Iris Pro Graphics P580 vs Mobility Radeon HD 3870 X2
In this comparison between Iris Pro Graphics P580 and Mobility Radeon HD 3870 X2 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 Iris Pro Graphics P580 will be the best choice, for others Mobility Radeon HD 3870 X2 will be their preference. Study the comparison tables below and make your choice.
Iris Pro Graphics P580 and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards
Note: Iris Pro Graphics P580 and Mobility Radeon HD 3870 X2 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 Iris Pro Graphics P580 or Mobility Radeon HD 3870 X2 here:
Main Specs
Iris Pro Graphics P580
Mobility Radeon HD 3870 X2
Power consumption (TDP)
15 Watt
110 Watt
Interface
PCIe 3.0 x1
PCIe 2.0 x16
Memory type
DDR3L/LPDDR3/DDR4
GDDR3
Maximum RAM amount
64 GB
512 MB
Display Connectors
No outputs
No outputs
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Mobility Radeon HD 3870 X2 has 633% more power consumption, than Iris Pro Graphics P580.
Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Mobility Radeon HD 3870 X2 uses PCIe 2.0 x16 interface.
Mobility Radeon HD 3870 X2 has 448 GB more memory, than Iris Pro Graphics P580.
Both cards are used in Laptops.
Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
Core clock speed of Mobility Radeon HD 3870 X2 is 310 MHz higher, than Iris Pro Graphics P580.
Iris Pro Graphics P580 is manufactured by 14 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
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
10−11
6−7
ultra / 1080p
6−7
4−5
QHD / 1440p
0−1
0−1
low / 720p
21−24
16−18
medium / 1080p
12−14
8−9
The average gaming FPS of Iris Pro Graphics P580 in Assassin's Creed Odyssey is 44% more, than Mobility Radeon HD 3870 X2.
high / 1080p
16−18
12−14
ultra / 1080p
14−16
10−11
QHD / 1440p
0−1
0−1
low / 720p
35−40
24−27
medium / 1080p
18−20
12−14
The average gaming FPS of Iris Pro Graphics P580 in Battlefield 5 is 46% more, than Mobility Radeon HD 3870 X2.
low / 768p
45−50
45−50
high / 1080p
−
45−50
QHD / 1440p
0−1
0−1
Iris Pro Graphics P580 and Mobility Radeon HD 3870 X2 have the same average FPS in Call of Duty: Warzone.
low / 768p
170−180
130−140
medium / 768p
140−150
110−120
ultra / 1080p
70−75
50−55
QHD / 1440p
40−45
27−30
4K / 2160p
30−33
27−30
high / 768p
100−110
80−85
The average gaming FPS of Iris Pro Graphics P580 in Counter-Strike: Global Offensive is 30% more, than Mobility Radeon HD 3870 X2.
low / 768p
55−60
55−60
ultra / 1080p
27−30
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of Iris Pro Graphics P580 in Cyberpunk 2077 is 7% more, than Mobility Radeon HD 3870 X2.
low / 768p
90−95
80−85
medium / 768p
75−80
55−60
ultra / 1080p
45−50
30−35
The average gaming FPS of Iris Pro Graphics P580 in Dota 2 is 26% more, than Mobility Radeon HD 3870 X2.
high / 1080p
10−12
8−9
ultra / 1080p
10−12
7−8
4K / 2160p
4−5
3−4
low / 720p
27−30
18−20
medium / 1080p
12−14
8−9
The average gaming FPS of Iris Pro Graphics P580 in Far Cry 5 is 44% more, than Mobility Radeon HD 3870 X2.
high / 1080p
18−20
14−16
ultra / 1080p
12−14
10−11
low / 720p
75−80
60−65
medium / 1080p
35−40
21−24
The average gaming FPS of Iris Pro Graphics P580 in Fortnite is 33% more, than Mobility Radeon HD 3870 X2.
high / 1080p
16−18
12−14
ultra / 1080p
14−16
10−12
QHD / 1440p
4−5
1−2
low / 720p
35−40
24−27
medium / 1080p
18−20
14−16
The average gaming FPS of Iris Pro Graphics P580 in Forza Horizon 4 is 38% more, than Mobility Radeon HD 3870 X2.
low / 768p
65−70
50−55
medium / 768p
55−60
45−50
high / 1080p
18−20
12−14
ultra / 1080p
8−9
6−7
QHD / 1440p
0−1
0−1
The average gaming FPS of Iris Pro Graphics P580 in Grand Theft Auto V is 31% more, than Mobility Radeon HD 3870 X2.
high / 1080p
6−7
4−5
ultra / 1080p
5−6
3−4
4K / 2160p
1−2
0−1
low / 720p
18−20
12−14
medium / 1080p
9−10
6−7
The average gaming FPS of Iris Pro Graphics P580 in Metro Exodus is 66% more, than Mobility Radeon HD 3870 X2.
low / 768p
100−110
95−100
high / 1080p
−
85−90
ultra / 1080p
90−95
80−85
medium / 1080p
95−100
90−95
The average gaming FPS of Iris Pro Graphics P580 in Minecraft is 8% more, than Mobility Radeon HD 3870 X2.
high / 1080p
18−20
16−18
ultra / 1080p
14−16
14−16
low / 720p
40−45
30−35
medium / 1080p
20−22
18−20
The average gaming FPS of Iris Pro Graphics P580 in PLAYERUNKNOWN'S BATTLEGROUNDS is 20% more, than Mobility Radeon HD 3870 X2.
high / 1080p
12−14
−
ultra / 1080p
8−9
7−8
QHD / 1440p
0−1
0−1
low / 720p
18−20
12−14
medium / 1080p
12−14
10−12
The average gaming FPS of Iris Pro Graphics P580 in Red Dead Redemption 2 is 30% more, than Mobility Radeon HD 3870 X2.
low / 768p
35−40
24−27
medium / 768p
21−24
16−18
high / 1080p
12−14
9−10
ultra / 1080p
8−9
6−7
4K / 2160p
7−8
6−7
The average gaming FPS of Iris Pro Graphics P580 in The Witcher 3: Wild Hunt is 30% more, than Mobility Radeon HD 3870 X2.
low / 768p
90−95
85−90
medium / 768p
50−55
45−50
ultra / 1080p
24−27
18−20
high / 768p
40−45
35−40
The average gaming FPS of Iris Pro Graphics P580 in World of Tanks is 12% more, than Mobility Radeon HD 3870 X2.
Full Specs
Iris Pro Graphics P580
Mobility Radeon HD 3870 X2
Architecture
Gen. 9 Skylake
RV6xx
Code name
Skylake GT4e
M88-XT CF
Type
Laptop
Laptop
Release date
1 September 2015
1 September 2008
Pipelines
72
640
Core clock speed
350 MHz
660 MHz
Boost Clock
1100 MHz
Transistor count
189 million
666 million
Manufacturing process technology
14 nm
55 nm
Texture fill rate
75.60
10.56
Floating-point performance
2x 422.4 gflops
Memory bus width
256 Bit
Memory clock speed
850 MHz
Memory bandwidth
54.4 GB/s
Shared memory
+
-
DirectX
12 (12_1)
10.1 (10_1)
Shader Model
6.4
4.1
OpenGL
4.6
3.3
OpenCL
2.1
N/A
Vulkan
1.1.97
N/A
Laptop size
large
Quick Sync
+
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