Iris Plus Graphics 645 vs Radeon HD 6990M Crossfire
Find out if it is worth upgrading your current GPU setup by comparing Iris Plus Graphics 645 and Radeon HD 6990M Crossfire. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Iris Plus Graphics 645 and Radeon HD 6990M Crossfire. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
Iris Plus Graphics 645 and Radeon HD 6990M Crossfire are Laptop Graphics Cards
Note: Iris Plus Graphics 645 and Radeon HD 6990M Crossfire 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 6990M Crossfire here:
Main Specs
Iris Plus Graphics 645
Radeon HD 6990M Crossfire
Power consumption (TDP)
15 Watt
Interface
PCIe 3.0 x1
Memory type
DDR3/DDR4
GDDR5
Maximum RAM amount
2x2 GB
Display Connectors
No outputs
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Both cards are used in Laptops.
Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
Core clock speed of Radeon HD 6990M Crossfire is 415 MHz higher, than Iris Plus Graphics 645.
Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon HD 6990M Crossfire - by 40 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire in World of Tanks is 63% more, than Iris Plus Graphics 645.
Full Specs
Iris Plus Graphics 645
Radeon HD 6990M Crossfire
Architecture
Gen. 9.5 Coffee Lake
Terascale 2
Code name
Kaby Lake GT3e
Blackcomb XTX
Type
Laptop
Laptop
Release date
10 July 2019
12 July 2011
Pipelines
48
2240
Core clock speed
300 MHz
715 MHz
Boost Clock
1150 MHz
Transistor count
2x1700 Million
Manufacturing process technology
14 nm
40 nm
Texture fill rate
50.40
Memory bus width
256 Bit
Memory clock speed
900 MHz
Shared memory
+
-
DirectX
12 (12_1)
DirectX 11, Shader 5.0
Shader Model
6.4
OpenGL
4.6
OpenCL
2.1
Vulkan
1.1.103
Laptop size
large
Quick Sync
+
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