GeForce GTX 660M vs Radeon HD 6850
If you are going to buy a new graphics card and are choosing between GeForce GTX 660M and Radeon HD 6850, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 660M stacks up against Radeon HD 6850, check out specs charts below.
GeForce GTX 660M is a Laptop Graphics Card
Note: GeForce GTX 660M 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 GeForce GTX 660M here:
Main Specs
GeForce GTX 660M
Radeon HD 6850
Power consumption (TDP)
50 Watt
127 Watt
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Display Connectors
No outputs
2x DVI, 1x HDMI, 2x mini-DisplayPort
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Radeon HD 6850 has 154% more power consumption, than GeForce GTX 660M.
GeForce GTX 660M is connected by MXM-B (3.0), and Radeon HD 6850 uses PCIe 2.0 x16 interface.
GeForce GTX 660M has 1 GB more memory, than Radeon HD 6850.
GeForce GTX 660M is used in Laptops, and Radeon HD 6850 - in Desktops.
GeForce GTX 660M is build with Kepler architecture, and Radeon HD 6850 - with TeraScale 2.
GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon HD 6850 - by 40 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
6−7
9−10
ultra / 1080p
4−5
5−6
QHD / 1440p
0−1
0−1
low / 720p
16−18
21−24
medium / 1080p
8−9
12−14
The average gaming FPS of Radeon HD 6850 in Assassin's Creed Odyssey is 33% more, than GeForce GTX 660M.
high / 1080p
12−14
16−18
ultra / 1080p
10−11
14−16
QHD / 1440p
0−1
0−1
low / 720p
24−27
35−40
medium / 1080p
12−14
16−18
The average gaming FPS of Radeon HD 6850 in Battlefield 5 is 40% more, than GeForce GTX 660M.
low / 768p
45−50
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
GeForce GTX 660M and Radeon HD 6850 have the same average FPS in Call of Duty: Warzone.
low / 768p
130−140
160−170
medium / 768p
110−120
130−140
ultra / 1080p
50−55
70−75
QHD / 1440p
27−30
40−45
4K / 2160p
27−30
30−33
high / 768p
80−85
100−110
The average gaming FPS of Radeon HD 6850 in Counter-Strike: Global Offensive is 24% more, than GeForce GTX 660M.
low / 768p
55−60
55−60
ultra / 1080p
18−20
27−30
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6850 in Cyberpunk 2077 is 7% more, than GeForce GTX 660M.
low / 768p
80−85
90−95
medium / 768p
55−60
70−75
ultra / 1080p
30−35
45−50
The average gaming FPS of Radeon HD 6850 in Dota 2 is 22% more, than GeForce GTX 660M.
high / 1080p
8−9
10−12
ultra / 1080p
7−8
10−11
4K / 2160p
3−4
4−5
low / 720p
18−20
24−27
medium / 1080p
8−9
12−14
The average gaming FPS of Radeon HD 6850 in Far Cry 5 is 33% more, than GeForce GTX 660M.
high / 1080p
14−16
18−20
ultra / 1080p
10−11
12−14
low / 720p
60−65
75−80
medium / 1080p
21−24
30−35
The average gaming FPS of Radeon HD 6850 in Fortnite is 29% more, than GeForce GTX 660M.
high / 1080p
12−14
16−18
ultra / 1080p
10−12
14−16
QHD / 1440p
1−2
4−5
low / 720p
24−27
35−40
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon HD 6850 in Forza Horizon 4 is 38% more, than GeForce GTX 660M.
low / 768p
50−55
65−70
medium / 768p
45−50
55−60
high / 1080p
12−14
18−20
ultra / 1080p
6−7
8−9
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 6850 in Grand Theft Auto V is 31% more, than GeForce GTX 660M.
high / 1080p
4−5
6−7
ultra / 1080p
3−4
4−5
4K / 2160p
0−1
1−2
low / 720p
12−14
18−20
medium / 1080p
6−7
8−9
The average gaming FPS of Radeon HD 6850 in Metro Exodus is 50% more, than GeForce GTX 660M.
low / 768p
95−100
100−110
high / 1080p
90−95
−
ultra / 1080p
80−85
90−95
medium / 1080p
90−95
95−100
The average gaming FPS of Radeon HD 6850 in Minecraft is 8% more, than GeForce GTX 660M.
high / 1080p
16−18
18−20
ultra / 1080p
14−16
14−16
low / 720p
30−35
40−45
medium / 1080p
18−20
20−22
The average gaming FPS of Radeon HD 6850 in PLAYERUNKNOWN'S BATTLEGROUNDS is 20% more, than GeForce GTX 660M.
high / 1080p
−
12−14
ultra / 1080p
7−8
8−9
QHD / 1440p
0−1
0−1
low / 720p
12−14
18−20
medium / 1080p
10−12
12−14
The average gaming FPS of Radeon HD 6850 in Red Dead Redemption 2 is 30% more, than GeForce GTX 660M.
low / 768p
24−27
35−40
medium / 768p
16−18
21−24
high / 1080p
9−10
12−14
ultra / 1080p
6−7
8−9
4K / 2160p
6−7
7−8
The average gaming FPS of Radeon HD 6850 in The Witcher 3: Wild Hunt is 30% more, than GeForce GTX 660M.
low / 768p
85−90
90−95
medium / 768p
45−50
50−55
ultra / 1080p
18−20
24−27
high / 768p
35−40
40−45
The average gaming FPS of Radeon HD 6850 in World of Tanks is 12% more, than GeForce GTX 660M.
Full Specs
GeForce GTX 660M
Radeon HD 6850
Architecture
Kepler
TeraScale 2
Code name
N13E-GE
Barts
Type
Laptop
Desktop
Release date
22 March 2012
21 October 2010
Pipelines
384
960
Core clock speed
835 MHz
Boost Clock
950 MHz
Transistor count
1,270 million
1,700 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
30.4 billion/sec
37.20
Floating-point performance
729.6 gflops
1,488.0 gflops
Length
198 mm
Memory bus width
128bit
256 Bit
Memory clock speed
2000 MHz
Memory bandwidth
64.0 GB/s
128.0 GB/s
Shared memory
-
DirectX
12 API
Shader Model
5.1
5.0
OpenGL
4.5
4.4
OpenCL
1.1
1.2
Vulkan
1.1.126
CUDA
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
AGP
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
36 Mh/s
139 Mh/s
Laptop size
large
Optimus
+
Eyefinity
+
Design
reference
CrossFire
+
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