Mobility Radeon HD 3870 X2 vs Radeon HD 4890
When comparing Mobility Radeon HD 3870 X2 and Radeon HD 4890, 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 Mobility Radeon HD 3870 X2 and Radeon HD 4890 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Mobility Radeon HD 3870 X2 is a Laptop Graphics Card
Note: Mobility Radeon HD 3870 X2 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 Mobility Radeon HD 3870 X2 here:
Main Specs
Mobility Radeon HD 3870 X2
Radeon HD 4890
Power consumption (TDP)
110 Watt
190 Watt
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
Memory type
GDDR3
GDDR5
Maximum RAM amount
512 MB
1 GB
Display Connectors
No outputs
2x DVI, 1x S-Video
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Radeon HD 4890 has 72% more power consumption, than Mobility Radeon HD 3870 X2.
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 Radeon HD 4890.
Mobility Radeon HD 3870 X2 is used in Laptops, and Radeon HD 4890 - in Desktops.
Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon HD 4890 - with TeraScale.
Core clock speed of Radeon HD 4890 is 190 MHz higher, than Mobility Radeon HD 3870 X2.
Mobility Radeon HD 3870 X2 and Radeon HD 4890 are manufactured by 55 nm process technology.
Memory clock speed of Radeon HD 4890 is 3050 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 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 Radeon HD 4890 in World of Tanks is 2% more, than Mobility Radeon HD 3870 X2.
Full Specs
Mobility Radeon HD 3870 X2
Radeon HD 4890
Architecture
RV6xx
TeraScale
Code name
M88-XT CF
RV790
Type
Laptop
Desktop
Release date
1 September 2008
2 April 2009
Pipelines
640
800
Core clock speed
660 MHz
850 MHz
Transistor count
666 million
959 million
Manufacturing process technology
55 nm
55 nm
Texture fill rate
10.56
34.00
Floating-point performance
2x 422.4 gflops
1,360.0 gflops
Length
241 mm
Memory bus width
256 Bit
256 Bit
Memory clock speed
850 MHz
3900 MHz
Memory bandwidth
54.4 GB/s
124.8 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
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