GeForce GTX 660 vs Iris Pro Graphics P580
In this comparison between GeForce GTX 660 and Iris Pro Graphics P580 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GTX 660 will be the best choice, for others Iris Pro Graphics P580 will be their preference. Study the comparison tables below and make your choice.
Iris Pro Graphics P580 is a Laptop Graphics Card
Note: Iris Pro Graphics P580 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 Pro Graphics P580 here:
Main Specs
GeForce GTX 660
Iris Pro Graphics P580
Power consumption (TDP)
140 Watt
15 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Supplementary power connectors
One 6-pin
Memory type
GDDR5
DDR3L/LPDDR3/DDR4
Maximum RAM amount
2 GB
64 GB
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Check Price
Check Price
GeForce GTX 660 has 833% more power consumption, than Iris Pro Graphics P580.
GeForce GTX 660 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 GTX 660.
GeForce GTX 660 is used in Desktops, and Iris Pro Graphics P580 - in Laptops.
GeForce GTX 660 is build with Kepler architecture, and Iris Pro Graphics P580 - with Gen. 9 Skylake.
Core clock speed of GeForce GTX 660 is 630 MHz higher, than Iris Pro Graphics P580.
GeForce GTX 660 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
20−22
10−11
ultra / 1080p
12−14
6−7
QHD / 1440p
6−7
0−1
4K / 2160p
5−6
−
low / 720p
40−45
21−24
medium / 1080p
24−27
12−14
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 92% more, than Iris Pro Graphics P580.
high / 1080p
30−35
16−18
ultra / 1080p
27−30
14−16
QHD / 1440p
10−12
0−1
4K / 2160p
8−9
−
low / 720p
65−70
35−40
medium / 1080p
35−40
18−20
The average gaming FPS of GeForce GTX 660 in Battlefield 5 is 86% more, than Iris Pro Graphics P580.
low / 768p
50−55
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 660 in Call of Duty: Warzone is 10% more, than Iris Pro Graphics P580.
low / 768p
230−240
170−180
medium / 768p
200−210
140−150
ultra / 1080p
120−130
70−75
QHD / 1440p
90−95
40−45
4K / 2160p
50−55
30−33
high / 768p
160−170
100−110
The average gaming FPS of GeForce GTX 660 in Counter-Strike: Global Offensive is 52% more, than Iris Pro Graphics P580.
low / 768p
60−65
55−60
ultra / 1080p
50−55
27−30
medium / 1080p
55−60
45−50
The average gaming FPS of GeForce GTX 660 in Cyberpunk 2077 is 29% more, than Iris Pro Graphics P580.
low / 768p
120−130
90−95
medium / 768p
100−110
75−80
ultra / 1080p
80−85
45−50
The average gaming FPS of GeForce GTX 660 in Dota 2 is 44% more, than Iris Pro Graphics P580.
high / 1080p
24−27
10−12
ultra / 1080p
21−24
10−12
QHD / 1440p
18−20
−
4K / 2160p
8−9
4−5
low / 720p
50−55
27−30
medium / 1080p
27−30
12−14
The average gaming FPS of GeForce GTX 660 in Far Cry 5 is 107% more, than Iris Pro Graphics P580.
high / 1080p
30−35
18−20
ultra / 1080p
24−27
12−14
QHD / 1440p
16−18
−
low / 720p
120−130
75−80
medium / 1080p
70−75
35−40
The average gaming FPS of GeForce GTX 660 in Fortnite is 75% more, than Iris Pro Graphics P580.
high / 1080p
30−35
16−18
ultra / 1080p
24−27
14−16
QHD / 1440p
14−16
4−5
4K / 2160p
12−14
−
low / 720p
65−70
35−40
medium / 1080p
35−40
18−20
The average gaming FPS of GeForce GTX 660 in Forza Horizon 4 is 94% more, than Iris Pro Graphics P580.
low / 768p
100−110
65−70
medium / 768p
90−95
55−60
high / 1080p
40−45
18−20
ultra / 1080p
16−18
8−9
QHD / 1440p
7−8
0−1
The average gaming FPS of GeForce GTX 660 in Grand Theft Auto V is 68% more, than Iris Pro Graphics P580.
high / 1080p
12−14
6−7
ultra / 1080p
10−11
5−6
QHD / 1440p
10−11
−
4K / 2160p
3−4
1−2
low / 720p
40−45
18−20
medium / 1080p
18−20
9−10
The average gaming FPS of GeForce GTX 660 in Metro Exodus is 112% more, than Iris Pro Graphics P580.
low / 768p
120−130
100−110
ultra / 1080p
−
90−95
medium / 1080p
110−120
95−100
The average gaming FPS of GeForce GTX 660 in Minecraft is 18% more, than Iris Pro Graphics P580.
high / 1080p
−
18−20
ultra / 1080p
14−16
14−16
low / 720p
70−75
40−45
medium / 1080p
18−20
20−22
The average gaming FPS of GeForce GTX 660 in PLAYERUNKNOWN'S BATTLEGROUNDS is 34% more, than Iris Pro Graphics P580.
high / 1080p
14−16
12−14
ultra / 1080p
10−11
8−9
QHD / 1440p
1−2
0−1
4K / 2160p
1−2
−
low / 720p
35−40
18−20
medium / 1080p
21−24
12−14
The average gaming FPS of GeForce GTX 660 in Red Dead Redemption 2 is 61% more, than Iris Pro Graphics P580.
low / 768p
70−75
35−40
medium / 768p
45−50
21−24
high / 1080p
24−27
12−14
ultra / 1080p
14−16
8−9
4K / 2160p
8−9
7−8
The average gaming FPS of GeForce GTX 660 in The Witcher 3: Wild Hunt is 94% more, than Iris Pro Graphics P580.
low / 768p
90−95
90−95
medium / 768p
60−65
50−55
ultra / 1080p
40−45
24−27
high / 768p
55−60
40−45
The average gaming FPS of GeForce GTX 660 in World of Tanks is 18% more, than Iris Pro Graphics P580.
Full Specs
GeForce GTX 660
Iris Pro Graphics P580
Architecture
Kepler
Gen. 9 Skylake
Code name
GK106
Skylake GT4e
Type
Desktop
Laptop
Release date
6 September 2012
1 September 2015
Pipelines
960
72
Core clock speed
980 MHz
350 MHz
Boost Clock
1033 MHz
1100 MHz
Transistor count
2,540 million
189 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
78.4 billion/sec
75.60
Floating-point performance
1,981 gflops
Length
9.5" (24.1 cm)
Memory bus width
192-bit GDDR5
Memory clock speed
6.0 GB/s
Memory bandwidth
144.2 GB/s
Shared memory
+
DirectX
12 (11_0)
12 (12_1)
Shader Model
5.1
6.4
OpenGL
4.3
4.6
OpenCL
1.2
2.1
Vulkan
1.1.126
1.1.97
CUDA
+
CUDA cores
960
Bus support
PCI Express 3.0
Height
4.376" (11.1 cm)
SLI options
+
Multi monitor support
4 displays
HDMI
+
HDCP
+
Maximum VGA resolution
2048x1536
Audio input for HDMI
Internal
3D Blu-Ray
+
3D Gaming
+
3D Vision
+
Bitcoin / BTC (SHA256)
66 Mh/s
Quick Sync
+
Check Price
Check Price
