Iris Plus Graphics 645 vs Radeon HD 7990
Find out if it is worth upgrading your current GPU setup by comparing Iris Plus Graphics 645 and Radeon HD 7990. 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 7990. 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 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 HD 7990
Power consumption (TDP)
15 Watt
375 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
Memory type
DDR3/DDR4
GDDR5
Maximum RAM amount
3 GB
Display Connectors
No outputs
1x DVI, 4x mini-DisplayPort
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Radeon HD 7990 has 2400% more power consumption, than Iris Plus Graphics 645.
Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon HD 7990 uses PCIe 3.0 x16 interface.
Iris Plus Graphics 645 is used in Laptops, and Radeon HD 7990 - in Desktops.
Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon HD 7990 - with GCN 1.0.
Core clock speed of Radeon HD 7990 is 650 MHz higher, than Iris Plus Graphics 645.
Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon HD 7990 - 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 HD 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 in World of Tanks is 63% more, than Iris Plus Graphics 645.
Full Specs
Iris Plus Graphics 645
Radeon HD 7990
Architecture
Gen. 9.5 Coffee Lake
GCN 1.0
Code name
Kaby Lake GT3e
Malta
Type
Laptop
Desktop
Release date
10 July 2019
24 April 2013
Pipelines
48
2048
Core clock speed
300 MHz
950 MHz
Boost Clock
1150 MHz
1000 MHz
Transistor count
4,313 million
Manufacturing process technology
14 nm
28 nm
Texture fill rate
50.40
128.0
Floating-point performance
2x 4,096 gflops
Length
307 mm
Memory bus width
384 Bit
Memory clock speed
6000 MHz
Memory bandwidth
288.0 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)
459 Mh/s
Ethereum / ETH (DaggerHashimoto)
44 Mh/s
Quick Sync
+
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