GeForce GTX 660 vs Radeon R9 M385X
When choosing between GeForce GTX 660 and Radeon R9 M385X, 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 R9 M385X.
Radeon R9 M385X is a Laptop Graphics Card
Note: Radeon R9 M385X 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 R9 M385X here:
Main Specs
GeForce GTX 660
Radeon R9 M385X
Power consumption (TDP)
140 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
One 6-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
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Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
Radeon R9 M385X has 2 GB more memory, than GeForce GTX 660.
GeForce GTX 660 is used in Desktops, and Radeon R9 M385X - in Laptops.
GeForce GTX 660 is build with Kepler architecture, and Radeon R9 M385X - with GCN.
Core clock speed of Radeon R9 M385X is 120 MHz higher, than GeForce GTX 660.
GeForce GTX 660 and Radeon R9 M385X are manufactured by 28 nm process technology.
Memory clock speed of Radeon R9 M385X is 1494 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
8−9
ultra / 1080p
12−14
5−6
QHD / 1440p
6−7
0−1
4K / 2160p
5−6
−
low / 720p
40−45
18−20
medium / 1080p
24−27
10−11
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 150% more, than Radeon R9 M385X.
high / 1080p
30−35
14−16
ultra / 1080p
27−30
12−14
QHD / 1440p
10−12
0−1
4K / 2160p
8−9
−
low / 720p
65−70
30−33
medium / 1080p
35−40
14−16
The average gaming FPS of GeForce GTX 660 in Battlefield 5 is 127% more, than Radeon R9 M385X.
low / 768p
50−55
45−50
high / 1080p
−
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 660 in Call of Duty: Warzone is 10% more, than Radeon R9 M385X.
low / 768p
230−240
150−160
medium / 768p
200−210
120−130
ultra / 1080p
120−130
60−65
QHD / 1440p
90−95
35−40
4K / 2160p
50−55
27−30
high / 768p
160−170
90−95
The average gaming FPS of GeForce GTX 660 in Counter-Strike: Global Offensive is 74% more, than Radeon R9 M385X.
low / 768p
60−65
55−60
ultra / 1080p
50−55
21−24
medium / 1080p
55−60
45−50
The average gaming FPS of GeForce GTX 660 in Cyberpunk 2077 is 35% more, than Radeon R9 M385X.
low / 768p
120−130
85−90
medium / 768p
100−110
65−70
ultra / 1080p
80−85
40−45
The average gaming FPS of GeForce GTX 660 in Dota 2 is 60% more, than Radeon R9 M385X.
high / 1080p
24−27
10−11
ultra / 1080p
21−24
9−10
QHD / 1440p
18−20
−
4K / 2160p
8−9
4−5
low / 720p
50−55
21−24
medium / 1080p
27−30
10−11
The average gaming FPS of GeForce GTX 660 in Far Cry 5 is 145% more, than Radeon R9 M385X.
high / 1080p
30−35
16−18
ultra / 1080p
24−27
12−14
QHD / 1440p
16−18
−
low / 720p
120−130
65−70
medium / 1080p
70−75
27−30
The average gaming FPS of GeForce GTX 660 in Fortnite is 103% more, than Radeon R9 M385X.
high / 1080p
30−35
14−16
ultra / 1080p
24−27
12−14
QHD / 1440p
14−16
2−3
4K / 2160p
12−14
−
low / 720p
65−70
30−35
medium / 1080p
35−40
16−18
The average gaming FPS of GeForce GTX 660 in Forza Horizon 4 is 118% more, than Radeon R9 M385X.
low / 768p
100−110
60−65
medium / 768p
90−95
50−55
high / 1080p
40−45
16−18
ultra / 1080p
16−18
7−8
QHD / 1440p
7−8
0−1
The average gaming FPS of GeForce GTX 660 in Grand Theft Auto V is 88% more, than Radeon R9 M385X.
high / 1080p
12−14
5−6
ultra / 1080p
10−11
4−5
QHD / 1440p
10−11
−
4K / 2160p
3−4
1−2
low / 720p
40−45
16−18
medium / 1080p
18−20
7−8
The average gaming FPS of GeForce GTX 660 in Metro Exodus is 142% more, than Radeon R9 M385X.
low / 768p
120−130
95−100
high / 1080p
−
95−100
ultra / 1080p
−
85−90
medium / 1080p
110−120
95−100
The average gaming FPS of GeForce GTX 660 in Minecraft is 23% more, than Radeon R9 M385X.
high / 1080p
−
18−20
ultra / 1080p
14−16
14−16
low / 720p
70−75
35−40
medium / 1080p
18−20
18−20
The average gaming FPS of GeForce GTX 660 in PLAYERUNKNOWN'S BATTLEGROUNDS is 52% more, than Radeon R9 M385X.
high / 1080p
14−16
−
ultra / 1080p
10−11
8−9
QHD / 1440p
1−2
0−1
4K / 2160p
1−2
−
low / 720p
35−40
14−16
medium / 1080p
21−24
12−14
The average gaming FPS of GeForce GTX 660 in Red Dead Redemption 2 is 91% more, than Radeon R9 M385X.
low / 768p
70−75
30−35
medium / 768p
45−50
20−22
high / 1080p
24−27
10−12
ultra / 1080p
14−16
7−8
4K / 2160p
8−9
6−7
The average gaming FPS of GeForce GTX 660 in The Witcher 3: Wild Hunt is 120% more, than Radeon R9 M385X.
low / 768p
90−95
90−95
medium / 768p
60−65
45−50
ultra / 1080p
40−45
21−24
high / 768p
55−60
40−45
The average gaming FPS of GeForce GTX 660 in World of Tanks is 23% more, than Radeon R9 M385X.
Full Specs
GeForce GTX 660
Radeon R9 M385X
Architecture
Kepler
GCN
Code name
GK106
Strato-XT-M3
Type
Desktop
Laptop
Release date
6 September 2012
16 June 2015
Pipelines
960
896
Core clock speed
980 MHz
1100 MHz
Boost Clock
1033 MHz
1100 MHz
Transistor count
2,540 million
2,080 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
78.4 billion/sec
61.60
Floating-point performance
1,981 gflops
1,971 gflops
Length
9.5" (24.1 cm)
Memory bus width
192-bit GDDR5
128 Bit
Memory clock speed
6.0 GB/s
1500 MHz
Memory bandwidth
144.2 GB/s
76.8 GB/s
Shared memory
-
DirectX
12 (11_0)
Shader Model
5.1
6.3
OpenGL
4.3
4.4
OpenCL
1.2
Not Listed
Vulkan
1.1.126
CUDA
+
FreeSync
+
CUDA cores
960
Bus support
PCI Express 3.0
PCIe 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
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
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