Iris Plus Graphics 655 vs Radeon HD 8790M
If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 655 and Radeon HD 8790M, 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 655 stacks up against Radeon HD 8790M, check out specs charts below.
Iris Plus Graphics 655 and Radeon HD 8790M are Laptop Graphics Cards
Note: Iris Plus Graphics 655 and Radeon HD 8790M 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 655 or Radeon HD 8790M here:
Main Specs
Iris Plus Graphics 655
Radeon HD 8790M
Power consumption (TDP)
15 Watt
Interface
PCIe 3.0 x1
MXM-A (3.0)
Supplementary power connectors
None
Memory type
DDR3/DDR4
GDDR5
Maximum RAM amount
2 GB
Display Connectors
No outputs
No outputs
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Iris Plus Graphics 655 is connected by PCIe 3.0 x1, and Radeon HD 8790M uses MXM-A (3.0) interface.
Both cards are used in Laptops.
Iris Plus Graphics 655 is build with Gen. 9.5 Kaby Lake architecture, and Radeon HD 8790M - with GCN.
Core clock speed of Radeon HD 8790M is 550 MHz higher, than Iris Plus Graphics 655.
Iris Plus Graphics 655 is manufactured by 14 nm process technology, and Radeon HD 8790M - 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
12−14
3−4
ultra / 1080p
7−8
1−2
QHD / 1440p
2−3
0−1
low / 720p
27−30
14−16
medium / 1080p
16−18
6−7
The average gaming FPS of Iris Plus Graphics 655 in Assassin's Creed Odyssey is 166% more, than Radeon HD 8790M.
high / 1080p
21−24
8−9
ultra / 1080p
18−20
6−7
QHD / 1440p
4−5
0−1
low / 720p
45−50
21−24
medium / 1080p
21−24
9−10
The average gaming FPS of Iris Plus Graphics 655 in Battlefield 5 is 145% more, than Radeon HD 8790M.
low / 768p
45−50
45−50
high / 1080p
−
40−45
QHD / 1440p
0−1
0−1
Iris Plus Graphics 655 and Radeon HD 8790M have the same average FPS in Call of Duty: Warzone.
low / 768p
190−200
120−130
medium / 768p
160−170
100−110
ultra / 1080p
85−90
50−55
QHD / 1440p
45−50
24−27
4K / 2160p
30−33
−
high / 768p
120−130
75−80
The average gaming FPS of Iris Plus Graphics 655 in Counter-Strike: Global Offensive is 61% more, than Radeon HD 8790M.
low / 768p
55−60
70−75
ultra / 1080p
35−40
21−24
medium / 1080p
45−50
40−45
The average gaming FPS of Iris Plus Graphics 655 in Cyberpunk 2077 is 4% more, than Radeon HD 8790M.
low / 768p
100−110
75−80
medium / 768p
85−90
55−60
ultra / 1080p
55−60
30−35
The average gaming FPS of Iris Plus Graphics 655 in Dota 2 is 50% more, than Radeon HD 8790M.
high / 1080p
14−16
4−5
ultra / 1080p
14−16
4−5
4K / 2160p
5−6
1−2
low / 720p
30−35
14−16
medium / 1080p
16−18
6−7
The average gaming FPS of Iris Plus Graphics 655 in Far Cry 5 is 183% more, than Radeon HD 8790M.
high / 1080p
21−24
12−14
ultra / 1080p
16−18
7−8
QHD / 1440p
16−18
4−5
low / 720p
85−90
60−65
medium / 1080p
45−50
18−20
The average gaming FPS of Iris Plus Graphics 655 in Fortnite is 80% more, than Radeon HD 8790M.
high / 1080p
21−24
8−9
ultra / 1080p
16−18
7−8
QHD / 1440p
7−8
0−1
low / 720p
45−50
21−24
medium / 1080p
24−27
10−11
The average gaming FPS of Iris Plus Graphics 655 in Forza Horizon 4 is 133% more, than Radeon HD 8790M.
low / 768p
75−80
50−55
medium / 768p
65−70
−
high / 1080p
24−27
10−11
ultra / 1080p
10−11
4−5
QHD / 1440p
1−2
0−1
medium / 720p
−
40−45
The average gaming FPS of Iris Plus Graphics 655 in Grand Theft Auto V is 68% more, than Radeon HD 8790M.
high / 1080p
8−9
2−3
ultra / 1080p
6−7
0−1
4K / 2160p
2−3
0−1
low / 720p
24−27
9−10
medium / 1080p
10−12
4−5
The average gaming FPS of Iris Plus Graphics 655 in Metro Exodus is 200% more, than Radeon HD 8790M.
low / 768p
100−110
85−90
high / 1080p
−
70−75
ultra / 1080p
95−100
−
medium / 1080p
100−110
−
The average gaming FPS of Iris Plus Graphics 655 in Minecraft is 20% more, than Radeon HD 8790M.
high / 1080p
21−24
−
ultra / 1080p
16−18
12−14
low / 720p
50−55
30−35
medium / 1080p
21−24
14−16
The average gaming FPS of Iris Plus Graphics 655 in PLAYERUNKNOWN'S BATTLEGROUNDS is 50% more, than Radeon HD 8790M.
high / 1080p
12−14
7−8
ultra / 1080p
9−10
4−5
QHD / 1440p
0−1
0−1
low / 720p
24−27
8−9
medium / 1080p
14−16
8−9
The average gaming FPS of Iris Plus Graphics 655 in Red Dead Redemption 2 is 114% more, than Radeon HD 8790M.
low / 768p
45−50
20−22
medium / 768p
27−30
12−14
high / 1080p
16−18
7−8
ultra / 1080p
9−10
5−6
4K / 2160p
7−8
1−2
The average gaming FPS of Iris Plus Graphics 655 in The Witcher 3: Wild Hunt is 144% more, than Radeon HD 8790M.
low / 768p
95−100
75−80
medium / 768p
55−60
40−45
ultra / 1080p
30−35
18−20
high / 768p
50−55
30−35
The average gaming FPS of Iris Plus Graphics 655 in World of Tanks is 42% more, than Radeon HD 8790M.
Full Specs
Iris Plus Graphics 655
Radeon HD 8790M
Architecture
Gen. 9.5 Kaby Lake
GCN
Code name
Kaby Lake GT3e
Mars XTX
Type
Laptop
Laptop
Release date
1 September 2017
16 November 2012
Pipelines
48
384
Core clock speed
300 MHz
850 MHz
Boost Clock
1200 MHz
900 MHz
Transistor count
189 million
950 million
Manufacturing process technology
14 nm
28 nm
Texture fill rate
50.40
21.60
Floating-point performance
691.2 gflops
Memory bus width
128 Bit
Memory clock speed
4500 MHz
Memory bandwidth
64 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
Bitcoin / BTC (SHA256)
80 Mh/s
Laptop size
medium sized
Quick Sync
+
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