GeForce GT 645M vs Radeon R7 Carrizo
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M 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 645M 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.
GeForce GT 645M and Radeon R7 Carrizo are Laptop Graphics Cards
Note: GeForce GT 645M and Radeon R7 Carrizo 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 645M or Radeon R7 Carrizo here:
Main Specs
GeForce GT 645M
Radeon R7 Carrizo
Power consumption (TDP)
32 Watt
12-35 Watt
Interface
PCIe 3.0 x16
Memory type
DDR3\GDDR5
Maximum RAM amount
2 GB
Display Connectors
No outputs
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GeForce GT 645M has 166% more power consumption, than Radeon R7 Carrizo.
Both cards are used in Laptops.
GeForce GT 645M is build with Kepler architecture, and Radeon R7 Carrizo - with GCN 1.2/2.0.
GeForce GT 645M 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
1−2
2−3
ultra / 1080p
0−1
0−1
QHD / 1440p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
2−3
5−6
The average gaming FPS of Radeon R7 Carrizo in Assassin's Creed Odyssey is 40% more, than GeForce GT 645M.
high / 1080p
−
6−7
ultra / 1080p
3−4
5−6
QHD / 1440p
0−1
0−1
low / 720p
12−14
16−18
medium / 1080p
4−5
7−8
The average gaming FPS of Radeon R7 Carrizo in Battlefield 5 is 42% more, than GeForce GT 645M.
low / 768p
50−55
45−50
high / 1080p
45−50
40−45
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 11% more, than Radeon R7 Carrizo.
low / 768p
110−120
110−120
medium / 768p
85−90
90−95
ultra / 1080p
35−40
40−45
QHD / 1440p
−
24−27
4K / 2160p
10−11
−
high / 768p
60−65
65−70
The average gaming FPS of Radeon R7 Carrizo in Counter-Strike: Global Offensive is 5% more, than GeForce GT 645M.
low / 768p
70−75
70−75
ultra / 1080p
14−16
18−20
medium / 1080p
45−50
40−45
The average gaming FPS of GeForce GT 645M in Cyberpunk 2077 is 2% more, than Radeon R7 Carrizo.
low / 768p
70−75
70−75
medium / 768p
45−50
50−55
ultra / 1080p
18−20
27−30
The average gaming FPS of Radeon R7 Carrizo in Dota 2 is 10% more, than GeForce GT 645M.
high / 1080p
2−3
3−4
ultra / 1080p
2−3
3−4
4K / 2160p
0−1
0−1
low / 720p
10−11
14−16
medium / 1080p
3−4
5−6
The average gaming FPS of Radeon R7 Carrizo in Far Cry 5 is 50% more, than GeForce GT 645M.
high / 1080p
−
10−12
ultra / 1080p
5−6
6−7
QHD / 1440p
1−2
4−5
low / 720p
45−50
55−60
medium / 1080p
8−9
12−14
The average gaming FPS of Radeon R7 Carrizo in Fortnite is 33% more, than GeForce GT 645M.
high / 1080p
3−4
7−8
ultra / 1080p
−
6−7
QHD / 1440p
0−1
0−1
low / 720p
14−16
20−22
medium / 1080p
6−7
10−11
The average gaming FPS of Radeon R7 Carrizo in Forza Horizon 4 is 62% more, than GeForce GT 645M.
low / 768p
40−45
45−50
high / 1080p
3−4
7−8
ultra / 1080p
2−3
3−4
QHD / 1440p
0−1
0−1
medium / 720p
35−40
35−40
The average gaming FPS of Radeon R7 Carrizo in Grand Theft Auto V is 14% more, than GeForce GT 645M.
high / 1080p
1−2
1−2
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
3−4
6−7
medium / 1080p
2−3
3−4
The average gaming FPS of Radeon R7 Carrizo in Metro Exodus is 50% more, than GeForce GT 645M.
low / 768p
85−90
85−90
high / 1080p
55−60
65−70
The average gaming FPS of Radeon R7 Carrizo in Minecraft is 6% more, than GeForce GT 645M.
high / 1080p
14−16
−
ultra / 1080p
12−14
12−14
low / 720p
24−27
27−30
medium / 1080p
14−16
14−16
The average gaming FPS of Radeon R7 Carrizo in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 645M.
ultra / 1080p
3−4
3−4
QHD / 1440p
0−1
0−1
low / 720p
4−5
6−7
The average gaming FPS of Radeon R7 Carrizo in Red Dead Redemption 2 is 25% more, than GeForce GT 645M.
low / 768p
8−9
14−16
medium / 768p
7−8
10−12
high / 1080p
3−4
5−6
ultra / 1080p
3−4
4−5
4K / 2160p
0−1
0−1
The average gaming FPS of Radeon R7 Carrizo in The Witcher 3: Wild Hunt is 80% more, than GeForce GT 645M.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
12−14
14−16
high / 768p
30−33
27−30
GeForce GT 645M and Radeon R7 Carrizo have the same average FPS in World of Tanks.
Full Specs
GeForce GT 645M
Radeon R7 Carrizo
Architecture
Kepler
GCN 1.2/2.0
Code name
N13P-GS
Carrizo
Type
Laptop
Laptop
Release date
22 March 2012
4 June 2015
Pipelines
384
512
Boost Clock
800 MHz
Transistor count
1,270 million
2410 Million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
22.7 billion/sec
Floating-point performance
544.5 gflops
Memory bus width
128bit
64/128 Bit
Memory clock speed
1800 MHz
Shared memory
-
+
DirectX
12 API
DirectX 12 (FL 12_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)
19 Mh/s
Laptop size
medium sized
medium sized
Optimus
+
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