GeForce GTX 660M vs Radeon R9 M275
Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660M and Radeon R9 M275. 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 GTX 660M and Radeon R9 M275. 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 GTX 660M and Radeon R9 M275 are Laptop Graphics Cards
Note: GeForce GTX 660M and Radeon R9 M275 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 GTX 660M or Radeon R9 M275 here:
Main Specs
GeForce GTX 660M
Radeon R9 M275
Power consumption (TDP)
50 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x16
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
No outputs
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GeForce GTX 660M is connected by MXM-B (3.0), and Radeon R9 M275 uses PCIe 3.0 x16 interface.
Radeon R9 M275 has 2 GB more memory, than GeForce GTX 660M.
Both cards are used in Laptops.
GeForce GTX 660M is build with Kepler architecture, and Radeon R9 M275 - with GCN.
Core clock speed of Radeon R9 M275 is 90 MHz higher, than GeForce GTX 660M.
GeForce GTX 660M and Radeon R9 M275 are manufactured by 28 nm process technology.
Memory clock speed of Radeon R9 M275 is 2500 MHz higher, than GeForce GTX 660M.
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
0−1
ultra / 1080p
4−5
−
QHD / 1440p
0−1
0−1
low / 720p
16−18
12−14
medium / 1080p
8−9
3−4
The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 50% more, than Radeon R9 M275.
high / 1080p
12−14
5−6
ultra / 1080p
10−11
4−5
QHD / 1440p
0−1
0−1
low / 720p
24−27
16−18
medium / 1080p
12−14
5−6
The average gaming FPS of GeForce GTX 660M in Battlefield 5 is 87% more, than Radeon R9 M275.
low / 768p
45−50
50−55
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
medium / 1080p
−
50−55
The average gaming FPS of Radeon R9 M275 in Call of Duty: Warzone is 6% more, than GeForce GTX 660M.
low / 768p
130−140
110−120
medium / 768p
110−120
90−95
ultra / 1080p
50−55
40−45
QHD / 1440p
27−30
24−27
4K / 2160p
27−30
18−20
high / 768p
80−85
65−70
The average gaming FPS of GeForce GTX 660M in Counter-Strike: Global Offensive is 21% more, than Radeon R9 M275.
low / 768p
55−60
60−65
ultra / 1080p
18−20
18−20
medium / 1080p
45−50
50−55
The average gaming FPS of Radeon R9 M275 in Cyberpunk 2077 is 7% more, than GeForce GTX 660M.
low / 768p
80−85
70−75
medium / 768p
55−60
50−55
ultra / 1080p
30−35
24−27
The average gaming FPS of GeForce GTX 660M in Dota 2 is 14% more, than Radeon R9 M275.
high / 1080p
8−9
1−2
ultra / 1080p
7−8
−
4K / 2160p
3−4
0−1
low / 720p
18−20
10−12
medium / 1080p
8−9
3−4
The average gaming FPS of GeForce GTX 660M in Far Cry 5 is 140% more, than Radeon R9 M275.
high / 1080p
14−16
9−10
ultra / 1080p
10−11
5−6
QHD / 1440p
−
1−2
low / 720p
60−65
50−55
medium / 1080p
21−24
12−14
The average gaming FPS of GeForce GTX 660M in Fortnite is 35% more, than Radeon R9 M275.
high / 1080p
12−14
6−7
ultra / 1080p
10−12
4−5
QHD / 1440p
1−2
0−1
low / 720p
24−27
18−20
medium / 1080p
14−16
7−8
The average gaming FPS of GeForce GTX 660M in Forza Horizon 4 is 77% more, than Radeon R9 M275.
low / 768p
50−55
45−50
medium / 768p
45−50
−
high / 1080p
12−14
7−8
ultra / 1080p
6−7
4−5
QHD / 1440p
0−1
0−1
medium / 720p
−
35−40
The average gaming FPS of GeForce GTX 660M in Grand Theft Auto V is 26% more, than Radeon R9 M275.
high / 1080p
4−5
3−4
ultra / 1080p
3−4
1−2
4K / 2160p
0−1
0−1
low / 720p
12−14
7−8
medium / 1080p
6−7
4−5
The average gaming FPS of GeForce GTX 660M in Metro Exodus is 50% more, than Radeon R9 M275.
low / 768p
95−100
85−90
high / 1080p
90−95
70−75
ultra / 1080p
80−85
−
medium / 1080p
90−95
−
The average gaming FPS of GeForce GTX 660M in Minecraft is 18% more, than Radeon R9 M275.
high / 1080p
16−18
14−16
ultra / 1080p
14−16
12−14
low / 720p
30−35
24−27
medium / 1080p
18−20
14−16
The average gaming FPS of GeForce GTX 660M in PLAYERUNKNOWN'S BATTLEGROUNDS is 17% more, than Radeon R9 M275.
ultra / 1080p
7−8
7−8
QHD / 1440p
0−1
0−1
low / 720p
12−14
8−9
medium / 1080p
10−12
−
The average gaming FPS of GeForce GTX 660M in Red Dead Redemption 2 is 25% more, than Radeon R9 M275.
low / 768p
24−27
16−18
medium / 768p
16−18
12−14
high / 1080p
9−10
6−7
ultra / 1080p
6−7
5−6
4K / 2160p
6−7
−
The average gaming FPS of GeForce GTX 660M in The Witcher 3: Wild Hunt is 40% more, than Radeon R9 M275.
low / 768p
85−90
85−90
medium / 768p
45−50
35−40
ultra / 1080p
18−20
14−16
high / 768p
35−40
30−33
The average gaming FPS of GeForce GTX 660M in World of Tanks is 11% more, than Radeon R9 M275.
Full Specs
GeForce GTX 660M
Radeon R9 M275
Architecture
Kepler
GCN
Code name
N13E-GE
Venus
Type
Laptop
Laptop
Release date
22 March 2012
1 August 2014
Pipelines
384
640
Core clock speed
835 MHz
925 MHz
Boost Clock
950 MHz
925 MHz
Transistor count
1,270 million
1,500 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
30.4 billion/sec
37.00
Floating-point performance
729.6 gflops
1,184 gflops
Memory bus width
128bit
128 Bit
Memory clock speed
2000 MHz
4500 MHz
Memory bandwidth
64.0 GB/s
64 GB/s
Shared memory
-
-
DirectX
12 API
12 (11_1)
Shader Model
5.1
5.1
OpenGL
4.5
4.6
OpenCL
1.1
1.2
Vulkan
1.1.126
1.2.131
CUDA
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
36 Mh/s
122 Mh/s
Laptop size
large
large
Optimus
+
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