GeForce GT 640M LE vs Maxwell GPU Surface Book
When comparing GeForce GT 640M LE and Maxwell GPU Surface Book, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 640M LE and Maxwell GPU Surface Book is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce GT 640M LE and Maxwell GPU Surface Book are Laptop Graphics Cards
Note: GeForce GT 640M LE and Maxwell GPU Surface Book 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 LE or Maxwell GPU Surface Book here:
Main Specs
GeForce GT 640M LE
Maxwell GPU Surface Book
Power consumption (TDP)
20 Watt
Interface
PCIe 2.0 x16
Memory type
DDR3\DDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Display Connectors
No outputs
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GeForce GT 640M LE has 1 GB more memory, than Maxwell GPU Surface Book.
Both cards are used in Laptops.
GeForce GT 640M LE is build with Fermi / Kepler architecture, and Maxwell GPU Surface Book - with Maxwell.
GeForce GT 640M LE and Maxwell GPU Surface Book are manufactured by 28 nm process technology.
Memory clock speed of Maxwell GPU Surface Book is 3212 MHz higher, than GeForce GT 640M LE.
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
8−9
ultra / 1080p
−
5−6
QHD / 1440p
0−1
0−1
low / 720p
1−2
20−22
medium / 1080p
0−1
10−12
The average gaming FPS of Maxwell GPU Surface Book in Assassin's Creed Odyssey is 2000% more, than GeForce GT 640M LE.
high / 1080p
−
14−16
ultra / 1080p
−
12−14
QHD / 1440p
0−1
0−1
low / 720p
0−1
30−35
medium / 1080p
−
16−18
low / 768p
50−55
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 640M LE in Call of Duty: Warzone is 6% more, than Maxwell GPU Surface Book.
low / 768p
60−65
150−160
medium / 768p
27−30
130−140
ultra / 1080p
7−8
65−70
QHD / 1440p
−
35−40
4K / 2160p
−
27−30
high / 768p
16−18
95−100
The average gaming FPS of Maxwell GPU Surface Book in Counter-Strike: Global Offensive is 303% more, than GeForce GT 640M LE.
low / 768p
70−75
55−60
ultra / 1080p
0−1
24−27
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640M LE in Cyberpunk 2077 is 15% more, than Maxwell GPU Surface Book.
low / 768p
45−50
85−90
medium / 768p
10−11
65−70
ultra / 1080p
0−1
40−45
The average gaming FPS of Maxwell GPU Surface Book in Dota 2 is 165% more, than GeForce GT 640M LE.
high / 1080p
−
10−11
ultra / 1080p
−
9−10
4K / 2160p
−
4−5
low / 720p
0−1
24−27
medium / 1080p
−
10−12
high / 1080p
−
16−18
ultra / 1080p
−
12−14
low / 720p
21−24
70−75
medium / 1080p
0−1
30−33
The average gaming FPS of Maxwell GPU Surface Book in Fortnite is 227% more, than GeForce GT 640M LE.
high / 1080p
0−1
14−16
ultra / 1080p
−
12−14
QHD / 1440p
0−1
3−4
low / 720p
0−1
30−35
medium / 1080p
0−1
16−18
low / 768p
18−20
60−65
medium / 768p
−
50−55
high / 1080p
0−1
16−18
ultra / 1080p
−
8−9
QHD / 1440p
0−1
0−1
medium / 720p
12−14
−
The average gaming FPS of Maxwell GPU Surface Book in Grand Theft Auto V is 226% more, than GeForce GT 640M LE.
high / 1080p
−
6−7
ultra / 1080p
−
4−5
4K / 2160p
−
1−2
low / 720p
0−1
16−18
medium / 1080p
−
8−9
low / 768p
75−80
95−100
high / 1080p
27−30
95−100
ultra / 1080p
−
85−90
medium / 1080p
−
95−100
The average gaming FPS of Maxwell GPU Surface Book in Minecraft is 83% more, than GeForce GT 640M LE.
high / 1080p
−
18−20
ultra / 1080p
−
14−16
low / 720p
8−9
35−40
medium / 1080p
−
18−20
The average gaming FPS of Maxwell GPU Surface Book in PLAYERUNKNOWN'S BATTLEGROUNDS is 362% more, than GeForce GT 640M LE.
high / 1080p
−
12−14
ultra / 1080p
−
8−9
QHD / 1440p
−
0−1
low / 720p
0−1
16−18
medium / 1080p
−
12−14
low / 768p
0−1
30−35
medium / 768p
−
21−24
high / 1080p
−
10−12
ultra / 1080p
−
7−8
4K / 2160p
−
6−7
low / 768p
45−50
90−95
medium / 768p
14−16
50−55
ultra / 1080p
0−1
24−27
high / 768p
12−14
40−45
The average gaming FPS of Maxwell GPU Surface Book in World of Tanks is 148% more, than GeForce GT 640M LE.
Full Specs
GeForce GT 640M LE
Maxwell GPU Surface Book
Architecture
Fermi / Kepler
Maxwell
Code name
N13P-LP
Surface Book
Type
Laptop
Laptop
Release date
22 March 2012
1 October 2015
Pipelines
384
384
Core clock speed
954 MHz
Boost Clock
993 MHz
Transistor count
585 million
Manufacturing process technology
28 nm
28 nm
Floating-point performance
384.0 gflops
Memory bus width
128bit
64 Bit
Memory clock speed
1800 - 4000 MHz
5012 MHz
Shared memory
-
-
DirectX
12 API
DirectX 12 (FL 11_0), Shader 5.0
Shader Model
5.1
OpenGL
4.5
OpenCL
1.1
Vulkan
N/A
CUDA
+
+
CUDA cores
Up to 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)
14 Mh/s
Laptop size
medium sized
Optimus
+
+
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