GeForce GTX 660 vs Radeon HD 6850M
When choosing between GeForce GTX 660 and Radeon HD 6850M, 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 GTX 660 and Radeon HD 6850M.
Radeon HD 6850M is a Laptop Graphics Card
Note: Radeon HD 6850M 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 6850M here:
Main Specs
GeForce GTX 660
Radeon HD 6850M
Power consumption (TDP)
140 Watt
50 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
One 6-pin
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
1 GB
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
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GeForce GTX 660 has 180% more power consumption, than Radeon HD 6850M.
GeForce GTX 660 is connected by PCIe 3.0 x16, and Radeon HD 6850M uses PCIe 2.0 x16 interface.
GeForce GTX 660 has 1 GB more memory, than Radeon HD 6850M.
GeForce GTX 660 is used in Desktops, and Radeon HD 6850M - in Laptops.
GeForce GTX 660 is build with Kepler architecture, and Radeon HD 6850M - with Terascale 2.
Core clock speed of GeForce GTX 660 is 405 MHz higher, than Radeon HD 6850M.
GeForce GTX 660 is manufactured by 28 nm process technology, and Radeon HD 6850M - by 40 nm process technology.
Memory clock speed of Radeon HD 6850M is 794 MHz higher, than GeForce GTX 660.
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
20−22
2−3
ultra / 1080p
12−14
0−1
QHD / 1440p
6−7
0−1
4K / 2160p
5−6
−
low / 720p
40−45
12−14
medium / 1080p
24−27
3−4
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 383% more, than Radeon HD 6850M.
high / 1080p
30−35
−
ultra / 1080p
27−30
4−5
QHD / 1440p
10−12
0−1
4K / 2160p
8−9
−
low / 720p
65−70
14−16
medium / 1080p
35−40
6−7
The average gaming FPS of GeForce GTX 660 in Battlefield 5 is 450% more, than Radeon HD 6850M.
low / 768p
50−55
50−55
high / 1080p
−
45−50
QHD / 1440p
0−1
0−1
GeForce GTX 660 and Radeon HD 6850M have the same average FPS in Call of Duty: Warzone.
low / 768p
230−240
120−130
medium / 768p
200−210
95−100
ultra / 1080p
120−130
40−45
QHD / 1440p
90−95
−
4K / 2160p
50−55
10−11
high / 768p
160−170
65−70
The average gaming FPS of GeForce GTX 660 in Counter-Strike: Global Offensive is 129% more, than Radeon HD 6850M.
low / 768p
60−65
70−75
ultra / 1080p
50−55
16−18
medium / 1080p
55−60
45−50
The average gaming FPS of GeForce GTX 660 in Cyberpunk 2077 is 26% more, than Radeon HD 6850M.
low / 768p
120−130
75−80
medium / 768p
100−110
45−50
ultra / 1080p
80−85
21−24
The average gaming FPS of GeForce GTX 660 in Dota 2 is 112% more, than Radeon HD 6850M.
high / 1080p
24−27
3−4
ultra / 1080p
21−24
3−4
QHD / 1440p
18−20
−
4K / 2160p
8−9
1−2
low / 720p
50−55
12−14
medium / 1080p
27−30
4−5
The average gaming FPS of GeForce GTX 660 in Far Cry 5 is 440% more, than Radeon HD 6850M.
high / 1080p
30−35
10−12
ultra / 1080p
24−27
6−7
QHD / 1440p
16−18
2−3
low / 720p
120−130
50−55
medium / 1080p
70−75
10−12
The average gaming FPS of GeForce GTX 660 in Fortnite is 237% more, than Radeon HD 6850M.
high / 1080p
30−35
4−5
ultra / 1080p
24−27
−
QHD / 1440p
14−16
0−1
4K / 2160p
12−14
−
low / 720p
65−70
18−20
medium / 1080p
35−40
7−8
The average gaming FPS of GeForce GTX 660 in Forza Horizon 4 is 350% more, than Radeon HD 6850M.
low / 768p
100−110
45−50
medium / 768p
90−95
−
high / 1080p
40−45
5−6
ultra / 1080p
16−18
3−4
QHD / 1440p
7−8
0−1
medium / 720p
−
35−40
The average gaming FPS of GeForce GTX 660 in Grand Theft Auto V is 200% more, than Radeon HD 6850M.
high / 1080p
12−14
1−2
ultra / 1080p
10−11
0−1
QHD / 1440p
10−11
−
4K / 2160p
3−4
0−1
low / 720p
40−45
5−6
medium / 1080p
18−20
3−4
The average gaming FPS of GeForce GTX 660 in Metro Exodus is 700% more, than Radeon HD 6850M.
low / 768p
120−130
90−95
high / 1080p
−
60−65
medium / 1080p
110−120
−
The average gaming FPS of GeForce GTX 660 in Minecraft is 35% more, than Radeon HD 6850M.
high / 1080p
−
14−16
ultra / 1080p
14−16
12−14
low / 720p
70−75
27−30
medium / 1080p
18−20
14−16
The average gaming FPS of GeForce GTX 660 in PLAYERUNKNOWN'S BATTLEGROUNDS is 94% more, than Radeon HD 6850M.
high / 1080p
14−16
−
ultra / 1080p
10−11
3−4
QHD / 1440p
1−2
0−1
4K / 2160p
1−2
−
low / 720p
35−40
6−7
medium / 1080p
21−24
−
The average gaming FPS of GeForce GTX 660 in Red Dead Redemption 2 is 380% more, than Radeon HD 6850M.
low / 768p
70−75
10−12
medium / 768p
45−50
8−9
high / 1080p
24−27
4−5
ultra / 1080p
14−16
3−4
4K / 2160p
8−9
0−1
The average gaming FPS of GeForce GTX 660 in The Witcher 3: Wild Hunt is 566% more, than Radeon HD 6850M.
low / 768p
90−95
75−80
medium / 768p
60−65
40−45
ultra / 1080p
40−45
14−16
high / 768p
55−60
30−35
The average gaming FPS of GeForce GTX 660 in World of Tanks is 53% more, than Radeon HD 6850M.
Full Specs
GeForce GTX 660
Radeon HD 6850M
Architecture
Kepler
Terascale 2
Code name
GK106
Granville Pro/LP
Type
Desktop
Laptop
Release date
6 September 2012
6 January 2011
Pipelines
960
800
Core clock speed
980 MHz
575 / 675 MHz
Boost Clock
1033 MHz
Transistor count
2,540 million
1,040 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
78.4 billion/sec
27.00
Floating-point performance
1,981 gflops
1,080.0 gflops
Length
9.5" (24.1 cm)
Memory bus width
192-bit GDDR5
128 Bit
Memory clock speed
6.0 GB/s
800 MHz
Memory bandwidth
144.2 GB/s
25.6 GB/s
Shared memory
-
DirectX
12 (11_0)
11.2 (11_0)
Shader Model
5.1
5.0
OpenGL
4.3
4.4
OpenCL
1.2
1.2
Vulkan
1.1.126
N/A
CUDA
+
CUDA cores
960
Bus support
PCI Express 3.0
Height
4.376" (11.1 cm)
SLI options
+
Multi monitor support
4 displays
HDMI
+
HDCP
+
Maximum VGA resolution
2048x1536
Audio input for HDMI
Internal
3D Blu-Ray
+
3D Gaming
+
3D Vision
+
Bitcoin / BTC (SHA256)
66 Mh/s
Laptop size
large
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