GeForce GT 640M vs Iris Pro Graphics P580
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and Iris Pro Graphics P580. 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 GeForce GT 640M and Iris Pro Graphics P580. 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.
GeForce GT 640M and Iris Pro Graphics P580 are Laptop Graphics Cards
Note: GeForce GT 640M and Iris Pro Graphics P580 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 GeForce GT 640M or Iris Pro Graphics P580 here:
Main Specs
GeForce GT 640M
Iris Pro Graphics P580
Power consumption (TDP)
32 Watt
15 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Memory type
DDR3\GDDR5
DDR3L/LPDDR3/DDR4
Maximum RAM amount
2 GB
64 GB
Display Connectors
No outputs
No outputs
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GeForce GT 640M has 113% more power consumption, than Iris Pro Graphics P580.
GeForce GT 640M is connected by PCIe 3.0 x16, and Iris Pro Graphics P580 uses PCIe 3.0 x1 interface.
Iris Pro Graphics P580 has 62 GB more memory, than GeForce GT 640M.
Both cards are used in Laptops.
GeForce GT 640M is build with Kepler architecture, and Iris Pro Graphics P580 - with Gen. 9 Skylake.
GeForce GT 640M is manufactured by 28 nm process technology, and Iris Pro Graphics P580 - by 14 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
0−1
10−11
ultra / 1080p
0−1
6−7
QHD / 1440p
0−1
0−1
low / 720p
10−12
21−24
medium / 1080p
2−3
12−14
The average gaming FPS of Iris Pro Graphics P580 in Assassin's Creed Odyssey is 183% more, than GeForce GT 640M.
high / 1080p
−
16−18
ultra / 1080p
3−4
14−16
QHD / 1440p
0−1
0−1
low / 720p
12−14
35−40
medium / 1080p
4−5
18−20
The average gaming FPS of Iris Pro Graphics P580 in Battlefield 5 is 228% more, than GeForce GT 640M.
low / 768p
50−55
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 640M in Call of Duty: Warzone is 10% more, than Iris Pro Graphics P580.
low / 768p
110−120
170−180
medium / 768p
85−90
140−150
ultra / 1080p
35−40
70−75
QHD / 1440p
−
40−45
4K / 2160p
10−11
30−33
high / 768p
55−60
100−110
The average gaming FPS of Iris Pro Graphics P580 in Counter-Strike: Global Offensive is 72% more, than GeForce GT 640M.
low / 768p
70−75
55−60
ultra / 1080p
12−14
27−30
medium / 1080p
45−50
45−50
GeForce GT 640M and Iris Pro Graphics P580 have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
90−95
medium / 768p
40−45
75−80
ultra / 1080p
18−20
45−50
The average gaming FPS of Iris Pro Graphics P580 in Dota 2 is 63% more, than GeForce GT 640M.
high / 1080p
2−3
10−12
ultra / 1080p
2−3
10−12
4K / 2160p
0−1
4−5
low / 720p
9−10
27−30
medium / 1080p
3−4
12−14
The average gaming FPS of Iris Pro Graphics P580 in Far Cry 5 is 275% more, than GeForce GT 640M.
high / 1080p
−
18−20
ultra / 1080p
5−6
12−14
QHD / 1440p
1−2
−
low / 720p
45−50
75−80
medium / 1080p
7−8
35−40
The average gaming FPS of Iris Pro Graphics P580 in Fortnite is 110% more, than GeForce GT 640M.
high / 1080p
2−3
16−18
ultra / 1080p
−
14−16
QHD / 1440p
0−1
4−5
low / 720p
14−16
35−40
medium / 1080p
5−6
18−20
The average gaming FPS of Iris Pro Graphics P580 in Forza Horizon 4 is 242% more, than GeForce GT 640M.
low / 768p
40−45
65−70
medium / 768p
−
55−60
high / 1080p
3−4
18−20
ultra / 1080p
2−3
8−9
QHD / 1440p
0−1
0−1
medium / 720p
30−35
−
The average gaming FPS of Iris Pro Graphics P580 in Grand Theft Auto V is 93% more, than GeForce GT 640M.
high / 1080p
1−2
6−7
ultra / 1080p
0−1
5−6
4K / 2160p
0−1
1−2
low / 720p
2−3
18−20
medium / 1080p
2−3
9−10
The average gaming FPS of Iris Pro Graphics P580 in Metro Exodus is 450% more, than GeForce GT 640M.
low / 768p
85−90
100−110
high / 1080p
55−60
−
ultra / 1080p
−
90−95
medium / 1080p
−
95−100
The average gaming FPS of Iris Pro Graphics P580 in Minecraft is 20% more, than GeForce GT 640M.
high / 1080p
14−16
18−20
ultra / 1080p
12−14
14−16
low / 720p
24−27
40−45
medium / 1080p
14−16
20−22
The average gaming FPS of Iris Pro Graphics P580 in PLAYERUNKNOWN'S BATTLEGROUNDS is 41% more, than GeForce GT 640M.
high / 1080p
−
12−14
ultra / 1080p
3−4
8−9
QHD / 1440p
0−1
0−1
low / 720p
3−4
18−20
medium / 1080p
−
12−14
The average gaming FPS of Iris Pro Graphics P580 in Red Dead Redemption 2 is 333% more, than GeForce GT 640M.
low / 768p
7−8
35−40
medium / 768p
6−7
21−24
high / 1080p
3−4
12−14
ultra / 1080p
−
8−9
4K / 2160p
0−1
7−8
The average gaming FPS of Iris Pro Graphics P580 in The Witcher 3: Wild Hunt is 380% more, than GeForce GT 640M.
low / 768p
70−75
90−95
medium / 768p
35−40
50−55
ultra / 1080p
12−14
24−27
high / 768p
27−30
40−45
The average gaming FPS of Iris Pro Graphics P580 in World of Tanks is 43% more, than GeForce GT 640M.
Full Specs
GeForce GT 640M
Iris Pro Graphics P580
Architecture
Kepler
Gen. 9 Skylake
Code name
N13P-GS
Skylake GT4e
Type
Laptop
Laptop
Release date
22 March 2012
1 September 2015
Pipelines
384
72
Core clock speed
350 MHz
Boost Clock
645 MHz
1100 MHz
Transistor count
1,270 million
189 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
75.60
Floating-point performance
480.0 gflops
Memory bus width
128bit
Memory clock speed
1800 - 4000 MHz
Shared memory
-
+
DirectX
12 API
12 (12_1)
Shader Model
5.1
6.4
OpenGL
4.5
4.6
OpenCL
1.1
2.1
Vulkan
1.1.126
1.1.97
CUDA
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
18 Mh/s
Laptop size
medium sized
Optimus
+
Quick Sync
+
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