GeForce GT 640 vs Radeon HD 6740G2
If you are going to buy a new graphics card and are choosing between GeForce GT 640 and Radeon HD 6740G2, 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 GT 640 stacks up against Radeon HD 6740G2, check out specs charts below.
Radeon HD 6740G2 is a Laptop Graphics Card
Note: Radeon HD 6740G2 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 Radeon HD 6740G2 here:
Main Specs
GeForce GT 640
Radeon HD 6740G2
Power consumption (TDP)
65 Watt
Interface
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3
Maximum RAM amount
2 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
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GeForce GT 640 is used in Desktops, and Radeon HD 6740G2 - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Radeon HD 6740G2 - with Terascale 2.
GeForce GT 640 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
2−3
0−1
ultra / 1080p
1−2
0−1
QHD / 1440p
0−1
0−1
low / 720p
14−16
10−12
medium / 1080p
5−6
2−3
The average gaming FPS of GeForce GT 640 in Assassin's Creed Odyssey is 66% more, than Radeon HD 6740G2.
high / 1080p
7−8
−
ultra / 1080p
5−6
3−4
QHD / 1440p
0−1
0−1
low / 720p
20−22
12−14
medium / 1080p
7−8
4−5
The average gaming FPS of GeForce GT 640 in Battlefield 5 is 57% more, than Radeon HD 6740G2.
low / 768p
50−55
50−55
high / 1080p
35−40
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 6740G2 in Call of Duty: Warzone is 11% more, than GeForce GT 640.
low / 768p
110−120
110−120
medium / 768p
90−95
85−90
ultra / 1080p
45−50
35−40
QHD / 1440p
24−27
−
4K / 2160p
18−20
10−11
high / 768p
65−70
60−65
The average gaming FPS of GeForce GT 640 in Counter-Strike: Global Offensive is 9% more, than Radeon HD 6740G2.
low / 768p
70−75
70−75
ultra / 1080p
21−24
12−14
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 6% more, than Radeon HD 6740G2.
low / 768p
70−75
70−75
medium / 768p
50−55
40−45
ultra / 1080p
27−30
18−20
The average gaming FPS of GeForce GT 640 in Dota 2 is 15% more, than Radeon HD 6740G2.
high / 1080p
3−4
2−3
ultra / 1080p
3−4
2−3
4K / 2160p
2−3
0−1
low / 720p
14−16
9−10
medium / 1080p
4−5
3−4
The average gaming FPS of GeForce GT 640 in Far Cry 5 is 50% more, than Radeon HD 6740G2.
high / 1080p
10−12
−
ultra / 1080p
5−6
5−6
QHD / 1440p
2−3
1−2
low / 720p
50−55
45−50
medium / 1080p
16−18
7−8
The average gaming FPS of GeForce GT 640 in Fortnite is 26% more, than Radeon HD 6740G2.
high / 1080p
6−7
2−3
QHD / 1440p
4−5
0−1
4K / 2160p
2−3
−
low / 720p
21−24
14−16
medium / 1080p
9−10
5−6
The average gaming FPS of GeForce GT 640 in Forza Horizon 4 is 71% more, than Radeon HD 6740G2.
low / 768p
45−50
40−45
high / 1080p
7−8
3−4
ultra / 1080p
3−4
2−3
QHD / 1440p
0−1
0−1
medium / 720p
40−45
35−40
The average gaming FPS of GeForce GT 640 in Grand Theft Auto V is 19% more, than Radeon HD 6740G2.
high / 1080p
2−3
1−2
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
8−9
2−3
medium / 1080p
4−5
2−3
The average gaming FPS of GeForce GT 640 in Metro Exodus is 150% more, than Radeon HD 6740G2.
low / 768p
80−85
85−90
high / 1080p
−
55−60
ultra / 1080p
70−75
−
The average gaming FPS of Radeon HD 6740G2 in Minecraft is 6% more, than GeForce GT 640.
high / 1080p
−
14−16
ultra / 1080p
12−14
12−14
low / 720p
27−30
24−27
medium / 1080p
14−16
14−16
The average gaming FPS of GeForce GT 640 in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than Radeon HD 6740G2.
high / 1080p
6−7
−
ultra / 1080p
4−5
3−4
QHD / 1440p
0−1
0−1
low / 720p
7−8
4−5
The average gaming FPS of GeForce GT 640 in Red Dead Redemption 2 is 50% more, than Radeon HD 6740G2.
low / 768p
14−16
7−8
medium / 768p
10−11
6−7
high / 1080p
5−6
3−4
ultra / 1080p
4−5
−
4K / 2160p
0−1
0−1
The average gaming FPS of GeForce GT 640 in The Witcher 3: Wild Hunt is 100% more, than Radeon HD 6740G2.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
16−18
12−14
high / 768p
30−35
30−33
The average gaming FPS of GeForce GT 640 in World of Tanks is 2% more, than Radeon HD 6740G2.
Full Specs
GeForce GT 640
Radeon HD 6740G2
Architecture
Kepler
Terascale 2
Code name
GK107
Type
Desktop
Laptop
Release date
5 June 2012
14 June 2011
Pipelines
384
880
Core clock speed
902 MHz
Transistor count
1,270 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
28.86
Floating-point performance
692.7 gflops
Length
145 mm
Memory bus width
128 Bit
Memory clock speed
1782 MHz
Memory bandwidth
28.51 GB/s
Shared memory
-
DirectX
12 (11_0)
DirectX 11, Shader 5.0
Shader Model
5.1
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.126
CUDA
3.0
Bitcoin / BTC (SHA256)
24 Mh/s
Laptop size
medium sized
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