GeForce GT 640M vs Radeon HD 6740G2
In this comparison between GeForce GT 640M and Radeon HD 6740G2 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 GT 640M will be the best choice, for others Radeon HD 6740G2 will be their preference. Study the comparison tables below and make your choice.
GeForce GT 640M and Radeon HD 6740G2 are Laptop Graphics Cards
Note: GeForce GT 640M and Radeon HD 6740G2 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 or Radeon HD 6740G2 here:
Main Specs
GeForce GT 640M
Radeon HD 6740G2
Power consumption (TDP)
32 Watt
Interface
PCIe 3.0 x16
Memory type
DDR3\GDDR5
Maximum RAM amount
2 GB
Display Connectors
No outputs
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Both cards are used in Laptops.
GeForce GT 640M is build with Kepler architecture, and Radeon HD 6740G2 - with Terascale 2.
GeForce GT 640M is manufactured by 28 nm process technology, and Radeon HD 6740G2 - by 40 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
0−1
0−1
ultra / 1080p
0−1
0−1
QHD / 1440p
0−1
0−1
low / 720p
10−12
10−12
medium / 1080p
2−3
2−3
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Assassin's Creed Odyssey.
ultra / 1080p
3−4
3−4
QHD / 1440p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
4−5
4−5
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Battlefield 5.
low / 768p
50−55
50−55
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
110−120
medium / 768p
85−90
85−90
ultra / 1080p
35−40
35−40
4K / 2160p
10−11
10−11
high / 768p
55−60
60−65
The average gaming FPS of Radeon HD 6740G2 in Counter-Strike: Global Offensive is 1% more, than GeForce GT 640M.
low / 768p
70−75
70−75
ultra / 1080p
12−14
12−14
medium / 1080p
45−50
45−50
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
70−75
medium / 768p
40−45
40−45
ultra / 1080p
18−20
18−20
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Dota 2.
high / 1080p
2−3
2−3
ultra / 1080p
2−3
2−3
4K / 2160p
0−1
0−1
low / 720p
9−10
9−10
medium / 1080p
3−4
3−4
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Far Cry 5.
ultra / 1080p
5−6
5−6
QHD / 1440p
1−2
1−2
low / 720p
45−50
45−50
medium / 1080p
7−8
7−8
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Fortnite.
high / 1080p
2−3
2−3
QHD / 1440p
0−1
0−1
low / 720p
14−16
14−16
medium / 1080p
5−6
5−6
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Forza Horizon 4.
low / 768p
40−45
40−45
high / 1080p
3−4
3−4
ultra / 1080p
2−3
2−3
QHD / 1440p
0−1
0−1
medium / 720p
30−35
35−40
The average gaming FPS of Radeon HD 6740G2 in Grand Theft Auto V is 5% more, than GeForce GT 640M.
high / 1080p
1−2
1−2
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
2−3
2−3
medium / 1080p
2−3
2−3
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Metro Exodus.
low / 768p
85−90
85−90
high / 1080p
55−60
55−60
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in Minecraft.
high / 1080p
14−16
14−16
ultra / 1080p
12−14
12−14
low / 720p
24−27
24−27
medium / 1080p
14−16
14−16
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
ultra / 1080p
3−4
3−4
QHD / 1440p
0−1
0−1
low / 720p
3−4
4−5
The average gaming FPS of Radeon HD 6740G2 in Red Dead Redemption 2 is 33% more, than GeForce GT 640M.
low / 768p
7−8
7−8
medium / 768p
6−7
6−7
high / 1080p
3−4
3−4
4K / 2160p
0−1
0−1
GeForce GT 640M and Radeon HD 6740G2 have the same average FPS in The Witcher 3: Wild Hunt.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
12−14
12−14
high / 768p
27−30
30−33
The average gaming FPS of Radeon HD 6740G2 in World of Tanks is 2% more, than GeForce GT 640M.
Full Specs
GeForce GT 640M
Radeon HD 6740G2
Architecture
Kepler
Terascale 2
Code name
N13P-GS
Type
Laptop
Laptop
Release date
22 March 2012
14 June 2011
Pipelines
384
880
Boost Clock
645 MHz
Transistor count
1,270 million
Manufacturing process technology
28 nm
40 nm
Floating-point performance
480.0 gflops
Memory bus width
128bit
Memory clock speed
1800 - 4000 MHz
Shared memory
-
-
DirectX
12 API
DirectX 11, Shader 5.0
Shader Model
5.1
OpenGL
4.5
OpenCL
1.1
Vulkan
1.1.126
CUDA
+
CUDA cores
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)
18 Mh/s
Laptop size
medium sized
medium sized
Optimus
+
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