GeForce GTX 660 Ti vs Iris Plus Graphics 640
Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660 Ti and Iris Plus Graphics 640. 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 GTX 660 Ti and Iris Plus Graphics 640. 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.
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
GeForce GTX 660 Ti
Iris Plus Graphics 640
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
32 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 Plus Graphics 640.
GeForce GTX 660 Ti is connected by PCIe 3.0 x16, and Iris Plus Graphics 640 uses PCIe 3.0 x1 interface.
Iris Plus Graphics 640 has 30 GB more memory, than GeForce GTX 660 Ti.
GeForce GTX 660 Ti is used in Desktops, and Iris Plus Graphics 640 - in Laptops.
GeForce GTX 660 Ti is build with Kepler architecture, and Iris Plus Graphics 640 - with Gen. 9.5 Kaby Lake.
Core clock speed of GeForce GTX 660 Ti is 615 MHz higher, than Iris Plus Graphics 640.
GeForce GTX 660 Ti is manufactured by 28 nm process technology, and Iris Plus Graphics 640 - 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
6−7
ultra / 1080p
12−14
4−5
QHD / 1440p
8−9
0−1
4K / 2160p
5−6
−
low / 720p
40−45
16−18
medium / 1080p
27−30
8−9
The average gaming FPS of GeForce GTX 660 Ti in Assassin's Creed Odyssey is 188% more, than Iris Plus Graphics 640.
high / 1080p
35−40
12−14
ultra / 1080p
30−35
10−11
QHD / 1440p
14−16
0−1
4K / 2160p
9−10
−
low / 720p
70−75
24−27
medium / 1080p
40−45
12−14
The average gaming FPS of GeForce GTX 660 Ti in Battlefield 5 is 206% more, than Iris Plus Graphics 640.
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 Plus Graphics 640.
low / 768p
230−240
130−140
medium / 768p
210−220
110−120
ultra / 1080p
120−130
50−55
QHD / 1440p
100−110
27−30
4K / 2160p
55−60
27−30
high / 768p
170−180
80−85
The average gaming FPS of GeForce GTX 660 Ti in Counter-Strike: Global Offensive is 108% more, than Iris Plus Graphics 640.
low / 768p
60−65
55−60
ultra / 1080p
55−60
18−20
medium / 1080p
55−60
45−50
The average gaming FPS of GeForce GTX 660 Ti in Cyberpunk 2077 is 43% more, than Iris Plus Graphics 640.
low / 768p
120−130
80−85
medium / 768p
110−120
55−60
ultra / 1080p
85−90
30−35
The average gaming FPS of GeForce GTX 660 Ti in Dota 2 is 91% more, than Iris Plus Graphics 640.
high / 1080p
27−30
8−9
ultra / 1080p
24−27
7−8
QHD / 1440p
20−22
−
4K / 2160p
9−10
3−4
low / 720p
55−60
18−20
medium / 1080p
30−33
8−9
The average gaming FPS of GeForce GTX 660 Ti in Far Cry 5 is 233% more, than Iris Plus Graphics 640.
high / 1080p
35−40
14−16
ultra / 1080p
27−30
10−11
QHD / 1440p
16−18
−
low / 720p
130−140
60−65
medium / 1080p
75−80
21−24
The average gaming FPS of GeForce GTX 660 Ti in Fortnite is 155% more, than Iris Plus Graphics 640.
high / 1080p
35−40
12−14
ultra / 1080p
27−30
10−12
QHD / 1440p
16−18
1−2
4K / 2160p
14−16
−
low / 720p
75−80
24−27
medium / 1080p
40−45
14−16
The average gaming FPS of GeForce GTX 660 Ti in Forza Horizon 4 is 207% more, than Iris Plus Graphics 640.
low / 768p
110−120
50−55
medium / 768p
95−100
45−50
high / 1080p
45−50
12−14
ultra / 1080p
18−20
6−7
QHD / 1440p
9−10
0−1
The average gaming FPS of GeForce GTX 660 Ti in Grand Theft Auto V is 137% more, than Iris Plus Graphics 640.
high / 1080p
14−16
4−5
ultra / 1080p
10−12
3−4
QHD / 1440p
10−12
−
4K / 2160p
3−4
0−1
low / 720p
40−45
12−14
medium / 1080p
20−22
6−7
The average gaming FPS of GeForce GTX 660 Ti in Metro Exodus is 266% more, than Iris Plus Graphics 640.
low / 768p
120−130
95−100
high / 1080p
−
90−95
ultra / 1080p
−
80−85
medium / 1080p
110−120
90−95
The average gaming FPS of GeForce GTX 660 Ti in Minecraft is 26% more, than Iris Plus Graphics 640.
high / 1080p
−
16−18
ultra / 1080p
14−16
14−16
low / 720p
75−80
30−35
medium / 1080p
18−20
18−20
The average gaming FPS of GeForce GTX 660 Ti in PLAYERUNKNOWN'S BATTLEGROUNDS is 68% more, than Iris Plus Graphics 640.
high / 1080p
16−18
−
ultra / 1080p
10−12
7−8
QHD / 1440p
3−4
0−1
4K / 2160p
2−3
−
low / 720p
40−45
12−14
medium / 1080p
21−24
10−12
The average gaming FPS of GeForce GTX 660 Ti in Red Dead Redemption 2 is 150% more, than Iris Plus Graphics 640.
low / 768p
80−85
24−27
medium / 768p
50−55
16−18
high / 1080p
27−30
9−10
ultra / 1080p
16−18
6−7
4K / 2160p
9−10
6−7
The average gaming FPS of GeForce GTX 660 Ti in The Witcher 3: Wild Hunt is 192% more, than Iris Plus Graphics 640.
low / 768p
90−95
85−90
medium / 768p
60−65
45−50
ultra / 1080p
40−45
18−20
high / 768p
55−60
35−40
The average gaming FPS of GeForce GTX 660 Ti in World of Tanks is 34% more, than Iris Plus Graphics 640.
Full Specs
GeForce GTX 660 Ti
Iris Plus Graphics 640
Architecture
Kepler
Gen. 9.5 Kaby Lake
Code name
GK104
Kaby Lake GT3e
Type
Desktop
Laptop
Release date
16 August 2012
3 January 2017
Pipelines
1344
48
Core clock speed
915 MHz
300 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
52.80
Floating-point performance
2,459.5 gflops
Length
9.5" (24.1 cm)
Memory bus width
192-bit GDDR5
64/128 Bit
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
1.1.103
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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