Iris Plus Graphics 645 vs Radeon HD 8770M
When choosing between Iris Plus Graphics 645 and Radeon HD 8770M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Iris Plus Graphics 645 and Radeon HD 8770M.
Iris Plus Graphics 645 and Radeon HD 8770M are Laptop Graphics Cards
Note: Iris Plus Graphics 645 and Radeon HD 8770M 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 HD 8770M here:
Main Specs
Iris Plus Graphics 645
Radeon HD 8770M
Power consumption (TDP)
15 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x8
Memory type
DDR3/DDR4
GDDR5
Maximum RAM amount
2 GB
Display Connectors
No outputs
No outputs
Check Price
Check Price
Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon HD 8770M 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 HD 8770M - with GCN.
Core clock speed of Radeon HD 8770M is 475 MHz higher, than Iris Plus Graphics 645.
Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon HD 8770M - 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
7−8
ultra / 1080p
2−3
4−5
QHD / 1440p
0−1
0−1
low / 720p
12−14
16−18
medium / 1080p
5−6
8−9
The average gaming FPS of Radeon HD 8770M in Assassin's Creed Odyssey is 50% more, than Iris Plus Graphics 645.
high / 1080p
−
12−14
ultra / 1080p
7−8
10−11
QHD / 1440p
0−1
0−1
low / 720p
16−18
24−27
medium / 1080p
8−9
12−14
The average gaming FPS of Radeon HD 8770M in Battlefield 5 is 45% 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 HD 8770M have the same average FPS in Call of Duty: Warzone.
low / 768p
100−110
140−150
medium / 768p
80−85
110−120
ultra / 1080p
35−40
55−60
QHD / 1440p
24−27
30−33
4K / 2160p
−
27−30
high / 768p
60−65
80−85
The average gaming FPS of Radeon HD 8770M in Counter-Strike: Global Offensive is 38% more, than Iris Plus Graphics 645.
low / 768p
55−60
55−60
ultra / 1080p
12−14
20−22
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 8770M in Cyberpunk 2077 is 7% more, than Iris Plus Graphics 645.
low / 768p
65−70
80−85
medium / 768p
45−50
60−65
ultra / 1080p
21−24
35−40
The average gaming FPS of Radeon HD 8770M in Dota 2 is 33% more, than Iris Plus Graphics 645.
high / 1080p
5−6
8−9
ultra / 1080p
5−6
8−9
4K / 2160p
3−4
3−4
low / 720p
12−14
18−20
medium / 1080p
5−6
9−10
The average gaming FPS of Radeon HD 8770M in Far Cry 5 is 50% more, than Iris Plus Graphics 645.
high / 1080p
12−14
14−16
ultra / 1080p
8−9
10−11
low / 720p
45−50
60−65
medium / 1080p
12−14
24−27
The average gaming FPS of Radeon HD 8770M in Fortnite is 40% more, than Iris Plus Graphics 645.
high / 1080p
8−9
12−14
ultra / 1080p
−
10−12
QHD / 1440p
0−1
1−2
low / 720p
16−18
27−30
medium / 1080p
9−10
14−16
The average gaming FPS of Radeon HD 8770M in Forza Horizon 4 is 63% more, than Iris Plus Graphics 645.
low / 768p
40−45
50−55
medium / 768p
35−40
45−50
high / 1080p
7−8
12−14
ultra / 1080p
5−6
6−7
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 8770M in Grand Theft Auto V is 26% more, than Iris Plus Graphics 645.
high / 1080p
3−4
5−6
ultra / 1080p
2−3
3−4
4K / 2160p
0−1
0−1
low / 720p
7−8
12−14
medium / 1080p
4−5
6−7
The average gaming FPS of Radeon HD 8770M in Metro Exodus is 75% more, than Iris Plus Graphics 645.
low / 768p
85−90
95−100
high / 1080p
80−85
90−95
ultra / 1080p
70−75
80−85
medium / 1080p
−
90−95
The average gaming FPS of Radeon HD 8770M in Minecraft is 12% more, than Iris Plus Graphics 645.
high / 1080p
16−18
16−18
ultra / 1080p
14−16
14−16
low / 720p
24−27
30−35
medium / 1080p
16−18
18−20
The average gaming FPS of Radeon HD 8770M 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
12−14
medium / 1080p
−
10−12
The average gaming FPS of Radeon HD 8770M in Red Dead Redemption 2 is 42% more, than Iris Plus Graphics 645.
low / 768p
16−18
24−27
medium / 768p
12−14
16−18
high / 1080p
6−7
9−10
ultra / 1080p
5−6
6−7
4K / 2160p
−
6−7
The average gaming FPS of Radeon HD 8770M in The Witcher 3: Wild Hunt is 40% more, than Iris Plus Graphics 645.
low / 768p
80−85
85−90
medium / 768p
35−40
45−50
ultra / 1080p
14−16
20−22
high / 768p
30−33
35−40
The average gaming FPS of Radeon HD 8770M in World of Tanks is 17% more, than Iris Plus Graphics 645.
Full Specs
Iris Plus Graphics 645
Radeon HD 8770M
Architecture
Gen. 9.5 Coffee Lake
GCN
Code name
Kaby Lake GT3e
Mars
Type
Laptop
Laptop
Release date
10 July 2019
16 November 2012
Pipelines
48
384
Core clock speed
300 MHz
775 MHz
Boost Clock
1150 MHz
825 MHz
Transistor count
950 million
Manufacturing process technology
14 nm
28 nm
Texture fill rate
50.40
19.80
Floating-point performance
633.6 gflops
Memory bus width
128 Bit
Memory clock speed
4500 MHz
Memory bandwidth
72 GB/s
Shared memory
+
-
DirectX
12 (12_1)
12 (11_1)
Shader Model
6.4
5.1
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.1.103
1.2.131
Laptop size
medium sized
Quick Sync
+
Check Price
Check Price
