GeForce GTX 660 Ti vs Iris Pro Graphics 580
If you are going to buy a new graphics card and are choosing between GeForce GTX 660 Ti and Iris Pro Graphics 580, 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 GeForce GTX 660 Ti stacks up against Iris Pro Graphics 580, check out specs charts below.
Iris Pro Graphics 580 is a Laptop Graphics Card
Note: Iris Pro Graphics 580 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 580 here:
Main Specs
GeForce GTX 660 Ti
Iris Pro Graphics 580
Power consumption (TDP)
150 Watt
15 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Supplementary power connectors
Two 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
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GeForce GTX 660 Ti has 900% more power consumption, than Iris Pro Graphics 580.
GeForce GTX 660 Ti is connected by PCIe 3.0 x16, and Iris Pro Graphics 580 uses PCIe 3.0 x1 interface.
Iris Pro Graphics 580 has 62 GB more memory, than GeForce GTX 660 Ti.
GeForce GTX 660 Ti is used in Desktops, and Iris Pro Graphics 580 - in Laptops.
GeForce GTX 660 Ti is build with Kepler architecture, and Iris Pro Graphics 580 - with Gen. 9 Skylake.
Core clock speed of GeForce GTX 660 Ti is 565 MHz higher, than Iris Pro Graphics 580.
GeForce GTX 660 Ti is manufactured by 28 nm process technology, and Iris Pro Graphics 580 - 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
21−24
9−10
ultra / 1080p
12−14
5−6
QHD / 1440p
8−9
0−1
4K / 2160p
5−6
−
low / 720p
40−45
20−22
medium / 1080p
27−30
10−12
The average gaming FPS of GeForce GTX 660 Ti in Assassin's Creed Odyssey is 136% more, than Iris Pro Graphics 580.
high / 1080p
35−40
14−16
ultra / 1080p
30−35
12−14
QHD / 1440p
14−16
0−1
4K / 2160p
9−10
−
low / 720p
70−75
30−35
medium / 1080p
40−45
16−18
The average gaming FPS of GeForce GTX 660 Ti in Battlefield 5 is 142% more, than Iris Pro Graphics 580.
low / 768p
50−55
45−50
high / 1080p
−
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 660 Ti in Call of Duty: Warzone is 10% more, than Iris Pro Graphics 580.
low / 768p
230−240
150−160
medium / 768p
210−220
130−140
ultra / 1080p
120−130
65−70
QHD / 1440p
100−110
35−40
4K / 2160p
55−60
27−30
high / 768p
170−180
95−100
The average gaming FPS of GeForce GTX 660 Ti in Counter-Strike: Global Offensive is 76% more, than Iris Pro Graphics 580.
low / 768p
60−65
55−60
ultra / 1080p
55−60
24−27
medium / 1080p
55−60
45−50
The average gaming FPS of GeForce GTX 660 Ti in Cyberpunk 2077 is 37% more, than Iris Pro Graphics 580.
low / 768p
120−130
90−95
medium / 768p
110−120
70−75
ultra / 1080p
85−90
40−45
The average gaming FPS of GeForce GTX 660 Ti in Dota 2 is 57% more, than Iris Pro Graphics 580.
high / 1080p
27−30
10−11
ultra / 1080p
24−27
10−11
QHD / 1440p
20−22
−
4K / 2160p
9−10
4−5
low / 720p
55−60
24−27
medium / 1080p
30−33
10−12
The average gaming FPS of GeForce GTX 660 Ti in Far Cry 5 is 150% more, than Iris Pro Graphics 580.
high / 1080p
35−40
16−18
ultra / 1080p
27−30
12−14
QHD / 1440p
16−18
−
low / 720p
130−140
70−75
medium / 1080p
75−80
30−35
The average gaming FPS of GeForce GTX 660 Ti in Fortnite is 109% more, than Iris Pro Graphics 580.
high / 1080p
35−40
14−16
ultra / 1080p
27−30
12−14
QHD / 1440p
16−18
3−4
4K / 2160p
14−16
−
low / 720p
75−80
30−35
medium / 1080p
40−45
18−20
The average gaming FPS of GeForce GTX 660 Ti in Forza Horizon 4 is 150% more, than Iris Pro Graphics 580.
low / 768p
110−120
60−65
medium / 768p
95−100
50−55
high / 1080p
45−50
16−18
ultra / 1080p
18−20
8−9
QHD / 1440p
9−10
0−1
The average gaming FPS of GeForce GTX 660 Ti in Grand Theft Auto V is 97% more, than Iris Pro Graphics 580.
high / 1080p
14−16
6−7
ultra / 1080p
10−12
4−5
QHD / 1440p
10−12
−
4K / 2160p
3−4
1−2
low / 720p
40−45
16−18
medium / 1080p
20−22
8−9
The average gaming FPS of GeForce GTX 660 Ti in Metro Exodus is 157% more, than Iris Pro Graphics 580.
low / 768p
120−130
95−100
high / 1080p
−
95−100
ultra / 1080p
−
85−90
medium / 1080p
110−120
95−100
The average gaming FPS of GeForce GTX 660 Ti in Minecraft is 23% more, than Iris Pro Graphics 580.
high / 1080p
−
18−20
ultra / 1080p
14−16
14−16
low / 720p
75−80
35−40
medium / 1080p
18−20
18−20
The average gaming FPS of GeForce GTX 660 Ti in PLAYERUNKNOWN'S BATTLEGROUNDS is 60% more, than Iris Pro Graphics 580.
high / 1080p
16−18
12−14
ultra / 1080p
10−12
8−9
QHD / 1440p
3−4
0−1
4K / 2160p
2−3
−
low / 720p
40−45
16−18
medium / 1080p
21−24
12−14
The average gaming FPS of GeForce GTX 660 Ti in Red Dead Redemption 2 is 91% more, than Iris Pro Graphics 580.
low / 768p
80−85
30−35
medium / 768p
50−55
21−24
high / 1080p
27−30
10−12
ultra / 1080p
16−18
7−8
4K / 2160p
9−10
6−7
The average gaming FPS of GeForce GTX 660 Ti in The Witcher 3: Wild Hunt is 137% more, than Iris Pro Graphics 580.
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 Ti in World of Tanks is 18% more, than Iris Pro Graphics 580.
Full Specs
GeForce GTX 660 Ti
Iris Pro Graphics 580
Architecture
Kepler
Gen. 9 Skylake
Code name
GK104
Skylake GT4e
Type
Desktop
Laptop
Release date
16 August 2012
1 September 2015
Pipelines
1344
72
Core clock speed
915 MHz
350 MHz
Boost Clock
980 MHz
1050 MHz
Transistor count
3,540 million
189 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
102.5 billion/sec
72.00
Floating-point performance
2,459.5 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
1344
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)
99 Mh/s
Quick Sync
+
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