.1 (10_1)
Shader Model
4.1
4.1
OpenGL
3.3
3.3
OpenCL
N/A
1.1
Vulkan
N/A
N/A
Laptop size
large
large
Check Price
Check Price
