GeForce GT 640 vs Radeon R7 Carrizo
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640 and Radeon R7 Carrizo. 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 Radeon R7 Carrizo. 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.
Radeon R7 Carrizo is a Laptop Graphics Card
Note: Radeon R7 Carrizo 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 R7 Carrizo here:
Main Specs
GeForce GT 640
Radeon R7 Carrizo
Power consumption (TDP)
65 Watt
12-35 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 has 441% more power consumption, than Radeon R7 Carrizo.
GeForce GT 640 is used in Desktops, and Radeon R7 Carrizo - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Radeon R7 Carrizo - with GCN 1.2/2.0.
GeForce GT 640 and Radeon R7 Carrizo 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
2−3
ultra / 1080p
1−2
0−1
QHD / 1440p
0−1
0−1
low / 720p
14−16
12−14
medium / 1080p
5−6
5−6
GeForce GT 640 and Radeon R7 Carrizo have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
7−8
6−7
ultra / 1080p
5−6
5−6
QHD / 1440p
0−1
0−1
low / 720p
20−22
16−18
medium / 1080p
7−8
7−8
The average gaming FPS of GeForce GT 640 in Battlefield 5 is 11% more, than Radeon R7 Carrizo.
low / 768p
50−55
45−50
high / 1080p
35−40
40−45
QHD / 1440p
0−1
0−1
GeForce GT 640 and Radeon R7 Carrizo have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
110−120
medium / 768p
90−95
90−95
ultra / 1080p
45−50
40−45
QHD / 1440p
24−27
24−27
4K / 2160p
18−20
−
high / 768p
65−70
65−70
The average gaming FPS of GeForce GT 640 in Counter-Strike: Global Offensive is 1% more, than Radeon R7 Carrizo.
low / 768p
70−75
70−75
ultra / 1080p
21−24
18−20
medium / 1080p
45−50
40−45
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 6% more, than Radeon R7 Carrizo.
low / 768p
70−75
70−75
medium / 768p
50−55
50−55
ultra / 1080p
27−30
27−30
GeForce GT 640 and Radeon R7 Carrizo have the same average FPS in Dota 2.
high / 1080p
3−4
3−4
ultra / 1080p
3−4
3−4
4K / 2160p
2−3
0−1
low / 720p
14−16
14−16
medium / 1080p
4−5
5−6
GeForce GT 640 and Radeon R7 Carrizo have the same average FPS in Far Cry 5.
high / 1080p
10−12
10−12
ultra / 1080p
5−6
6−7
QHD / 1440p
2−3
4−5
low / 720p
50−55
55−60
medium / 1080p
16−18
12−14
The average gaming FPS of Radeon R7 Carrizo in Fortnite is 5% more, than GeForce GT 640.
high / 1080p
6−7
7−8
ultra / 1080p
−
6−7
QHD / 1440p
4−5
0−1
4K / 2160p
2−3
−
low / 720p
21−24
20−22
medium / 1080p
9−10
10−11
The average gaming FPS of Radeon R7 Carrizo in Forza Horizon 4 is 8% more, than GeForce GT 640.
low / 768p
45−50
45−50
high / 1080p
7−8
7−8
ultra / 1080p
3−4
3−4
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 4% more, than Radeon R7 Carrizo.
high / 1080p
2−3
1−2
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
8−9
6−7
medium / 1080p
4−5
3−4
The average gaming FPS of GeForce GT 640 in Metro Exodus is 66% more, than Radeon R7 Carrizo.
low / 768p
80−85
85−90
high / 1080p
−
65−70
ultra / 1080p
70−75
−
The average gaming FPS of Radeon R7 Carrizo in Minecraft is 6% more, than GeForce GT 640.
ultra / 1080p
12−14
12−14
low / 720p
27−30
27−30
medium / 1080p
14−16
14−16
GeForce GT 640 and Radeon R7 Carrizo have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
high / 1080p
6−7
−
ultra / 1080p
4−5
3−4
QHD / 1440p
0−1
0−1
low / 720p
7−8
6−7
The average gaming FPS of GeForce GT 640 in Red Dead Redemption 2 is 20% more, than Radeon R7 Carrizo.
low / 768p
14−16
14−16
medium / 768p
10−11
10−12
high / 1080p
5−6
5−6
ultra / 1080p
4−5
4−5
4K / 2160p
0−1
0−1
The average gaming FPS of Radeon R7 Carrizo in The Witcher 3: Wild Hunt is 12% more, than GeForce GT 640.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
16−18
14−16
high / 768p
30−35
27−30
The average gaming FPS of GeForce GT 640 in World of Tanks is 2% more, than Radeon R7 Carrizo.
Full Specs
GeForce GT 640
Radeon R7 Carrizo
Architecture
Kepler
GCN 1.2/2.0
Code name
GK107
Carrizo
Type
Desktop
Laptop
Release date
5 June 2012
4 June 2015
Pipelines
384
512
Core clock speed
902 MHz
Boost Clock
800 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 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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