Iris Plus Graphics 645 vs Radeon R9 380X
If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 645 and Radeon R9 380X, 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 645 stacks up against Radeon R9 380X, check out specs charts below.
Iris Plus Graphics 645 is a Laptop Graphics Card
Note: Iris Plus Graphics 645 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 Iris Plus Graphics 645 here:
Main Specs
Iris Plus Graphics 645
Radeon R9 380X
Power consumption (TDP)
15 Watt
190 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Memory type
DDR3/DDR4
GDDR5
Maximum RAM amount
4 GB
Display Connectors
No outputs
2x DVI, 1x HDMI, 1x DisplayPort
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Radeon R9 380X has 1166% more power consumption, than Iris Plus Graphics 645.
Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon R9 380X uses PCIe 3.0 x16 interface.
Iris Plus Graphics 645 is used in Laptops, and Radeon R9 380X - in Desktops.
Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon R9 380X - with GCN 3.0.
Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon R9 380X - 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
4−5
35−40
ultra / 1080p
2−3
21−24
QHD / 1440p
0−1
16−18
4K / 2160p
−
10−11
low / 720p
12−14
60−65
medium / 1080p
5−6
40−45
The average gaming FPS of Radeon R9 380X in Assassin's Creed Odyssey is 583% more, than Iris Plus Graphics 645.
high / 1080p
−
55−60
ultra / 1080p
7−8
45−50
QHD / 1440p
0−1
35−40
4K / 2160p
−
18−20
low / 720p
16−18
100−110
medium / 1080p
8−9
60−65
The average gaming FPS of Radeon R9 380X in Battlefield 5 is 545% more, than Iris Plus Graphics 645.
low / 768p
45−50
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon R9 380X in Call of Duty: Warzone is 10% more, than Iris Plus Graphics 645.
low / 768p
100−110
250−260
medium / 768p
80−85
220−230
ultra / 1080p
35−40
180−190
QHD / 1440p
24−27
110−120
4K / 2160p
−
70−75
high / 768p
60−65
210−220
The average gaming FPS of Radeon R9 380X in Counter-Strike: Global Offensive is 220% more, than Iris Plus Graphics 645.
low / 768p
55−60
60−65
ultra / 1080p
12−14
−
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon R9 380X in Cyberpunk 2077 is 15% more, than Iris Plus Graphics 645.
low / 768p
65−70
120−130
medium / 768p
45−50
110−120
ultra / 1080p
21−24
100−110
The average gaming FPS of Radeon R9 380X in Dota 2 is 155% more, than Iris Plus Graphics 645.
high / 1080p
5−6
45−50
ultra / 1080p
5−6
40−45
QHD / 1440p
−
27−30
4K / 2160p
3−4
14−16
low / 720p
12−14
80−85
medium / 1080p
5−6
45−50
The average gaming FPS of Radeon R9 380X in Far Cry 5 is 683% more, than Iris Plus Graphics 645.
high / 1080p
12−14
60−65
ultra / 1080p
8−9
45−50
QHD / 1440p
−
27−30
4K / 2160p
−
27−30
low / 720p
45−50
180−190
medium / 1080p
12−14
110−120
The average gaming FPS of Radeon R9 380X in Fortnite is 410% more, than Iris Plus Graphics 645.
high / 1080p
8−9
60−65
ultra / 1080p
−
45−50
QHD / 1440p
0−1
30−35
4K / 2160p
−
24−27
low / 720p
16−18
100−110
medium / 1080p
9−10
65−70
The average gaming FPS of Radeon R9 380X in Forza Horizon 4 is 609% more, than Iris Plus Graphics 645.
low / 768p
40−45
140−150
medium / 768p
35−40
120−130
high / 1080p
7−8
70−75
ultra / 1080p
5−6
30−35
QHD / 1440p
0−1
21−24
The average gaming FPS of Radeon R9 380X in Grand Theft Auto V is 304% more, than Iris Plus Graphics 645.
high / 1080p
3−4
24−27
ultra / 1080p
2−3
20−22
QHD / 1440p
−
16−18
4K / 2160p
0−1
8−9
low / 720p
7−8
65−70
medium / 1080p
4−5
30−35
The average gaming FPS of Radeon R9 380X in Metro Exodus is 800% more, than Iris Plus Graphics 645.
low / 768p
85−90
130−140
high / 1080p
80−85
−
ultra / 1080p
70−75
−
medium / 1080p
−
120−130
The average gaming FPS of Radeon R9 380X in Minecraft is 55% more, than Iris Plus Graphics 645.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
24−27
100−110
medium / 1080p
16−18
18−20
The average gaming FPS of Radeon R9 380X in PLAYERUNKNOWN'S BATTLEGROUNDS is 142% more, than Iris Plus Graphics 645.
high / 1080p
−
24−27
ultra / 1080p
7−8
16−18
QHD / 1440p
0−1
10−11
4K / 2160p
−
7−8
low / 720p
7−8
65−70
medium / 1080p
−
35−40
The average gaming FPS of Radeon R9 380X in Red Dead Redemption 2 is 500% more, than Iris Plus Graphics 645.
low / 768p
16−18
130−140
medium / 768p
12−14
85−90
high / 1080p
6−7
45−50
ultra / 1080p
5−6
24−27
4K / 2160p
−
16−18
The average gaming FPS of Radeon R9 380X in The Witcher 3: Wild Hunt is 630% more, than Iris Plus Graphics 645.
low / 768p
80−85
90−95
medium / 768p
35−40
60−65
ultra / 1080p
14−16
50−55
high / 768p
30−33
60−65
The average gaming FPS of Radeon R9 380X in World of Tanks is 63% more, than Iris Plus Graphics 645.
Full Specs
Iris Plus Graphics 645
Radeon R9 380X
Architecture
Gen. 9.5 Coffee Lake
GCN 3.0
Code name
Kaby Lake GT3e
Antigua
Type
Laptop
Desktop
Release date
10 July 2019
19 November 2015
Pipelines
48
2048
Core clock speed
300 MHz
Boost Clock
1150 MHz
970 MHz
Transistor count
5,000 million
Manufacturing process technology
14 nm
28 nm
Texture fill rate
50.40
124.2
Floating-point performance
3,973 gflops
Length
221 mm
Memory bus width
256 Bit
Memory clock speed
970 MHz
Memory bandwidth
182.4 GB/s
Shared memory
+
DirectX
12 (12_1)
Shader Model
6.4
6.3
OpenGL
4.6
4.5
OpenCL
2.1
2.0
Vulkan
1.1.103
+
Monero / XMR (CryptoNight)
0.58 kh/s
FreeSync
+
Bus support
PCIe 3.0
HDMI
+
Eyefinity
+
HD3D
+
PowerTune
+
TrueAudio
+
ZeroCore
+
Mantle
+
Design
reference
Bridgeless CrossFire
+
Number of Eyefinity displays
6
DisplayPort support
+
CrossFire
+
VCE
+
DDMA audio
+
Decred / DCR (Decred)
0.89 Gh/s
Ethereum / ETH (DaggerHashimoto)
20.63 Mh/s
Zcash / ZEC (Equihash)
175 Sol/s
Quick Sync
+
Compute units
32
Form factor
full height / full length
High bandwidth memory (HBM)
-
LiquidVR
+
FRTC
+
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