Iris Plus Graphics 640 vs Radeon R9 M385X
If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 640 and Radeon R9 M385X, 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 Iris Plus Graphics 640 stacks up against Radeon R9 M385X, check out specs charts below.
Iris Plus Graphics 640 and Radeon R9 M385X are Laptop Graphics Cards
Note: Iris Plus Graphics 640 and Radeon R9 M385X 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 Plus Graphics 640 or Radeon R9 M385X here:
Main Specs
Iris Plus Graphics 640
Radeon R9 M385X
Power consumption (TDP)
15 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Memory type
DDR3L/LPDDR3/DDR4
GDDR5
Maximum RAM amount
32 GB
4 GB
Display Connectors
No outputs
No outputs
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Iris Plus Graphics 640 is connected by PCIe 3.0 x1, and Radeon R9 M385X uses PCIe 3.0 x16 interface.
Iris Plus Graphics 640 has 28 GB more memory, than Radeon R9 M385X.
Both cards are used in Laptops.
Iris Plus Graphics 640 is build with Gen. 9.5 Kaby Lake architecture, and Radeon R9 M385X - with GCN.
Core clock speed of Radeon R9 M385X is 800 MHz higher, than Iris Plus Graphics 640.
Iris Plus Graphics 640 is manufactured by 14 nm process technology, and Radeon R9 M385X - by 28 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
6−7
8−9
ultra / 1080p
4−5
5−6
QHD / 1440p
0−1
0−1
low / 720p
16−18
18−20
medium / 1080p
8−9
10−11
The average gaming FPS of Radeon R9 M385X in Assassin's Creed Odyssey is 11% more, than Iris Plus Graphics 640.
high / 1080p
12−14
14−16
ultra / 1080p
10−11
12−14
QHD / 1440p
0−1
0−1
low / 720p
24−27
30−33
medium / 1080p
12−14
14−16
The average gaming FPS of Radeon R9 M385X in Battlefield 5 is 20% more, than Iris Plus Graphics 640.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
Iris Plus Graphics 640 and Radeon R9 M385X have the same average FPS in Call of Duty: Warzone.
low / 768p
130−140
150−160
medium / 768p
110−120
120−130
ultra / 1080p
50−55
60−65
QHD / 1440p
27−30
35−40
4K / 2160p
27−30
27−30
high / 768p
80−85
90−95
The average gaming FPS of Radeon R9 M385X in Counter-Strike: Global Offensive is 13% more, than Iris Plus Graphics 640.
low / 768p
55−60
55−60
ultra / 1080p
18−20
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon R9 M385X in Cyberpunk 2077 is 2% more, than Iris Plus Graphics 640.
low / 768p
80−85
85−90
medium / 768p
55−60
65−70
ultra / 1080p
30−35
40−45
The average gaming FPS of Radeon R9 M385X in Dota 2 is 14% more, than Iris Plus Graphics 640.
high / 1080p
8−9
10−11
ultra / 1080p
7−8
9−10
4K / 2160p
3−4
4−5
low / 720p
18−20
21−24
medium / 1080p
8−9
10−11
The average gaming FPS of Radeon R9 M385X in Far Cry 5 is 22% more, than Iris Plus Graphics 640.
high / 1080p
14−16
16−18
ultra / 1080p
10−11
12−14
low / 720p
60−65
65−70
medium / 1080p
21−24
27−30
The average gaming FPS of Radeon R9 M385X in Fortnite is 14% more, than Iris Plus Graphics 640.
high / 1080p
12−14
14−16
ultra / 1080p
10−12
12−14
QHD / 1440p
1−2
2−3
low / 720p
24−27
30−35
medium / 1080p
14−16
16−18
The average gaming FPS of Radeon R9 M385X in Forza Horizon 4 is 23% more, than Iris Plus Graphics 640.
low / 768p
50−55
60−65
medium / 768p
45−50
50−55
high / 1080p
12−14
16−18
ultra / 1080p
6−7
7−8
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon R9 M385X in Grand Theft Auto V is 17% more, than Iris Plus Graphics 640.
high / 1080p
4−5
5−6
ultra / 1080p
3−4
4−5
4K / 2160p
0−1
1−2
low / 720p
12−14
16−18
medium / 1080p
6−7
7−8
The average gaming FPS of Radeon R9 M385X in Metro Exodus is 33% more, than Iris Plus Graphics 640.
low / 768p
95−100
95−100
high / 1080p
90−95
95−100
ultra / 1080p
80−85
85−90
medium / 1080p
90−95
95−100
The average gaming FPS of Radeon R9 M385X in Minecraft is 4% more, than Iris Plus Graphics 640.
high / 1080p
16−18
18−20
ultra / 1080p
14−16
14−16
low / 720p
30−35
35−40
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon R9 M385X in PLAYERUNKNOWN'S BATTLEGROUNDS is 10% more, than Iris Plus Graphics 640.
ultra / 1080p
7−8
8−9
QHD / 1440p
0−1
0−1
low / 720p
12−14
14−16
medium / 1080p
10−12
12−14
The average gaming FPS of Radeon R9 M385X in Red Dead Redemption 2 is 20% more, than Iris Plus Graphics 640.
low / 768p
24−27
30−35
medium / 768p
16−18
20−22
high / 1080p
9−10
10−12
ultra / 1080p
6−7
7−8
4K / 2160p
6−7
6−7
The average gaming FPS of Radeon R9 M385X in The Witcher 3: Wild Hunt is 15% more, than Iris Plus Graphics 640.
low / 768p
85−90
90−95
medium / 768p
45−50
45−50
ultra / 1080p
18−20
21−24
high / 768p
35−40
40−45
The average gaming FPS of Radeon R9 M385X in World of Tanks is 8% more, than Iris Plus Graphics 640.
Full Specs
Iris Plus Graphics 640
Radeon R9 M385X
Architecture
Gen. 9.5 Kaby Lake
GCN
Code name
Kaby Lake GT3e
Strato-XT-M3
Type
Laptop
Laptop
Release date
3 January 2017
16 June 2015
Pipelines
48
896
Core clock speed
300 MHz
1100 MHz
Boost Clock
1050 MHz
1100 MHz
Transistor count
189 million
2,080 million
Manufacturing process technology
14 nm
28 nm
Texture fill rate
52.80
61.60
Floating-point performance
1,971 gflops
Memory bus width
64/128 Bit
128 Bit
Memory clock speed
1500 MHz
Memory bandwidth
76.8 GB/s
Shared memory
+
-
DirectX
12 (12_1)
Shader Model
6.4
6.3
OpenGL
4.6
4.4
OpenCL
2.1
Not Listed
Vulkan
1.1.103
FreeSync
+
Bus support
PCIe 3.0
Laptop size
large
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
Quick Sync
+
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