GeForce GT 640 vs Radeon R6 Kaveri
When choosing between GeForce GT 640 and Radeon R6 Kaveri, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GT 640 and Radeon R6 Kaveri.
Radeon R6 Kaveri is a Laptop Graphics Card
Note: Radeon R6 Kaveri 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 R6 Kaveri here:
Main Specs
GeForce GT 640
Radeon R6 Kaveri
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 R6 Kaveri - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Radeon R6 Kaveri - with GCN 1.1.
Core clock speed of GeForce GT 640 is 369 MHz higher, than Radeon R6 Kaveri.
GeForce GT 640 and Radeon R6 Kaveri are manufactured by 28 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
−
QHD / 1440p
0−1
0−1
low / 720p
14−16
1−2
medium / 1080p
5−6
0−1
The average gaming FPS of GeForce GT 640 in Assassin's Creed Odyssey is 1400% more, than Radeon R6 Kaveri.
high / 1080p
7−8
−
ultra / 1080p
5−6
−
QHD / 1440p
0−1
0−1
low / 720p
20−22
0−1
medium / 1080p
7−8
−
low / 768p
50−55
50−55
high / 1080p
35−40
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon R6 Kaveri in Call of Duty: Warzone is 11% more, than GeForce GT 640.
low / 768p
110−120
60−65
medium / 768p
90−95
27−30
ultra / 1080p
45−50
7−8
QHD / 1440p
24−27
−
4K / 2160p
18−20
−
high / 768p
65−70
16−18
The average gaming FPS of GeForce GT 640 in Counter-Strike: Global Offensive is 185% more, than Radeon R6 Kaveri.
low / 768p
70−75
70−75
ultra / 1080p
21−24
0−1
medium / 1080p
45−50
45−50
GeForce GT 640 and Radeon R6 Kaveri have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
45−50
medium / 768p
50−55
10−11
ultra / 1080p
27−30
0−1
The average gaming FPS of GeForce GT 640 in Dota 2 is 113% more, than Radeon R6 Kaveri.
high / 1080p
3−4
−
ultra / 1080p
3−4
−
4K / 2160p
2−3
−
low / 720p
14−16
0−1
medium / 1080p
4−5
−
high / 1080p
10−12
−
ultra / 1080p
5−6
−
QHD / 1440p
2−3
−
low / 720p
50−55
21−24
medium / 1080p
16−18
0−1
The average gaming FPS of GeForce GT 640 in Fortnite is 136% more, than Radeon R6 Kaveri.
high / 1080p
6−7
0−1
QHD / 1440p
4−5
0−1
4K / 2160p
2−3
−
low / 720p
21−24
0−1
medium / 1080p
9−10
0−1
low / 768p
45−50
18−20
high / 1080p
7−8
0−1
ultra / 1080p
3−4
−
QHD / 1440p
0−1
0−1
medium / 720p
40−45
12−14
The average gaming FPS of GeForce GT 640 in Grand Theft Auto V is 181% more, than Radeon R6 Kaveri.
high / 1080p
2−3
−
ultra / 1080p
0−1
−
4K / 2160p
0−1
−
low / 720p
8−9
0−1
medium / 1080p
4−5
−
low / 768p
80−85
75−80
high / 1080p
−
27−30
ultra / 1080p
70−75
−
The average gaming FPS of GeForce GT 640 in Minecraft is 6% more, than Radeon R6 Kaveri.
ultra / 1080p
12−14
−
low / 720p
27−30
8−9
medium / 1080p
14−16
−
The average gaming FPS of GeForce GT 640 in PLAYERUNKNOWN'S BATTLEGROUNDS is 250% more, than Radeon R6 Kaveri.
high / 1080p
6−7
−
ultra / 1080p
4−5
−
QHD / 1440p
0−1
−
low / 720p
7−8
0−1
low / 768p
14−16
0−1
medium / 768p
10−11
−
high / 1080p
5−6
−
ultra / 1080p
4−5
−
4K / 2160p
0−1
−
low / 768p
70−75
45−50
medium / 768p
35−40
14−16
ultra / 1080p
16−18
0−1
high / 768p
30−35
12−14
The average gaming FPS of GeForce GT 640 in World of Tanks is 88% more, than Radeon R6 Kaveri.
Full Specs
GeForce GT 640
Radeon R6 Kaveri
Architecture
Kepler
GCN 1.1
Code name
GK107
Kaveri
Type
Desktop
Laptop
Release date
5 June 2012
4 June 2014
Pipelines
384
384
Core clock speed
902 MHz
533 MHz
Boost Clock
654 MHz
Transistor count
1,270 million
2410 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
64/128 Bit
Memory clock speed
1782 MHz
Memory bandwidth
28.51 GB/s
Shared memory
+
DirectX
12 (11_0)
DirectX 12 (FL 12_0), 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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