GeForce GT 640 vs GeForce GTX 860M SLI
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640 and GeForce GTX 860M SLI. 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 640 and GeForce GTX 860M SLI. 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 GTX 860M SLI is a Laptop Graphics Card
Note: GeForce GTX 860M SLI 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 GeForce GTX 860M SLI here:
Main Specs
GeForce GT 640
GeForce GTX 860M SLI
Power consumption (TDP)
65 Watt
120 Watt
Interface
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
2x 4 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
Check Price
Check Price
GeForce GTX 860M SLI has 84% more power consumption, than GeForce GT 640.
GeForce GT 640 and GeForce GTX 860M SLI have maximum RAM of 2 GB.
GeForce GT 640 is used in Desktops, and GeForce GTX 860M SLI - in Laptops.
GeForce GT 640 is build with Kepler architecture, and GeForce GTX 860M SLI - with Maxwell.
Core clock speed of GeForce GTX 860M SLI is 127 MHz higher, than GeForce GT 640.
GeForce GT 640 and GeForce GTX 860M SLI are manufactured by 28 nm process technology.
Memory clock speed of GeForce GTX 860M SLI is 3218 MHz higher, than GeForce GT 640.
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
2−3
21−24
ultra / 1080p
1−2
14−16
QHD / 1440p
0−1
8−9
4K / 2160p
−
5−6
low / 720p
14−16
40−45
medium / 1080p
5−6
27−30
The average gaming FPS of GeForce GTX 860M SLI in Assassin's Creed Odyssey is 350% more, than GeForce GT 640.
high / 1080p
7−8
35−40
ultra / 1080p
5−6
30−35
QHD / 1440p
0−1
14−16
4K / 2160p
−
9−10
low / 720p
20−22
75−80
medium / 1080p
7−8
40−45
The average gaming FPS of GeForce GTX 860M SLI in Battlefield 5 is 370% more, than GeForce GT 640.
low / 768p
50−55
50−55
high / 1080p
35−40
−
QHD / 1440p
0−1
0−1
GeForce GT 640 and GeForce GTX 860M SLI have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
230−240
medium / 768p
90−95
210−220
ultra / 1080p
45−50
130−140
QHD / 1440p
24−27
100−110
4K / 2160p
18−20
55−60
high / 768p
65−70
170−180
The average gaming FPS of GeForce GTX 860M SLI in Counter-Strike: Global Offensive is 150% more, than GeForce GT 640.
low / 768p
70−75
60−65
ultra / 1080p
21−24
55−60
medium / 1080p
45−50
55−60
The average gaming FPS of GeForce GTX 860M SLI in Cyberpunk 2077 is 25% more, than GeForce GT 640.
low / 768p
70−75
120−130
medium / 768p
50−55
110−120
ultra / 1080p
27−30
85−90
The average gaming FPS of GeForce GTX 860M SLI in Dota 2 is 113% more, than GeForce GT 640.
high / 1080p
3−4
27−30
ultra / 1080p
3−4
24−27
QHD / 1440p
−
21−24
4K / 2160p
2−3
9−10
low / 720p
14−16
55−60
medium / 1080p
4−5
30−33
The average gaming FPS of GeForce GTX 860M SLI in Far Cry 5 is 500% more, than GeForce GT 640.
high / 1080p
10−12
35−40
ultra / 1080p
5−6
27−30
QHD / 1440p
2−3
16−18
low / 720p
50−55
130−140
medium / 1080p
16−18
80−85
The average gaming FPS of GeForce GTX 860M SLI in Fortnite is 252% more, than GeForce GT 640.
high / 1080p
6−7
35−40
ultra / 1080p
−
27−30
QHD / 1440p
4−5
16−18
4K / 2160p
2−3
14−16
low / 720p
21−24
75−80
medium / 1080p
9−10
40−45
The average gaming FPS of GeForce GTX 860M SLI in Forza Horizon 4 is 311% more, than GeForce GT 640.
low / 768p
45−50
110−120
medium / 768p
−
100−105
high / 1080p
7−8
45−50
ultra / 1080p
3−4
18−20
QHD / 1440p
0−1
9−10
medium / 720p
40−45
−
The average gaming FPS of GeForce GTX 860M SLI in Grand Theft Auto V is 215% more, than GeForce GT 640.
high / 1080p
2−3
14−16
ultra / 1080p
0−1
12−14
QHD / 1440p
−
10−12
4K / 2160p
0−1
3−4
low / 720p
8−9
45−50
medium / 1080p
4−5
20−22
The average gaming FPS of GeForce GTX 860M SLI in Metro Exodus is 440% more, than GeForce GT 640.
low / 768p
80−85
120−130
ultra / 1080p
70−75
−
medium / 1080p
−
110−120
The average gaming FPS of GeForce GTX 860M SLI in Minecraft is 52% more, than GeForce GT 640.
ultra / 1080p
12−14
14−16
low / 720p
27−30
75−80
medium / 1080p
14−16
18−20
The average gaming FPS of GeForce GTX 860M SLI in PLAYERUNKNOWN'S BATTLEGROUNDS is 105% more, than GeForce GT 640.
high / 1080p
6−7
16−18
ultra / 1080p
4−5
10−12
QHD / 1440p
0−1
3−4
4K / 2160p
−
2−3
low / 720p
7−8
40−45
medium / 1080p
−
21−24
The average gaming FPS of GeForce GTX 860M SLI in Red Dead Redemption 2 is 283% more, than GeForce GT 640.
low / 768p
14−16
80−85
medium / 768p
10−11
50−55
high / 1080p
5−6
27−30
ultra / 1080p
4−5
16−18
4K / 2160p
0−1
9−10
The average gaming FPS of GeForce GTX 860M SLI in The Witcher 3: Wild Hunt is 462% more, than GeForce GT 640.
low / 768p
70−75
90−95
medium / 768p
35−40
60−65
ultra / 1080p
16−18
40−45
high / 768p
30−35
55−60
The average gaming FPS of GeForce GTX 860M SLI in World of Tanks is 61% more, than GeForce GT 640.
Full Specs
GeForce GT 640
GeForce GTX 860M SLI
Architecture
Kepler
Maxwell
Code name
GK107
Type
Desktop
Laptop
Release date
5 June 2012
12 March 2014
Pipelines
384
1280
Core clock speed
902 MHz
1029 MHz
Transistor count
1,270 million
2x 1870 Million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
28.86
Floating-point performance
692.7 gflops
Length
145 mm
Memory bus width
128 Bit
2x 128 Bit
Memory clock speed
1782 MHz
5000 MHz
Memory bandwidth
28.51 GB/s
Shared memory
-
DirectX
12 (11_0)
DirectX 12 (FL 11_0), Shader 5.0
Shader Model
5.1
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.126
CUDA
3.0
+
SLI options
+
Bitcoin / BTC (SHA256)
24 Mh/s
Laptop size
large
Optimus
+
Check Price
Check Price
