Iris Plus Graphics 645 vs Radeon 540X
If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 645 and Radeon 540X, 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 540X, check out specs charts below.
Iris Plus Graphics 645 and Radeon 540X are Laptop Graphics Cards
Note: Iris Plus Graphics 645 and Radeon 540X 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 645 or Radeon 540X here:
Main Specs
Iris Plus Graphics 645
Radeon 540X
Power consumption (TDP)
15 Watt
50 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x8
Supplementary power connectors
None
Memory type
DDR3/DDR4
GDDR5
Maximum RAM amount
2 GB
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
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Radeon 540X has 233% more power consumption, than Iris Plus Graphics 645.
Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon 540X uses PCIe 3.0 x8 interface.
Both cards are used in Laptops.
Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon 540X - with GCN 4.0.
Iris Plus Graphics 645 and Radeon 540X are manufactured by 14 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
6−7
ultra / 1080p
2−3
3−4
QHD / 1440p
0−1
0−1
low / 720p
12−14
14−16
medium / 1080p
5−6
7−8
The average gaming FPS of Radeon 540X in Assassin's Creed Odyssey is 33% more, than Iris Plus Graphics 645.
high / 1080p
−
10−12
ultra / 1080p
7−8
9−10
QHD / 1440p
0−1
0−1
low / 720p
16−18
21−24
medium / 1080p
8−9
10−12
The average gaming FPS of Radeon 540X in Battlefield 5 is 27% more, than Iris Plus Graphics 645.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
Iris Plus Graphics 645 and Radeon 540X have the same average FPS in Call of Duty: Warzone.
low / 768p
100−110
120−130
medium / 768p
80−85
100−110
ultra / 1080p
35−40
50−55
QHD / 1440p
24−27
27−30
high / 768p
60−65
75−80
The average gaming FPS of Radeon 540X in Counter-Strike: Global Offensive is 24% more, than Iris Plus Graphics 645.
low / 768p
55−60
55−60
ultra / 1080p
12−14
16−18
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon 540X in Cyberpunk 2077 is 2% more, than Iris Plus Graphics 645.
low / 768p
65−70
75−80
medium / 768p
45−50
55−60
ultra / 1080p
21−24
30−35
The average gaming FPS of Radeon 540X in Dota 2 is 22% more, than Iris Plus Graphics 645.
high / 1080p
5−6
7−8
ultra / 1080p
5−6
7−8
4K / 2160p
3−4
3−4
low / 720p
12−14
16−18
medium / 1080p
5−6
8−9
The average gaming FPS of Radeon 540X in Far Cry 5 is 33% more, than Iris Plus Graphics 645.
high / 1080p
12−14
14−16
ultra / 1080p
8−9
10−11
low / 720p
45−50
55−60
medium / 1080p
12−14
20−22
The average gaming FPS of Radeon 540X in Fortnite is 30% more, than Iris Plus Graphics 645.
high / 1080p
8−9
10−12
ultra / 1080p
−
10−11
QHD / 1440p
0−1
0−1
low / 720p
16−18
24−27
medium / 1080p
9−10
12−14
The average gaming FPS of Radeon 540X in Forza Horizon 4 is 45% more, than Iris Plus Graphics 645.
low / 768p
40−45
50−55
medium / 768p
35−40
40−45
high / 1080p
7−8
10−12
ultra / 1080p
5−6
6−7
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon 540X in Grand Theft Auto V is 21% more, than Iris Plus Graphics 645.
high / 1080p
3−4
4−5
ultra / 1080p
2−3
3−4
4K / 2160p
0−1
0−1
low / 720p
7−8
10−12
medium / 1080p
4−5
6−7
The average gaming FPS of Radeon 540X in Metro Exodus is 50% more, than Iris Plus Graphics 645.
low / 768p
85−90
90−95
high / 1080p
80−85
85−90
ultra / 1080p
70−75
75−80
medium / 1080p
−
90−95
The average gaming FPS of Radeon 540X in Minecraft is 6% more, than Iris Plus Graphics 645.
high / 1080p
16−18
16−18
ultra / 1080p
14−16
14−16
low / 720p
24−27
30−33
medium / 1080p
16−18
16−18
The average gaming FPS of Radeon 540X in PLAYERUNKNOWN'S BATTLEGROUNDS is 11% more, than Iris Plus Graphics 645.
ultra / 1080p
7−8
7−8
QHD / 1440p
0−1
0−1
low / 720p
7−8
10−12
medium / 1080p
−
10−11
The average gaming FPS of Radeon 540X in Red Dead Redemption 2 is 28% more, than Iris Plus Graphics 645.
low / 768p
16−18
21−24
medium / 768p
12−14
14−16
high / 1080p
6−7
8−9
ultra / 1080p
5−6
6−7
The average gaming FPS of Radeon 540X in The Witcher 3: Wild Hunt is 30% more, than Iris Plus Graphics 645.
low / 768p
80−85
85−90
medium / 768p
35−40
40−45
ultra / 1080p
14−16
18−20
high / 768p
30−33
35−40
The average gaming FPS of Radeon 540X in World of Tanks is 12% more, than Iris Plus Graphics 645.
Full Specs
Iris Plus Graphics 645
Radeon 540X
Architecture
Gen. 9.5 Coffee Lake
GCN 4.0
Code name
Kaby Lake GT3e
Lexa
Type
Laptop
Laptop
Release date
10 July 2019
12 August 2019
Pipelines
48
512
Core clock speed
300 MHz
Boost Clock
1150 MHz
1219 MHz
Transistor count
2,200 million
Manufacturing process technology
14 nm
14 nm
Texture fill rate
50.40
33.47
Memory bus width
64 Bit
Memory clock speed
6000 MHz
Memory bandwidth
112.0 GB/s
Shared memory
+
-
DirectX
12 (12_1)
12 (12_0)
Shader Model
6.4
6.4
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.1.103
1.2.131
Quick Sync
+
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