Iris Plus Graphics 645 vs Radeon R9 280
When comparing Iris Plus Graphics 645 and Radeon R9 280, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Iris Plus Graphics 645 and Radeon R9 280 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
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 R9 280
Power consumption (TDP)
15 Watt
200 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
Memory type
DDR3/DDR4
GDDR5
Maximum RAM amount
3 GB
Display Connectors
No outputs
2x DVI, 1x HDMI, 2x mini-DisplayPort
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Radeon R9 280 has 1233% more power consumption, than Iris Plus Graphics 645.
Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon R9 280 uses PCIe 3.0 x16 interface.
Iris Plus Graphics 645 is used in Laptops, and Radeon R9 280 - in Desktops.
Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon R9 280 - with GCN 1.0.
Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon R9 280 - 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 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 R9 280 in World of Tanks is 63% more, than Iris Plus Graphics 645.
Full Specs
Iris Plus Graphics 645
Radeon R9 280
Architecture
Gen. 9.5 Coffee Lake
GCN 1.0
Code name
Kaby Lake GT3e
Tahiti
Type
Laptop
Desktop
Release date
10 July 2019
4 March 2014
Pipelines
48
1792
Core clock speed
300 MHz
Boost Clock
1150 MHz
933 MHz
Transistor count
4,313 million
Manufacturing process technology
14 nm
28 nm
Texture fill rate
50.40
104.5
Floating-point performance
3,344 gflops
Length
275 mm
Memory bus width
384 Bit
Memory clock speed
1250 MHz
Memory bandwidth
240 GB/s
Shared memory
+
DirectX
12 (12_1)
Shader Model
6.4
5.1
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.1.103
+
FreeSync
+
Bus support
PCIe 3.0
HDMI
+
Bitcoin / BTC (SHA256)
408 Mh/s
Eyefinity
+
HD3D
+
TrueAudio
+
Design
reference
CrossFire
+
DDMA audio
+
Ethereum / ETH (DaggerHashimoto)
21.5 Mh/s
Quick Sync
+
LiquidVR
+
TressFX
+
UVD
+
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