GeForce GTX 660M vs Mobility Radeon HD 4870 X2
In this comparison between GeForce GTX 660M and Mobility Radeon HD 4870 X2 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GTX 660M will be the best choice, for others Mobility Radeon HD 4870 X2 will be their preference. Study the comparison tables below and make your choice.
GeForce GTX 660M and Mobility Radeon HD 4870 X2 are Laptop Graphics Cards
Note: GeForce GTX 660M and Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 here:
Main Specs
GeForce GTX 660M
Mobility Radeon HD 4870 X2
Power consumption (TDP)
50 Watt
Interface
MXM-B (3.0)
PCIe 2.0 x16
Memory type
GDDR5
GDDR3, GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
No outputs
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GeForce GTX 660M is connected by MXM-B (3.0), and Mobility Radeon HD 4870 X2 uses PCIe 2.0 x16 interface.
GeForce GTX 660M and Mobility Radeon HD 4870 X2 have maximum RAM of 2 GB.
Both cards are used in Laptops.
GeForce GTX 660M is build with Kepler architecture, and Mobility Radeon HD 4870 X2 - with Terascale 1.
Core clock speed of GeForce GTX 660M is 285 MHz higher, than Mobility Radeon HD 4870 X2.
GeForce GTX 660M is manufactured by 28 nm process technology, and Mobility Radeon HD 4870 X2 - by 55 nm process technology.
Memory clock speed of GeForce GTX 660M is 1112 MHz higher, than Mobility Radeon HD 4870 X2.
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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 in World of Tanks is 12% more, than GeForce GTX 660M.
Full Specs
GeForce GTX 660M
Mobility Radeon HD 4870 X2
Architecture
Kepler
Terascale 1
Code name
N13E-GE
M98-XT
Type
Laptop
Laptop
Release date
22 March 2012
9 January 2009
Pipelines
384
1600
Core clock speed
835 MHz
550 MHz
Boost Clock
950 MHz
Transistor count
1,270 million
956 million
Manufacturing process technology
28 nm
55 nm
Texture fill rate
30.4 billion/sec
22.00
Floating-point performance
729.6 gflops
2x 880.0 gflops
Memory bus width
128bit
256 Bit
Memory clock speed
2000 MHz
888 MHz
Memory bandwidth
64.0 GB/s
89.6 GB/s
Shared memory
-
-
DirectX
12 API
10.1 (10_1)
Shader Model
5.1
4.1
OpenGL
4.5
3.3
OpenCL
1.1
1.1
Vulkan
1.1.126
N/A
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
Laptop size
large
large
Optimus
+
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