GeForce GT 645M vs Radeon HD 6850M
When comparing GeForce GT 645M and Radeon HD 6850M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 645M and Radeon HD 6850M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce GT 645M and Radeon HD 6850M are Laptop Graphics Cards
Note: GeForce GT 645M and Radeon HD 6850M 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 HD 6850M here:
Main Specs
GeForce GT 645M
Radeon HD 6850M
Power consumption (TDP)
32 Watt
50 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Memory type
DDR3\GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
1 GB
Display Connectors
No outputs
No outputs
Check Price
Check Price
Radeon HD 6850M has 56% more power consumption, than GeForce GT 645M.
GeForce GT 645M is connected by PCIe 3.0 x16, and Radeon HD 6850M uses PCIe 2.0 x16 interface.
GeForce GT 645M has 1 GB more memory, than Radeon HD 6850M.
Both cards are used in Laptops.
GeForce GT 645M is build with Kepler architecture, and Radeon HD 6850M - with Terascale 2.
GeForce GT 645M is manufactured by 28 nm process technology, and Radeon HD 6850M - by 40 nm process technology.
Memory clock speed of GeForce GT 645M is 1000 MHz higher, than Radeon HD 6850M.
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
3−4
The average gaming FPS of Radeon HD 6850M in Assassin's Creed Odyssey is 20% more, than GeForce GT 645M.
ultra / 1080p
3−4
4−5
QHD / 1440p
0−1
0−1
low / 720p
12−14
14−16
medium / 1080p
4−5
6−7
The average gaming FPS of Radeon HD 6850M in Battlefield 5 is 14% more, than GeForce GT 645M.
low / 768p
50−55
50−55
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce GT 645M and Radeon HD 6850M have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
120−130
medium / 768p
85−90
95−100
ultra / 1080p
35−40
40−45
4K / 2160p
10−11
10−11
high / 768p
60−65
65−70
The average gaming FPS of Radeon HD 6850M in Counter-Strike: Global Offensive is 9% more, than GeForce GT 645M.
low / 768p
70−75
70−75
ultra / 1080p
14−16
16−18
medium / 1080p
45−50
45−50
GeForce GT 645M and Radeon HD 6850M have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
75−80
medium / 768p
45−50
45−50
ultra / 1080p
18−20
21−24
The average gaming FPS of Radeon HD 6850M in Dota 2 is 6% more, than GeForce GT 645M.
high / 1080p
2−3
3−4
ultra / 1080p
2−3
3−4
4K / 2160p
0−1
1−2
low / 720p
10−11
12−14
medium / 1080p
3−4
4−5
The average gaming FPS of Radeon HD 6850M 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
2−3
low / 720p
45−50
50−55
medium / 1080p
8−9
10−12
The average gaming FPS of Radeon HD 6850M in Fortnite is 20% more, than GeForce GT 645M.
high / 1080p
3−4
4−5
QHD / 1440p
0−1
0−1
low / 720p
14−16
18−20
medium / 1080p
6−7
7−8
The average gaming FPS of Radeon HD 6850M in Forza Horizon 4 is 25% more, than GeForce GT 645M.
low / 768p
40−45
45−50
high / 1080p
3−4
5−6
ultra / 1080p
2−3
3−4
QHD / 1440p
0−1
0−1
medium / 720p
35−40
35−40
The average gaming FPS of Radeon HD 6850M in Grand Theft Auto V is 9% 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
5−6
medium / 1080p
2−3
3−4
The average gaming FPS of Radeon HD 6850M in Metro Exodus is 50% more, than GeForce GT 645M.
low / 768p
85−90
90−95
high / 1080p
55−60
60−65
The average gaming FPS of Radeon HD 6850M in Minecraft is 6% more, than GeForce GT 645M.
high / 1080p
14−16
14−16
ultra / 1080p
12−14
12−14
low / 720p
24−27
27−30
medium / 1080p
14−16
14−16
GeForce GT 645M and Radeon HD 6850M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
ultra / 1080p
3−4
3−4
QHD / 1440p
0−1
0−1
low / 720p
4−5
6−7
The average gaming FPS of Radeon HD 6850M in Red Dead Redemption 2 is 25% more, than GeForce GT 645M.
low / 768p
8−9
10−12
medium / 768p
7−8
8−9
high / 1080p
3−4
4−5
ultra / 1080p
3−4
3−4
4K / 2160p
0−1
0−1
The average gaming FPS of Radeon HD 6850M in The Witcher 3: Wild Hunt is 20% more, than GeForce GT 645M.
low / 768p
70−75
75−80
medium / 768p
35−40
40−45
ultra / 1080p
12−14
14−16
high / 768p
30−33
30−35
The average gaming FPS of Radeon HD 6850M in World of Tanks is 7% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
Radeon HD 6850M
Architecture
Kepler
Terascale 2
Code name
N13P-GS
Granville Pro/LP
Type
Laptop
Laptop
Release date
22 March 2012
6 January 2011
Pipelines
384
800
Core clock speed
575 / 675 MHz
Transistor count
1,270 million
1,040 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
22.7 billion/sec
27.00
Floating-point performance
544.5 gflops
1,080.0 gflops
Memory bus width
128bit
128 Bit
Memory clock speed
1800 MHz
800 MHz
Memory bandwidth
25.6 GB/s
Shared memory
-
-
DirectX
12 API
11.2 (11_0)
Shader Model
5.1
5.0
OpenGL
4.5
4.4
OpenCL
1.1
1.2
Vulkan
1.1.126
N/A
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
large
Optimus
+
Check Price
Check Price
