Iris Plus Graphics 640 vs Radeon HD 7870
If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 640 and Radeon HD 7870, 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 640 stacks up against Radeon HD 7870, check out specs charts below.
Iris Plus Graphics 640 is a Laptop Graphics Card
Note: Iris Plus Graphics 640 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 640 here:
Main Specs
Iris Plus Graphics 640
Radeon HD 7870
Power consumption (TDP)
15 Watt
175 Watt
Interface
PCIe 3.0 x1
Memory type
DDR3L/LPDDR3/DDR4
GDDR5
Maximum RAM amount
32 GB
2 GB
Display Connectors
No outputs
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Radeon HD 7870 has 1066% more power consumption, than Iris Plus Graphics 640.
Iris Plus Graphics 640 has 30 GB more memory, than Radeon HD 7870.
Iris Plus Graphics 640 is used in Laptops, and Radeon HD 7870 - in Desktops.
Iris Plus Graphics 640 is build with Gen. 9.5 Kaby Lake architecture, and Radeon HD 7870 - with GCN.
Core clock speed of Radeon HD 7870 is 700 MHz higher, than Iris Plus Graphics 640.
Iris Plus Graphics 640 is manufactured by 14 nm process technology, and Radeon HD 7870 - 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
6−7
24−27
ultra / 1080p
4−5
14−16
QHD / 1440p
0−1
9−10
4K / 2160p
−
6−7
low / 720p
16−18
45−50
medium / 1080p
8−9
30−33
The average gaming FPS of Radeon HD 7870 in Assassin's Creed Odyssey is 222% more, than Iris Plus Graphics 640.
high / 1080p
12−14
35−40
ultra / 1080p
10−11
30−35
QHD / 1440p
0−1
16−18
4K / 2160p
−
10−11
low / 720p
24−27
75−80
medium / 1080p
12−14
40−45
The average gaming FPS of Radeon HD 7870 in Battlefield 5 is 213% more, than Iris Plus Graphics 640.
low / 768p
45−50
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7870 in Call of Duty: Warzone is 10% more, than Iris Plus Graphics 640.
low / 768p
130−140
240−250
medium / 768p
110−120
210−220
ultra / 1080p
50−55
130−140
QHD / 1440p
27−30
100−110
4K / 2160p
27−30
60−65
high / 768p
80−85
180−190
The average gaming FPS of Radeon HD 7870 in Counter-Strike: Global Offensive is 115% more, than Iris Plus Graphics 640.
low / 768p
55−60
60−65
ultra / 1080p
18−20
−
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon HD 7870 in Cyberpunk 2077 is 15% more, than Iris Plus Graphics 640.
low / 768p
80−85
120−130
medium / 768p
55−60
110−120
ultra / 1080p
30−35
85−90
The average gaming FPS of Radeon HD 7870 in Dota 2 is 91% more, than Iris Plus Graphics 640.
high / 1080p
8−9
30−33
ultra / 1080p
7−8
27−30
QHD / 1440p
−
21−24
4K / 2160p
3−4
9−10
low / 720p
18−20
60−65
medium / 1080p
8−9
30−35
The average gaming FPS of Radeon HD 7870 in Far Cry 5 is 255% more, than Iris Plus Graphics 640.
high / 1080p
14−16
35−40
ultra / 1080p
10−11
30−33
QHD / 1440p
−
18−20
low / 720p
60−65
130−140
medium / 1080p
21−24
80−85
The average gaming FPS of Radeon HD 7870 in Fortnite is 162% more, than Iris Plus Graphics 640.
high / 1080p
12−14
40−45
ultra / 1080p
10−12
30−33
QHD / 1440p
1−2
18−20
4K / 2160p
−
14−16
low / 720p
24−27
75−80
medium / 1080p
14−16
45−50
The average gaming FPS of Radeon HD 7870 in Forza Horizon 4 is 230% more, than Iris Plus Graphics 640.
low / 768p
50−55
110−120
medium / 768p
45−50
100−110
high / 1080p
12−14
45−50
ultra / 1080p
6−7
20−22
QHD / 1440p
0−1
10−11
The average gaming FPS of Radeon HD 7870 in Grand Theft Auto V is 148% more, than Iris Plus Graphics 640.
high / 1080p
4−5
14−16
ultra / 1080p
3−4
12−14
QHD / 1440p
−
10−12
4K / 2160p
0−1
4−5
low / 720p
12−14
45−50
medium / 1080p
6−7
21−24
The average gaming FPS of Radeon HD 7870 in Metro Exodus is 300% more, than Iris Plus Graphics 640.
low / 768p
95−100
120−130
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
90−95
110−120
The average gaming FPS of Radeon HD 7870 in Minecraft is 26% more, than Iris Plus Graphics 640.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
30−35
75−80
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon HD 7870 in PLAYERUNKNOWN'S BATTLEGROUNDS is 68% more, than Iris Plus Graphics 640.
high / 1080p
−
16−18
ultra / 1080p
7−8
10−12
QHD / 1440p
0−1
4−5
4K / 2160p
−
2−3
low / 720p
12−14
45−50
medium / 1080p
10−12
24−27
The average gaming FPS of Radeon HD 7870 in Red Dead Redemption 2 is 180% more, than Iris Plus Graphics 640.
low / 768p
24−27
85−90
medium / 768p
16−18
50−55
high / 1080p
9−10
30−33
ultra / 1080p
6−7
16−18
4K / 2160p
6−7
10−11
The average gaming FPS of Radeon HD 7870 in The Witcher 3: Wild Hunt is 200% more, than Iris Plus Graphics 640.
low / 768p
85−90
90−95
medium / 768p
45−50
60−65
ultra / 1080p
18−20
45−50
high / 768p
35−40
55−60
The average gaming FPS of Radeon HD 7870 in World of Tanks is 38% more, than Iris Plus Graphics 640.
Full Specs
Iris Plus Graphics 640
Radeon HD 7870
Architecture
Gen. 9.5 Kaby Lake
GCN
Code name
Kaby Lake GT3e
Pitcairn XT
Type
Laptop
Desktop
Release date
3 January 2017
5 March 2012
Pipelines
48
1280
Core clock speed
300 MHz
1000 MHz
Boost Clock
1050 MHz
Transistor count
189 million
2800 Million
Manufacturing process technology
14 nm
28 nm
Texture fill rate
52.80
Memory bus width
64/128 Bit
256 Bit
Memory clock speed
4800 MHz
Shared memory
+
-
DirectX
12 (12_1)
DirectX 11.1, Shader 5.1
Shader Model
6.4
OpenGL
4.6
OpenCL
2.1
Vulkan
1.1.103
Monero / XMR (CryptoNight)
0.39 kh/s
Eyefinity
+
Decred / DCR (Decred)
0.63 Gh/s
Ethereum / ETH (DaggerHashimoto)
16.6 Mh/s
Zcash / ZEC (Equihash)
145 Sol/s
Quick Sync
+
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