GeForce GTX 675MX vs Mobility Radeon HD 3870 X2
In this comparison between GeForce GTX 675MX and Mobility Radeon HD 3870 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 675MX will be the best choice, for others Mobility Radeon HD 3870 X2 will be their preference. Study the comparison tables below and make your choice.
GeForce GTX 675MX and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards
Note: GeForce GTX 675MX and Mobility Radeon HD 3870 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 675MX or Mobility Radeon HD 3870 X2 here:
Main Specs
GeForce GTX 675MX
Mobility Radeon HD 3870 X2
Power consumption (TDP)
100 Watt
110 Watt
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
None
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
512 MB
Display Connectors
No outputs
No outputs
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Mobility Radeon HD 3870 X2 has 10% more power consumption, than GeForce GTX 675MX.
GeForce GTX 675MX is connected by MXM-B (3.0), and Mobility Radeon HD 3870 X2 uses PCIe 2.0 x16 interface.
Mobility Radeon HD 3870 X2 has 510 GB more memory, than GeForce GTX 675MX.
Both cards are used in Laptops.
GeForce GTX 675MX is build with Kepler architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
Core clock speed of Mobility Radeon HD 3870 X2 is 60 MHz higher, than GeForce GTX 675MX.
GeForce GTX 675MX is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
Memory clock speed of GeForce GTX 675MX is 950 MHz higher, than Mobility Radeon HD 3870 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
9−10
6−7
ultra / 1080p
5−6
4−5
QHD / 1440p
0−1
0−1
low / 720p
21−24
16−18
medium / 1080p
12−14
8−9
The average gaming FPS of GeForce GTX 675MX in Assassin's Creed Odyssey is 33% more, than Mobility Radeon HD 3870 X2.
high / 1080p
16−18
12−14
ultra / 1080p
14−16
10−11
QHD / 1440p
0−1
0−1
low / 720p
30−35
24−27
medium / 1080p
16−18
12−14
The average gaming FPS of GeForce GTX 675MX in Battlefield 5 is 33% more, than Mobility Radeon HD 3870 X2.
low / 768p
45−50
45−50
high / 1080p
−
45−50
QHD / 1440p
0−1
0−1
GeForce GTX 675MX and Mobility Radeon HD 3870 X2 have the same average FPS in Call of Duty: Warzone.
low / 768p
160−170
130−140
medium / 768p
130−140
110−120
ultra / 1080p
70−75
50−55
QHD / 1440p
40−45
27−30
4K / 2160p
30−33
27−30
high / 768p
100−110
80−85
The average gaming FPS of GeForce GTX 675MX in Counter-Strike: Global Offensive is 24% more, than Mobility Radeon HD 3870 X2.
low / 768p
55−60
55−60
ultra / 1080p
27−30
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GTX 675MX in Cyberpunk 2077 is 7% more, than Mobility Radeon HD 3870 X2.
low / 768p
90−95
80−85
medium / 768p
70−75
55−60
ultra / 1080p
45−50
30−35
The average gaming FPS of GeForce GTX 675MX in Dota 2 is 22% more, than Mobility Radeon HD 3870 X2.
high / 1080p
10−12
8−9
ultra / 1080p
10−11
7−8
4K / 2160p
4−5
3−4
low / 720p
24−27
18−20
medium / 1080p
12−14
8−9
The average gaming FPS of GeForce GTX 675MX in Far Cry 5 is 33% more, than Mobility Radeon HD 3870 X2.
high / 1080p
18−20
14−16
ultra / 1080p
12−14
10−11
low / 720p
70−75
60−65
medium / 1080p
30−35
21−24
The average gaming FPS of GeForce GTX 675MX in Fortnite is 25% more, than Mobility Radeon HD 3870 X2.
high / 1080p
16−18
12−14
ultra / 1080p
14−16
10−12
QHD / 1440p
4−5
1−2
low / 720p
35−40
24−27
medium / 1080p
18−20
14−16
The average gaming FPS of GeForce GTX 675MX in Forza Horizon 4 is 38% more, than Mobility Radeon HD 3870 X2.
low / 768p
65−70
50−55
medium / 768p
55−60
45−50
high / 1080p
18−20
12−14
ultra / 1080p
8−9
6−7
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 675MX in Grand Theft Auto V is 31% more, than Mobility Radeon HD 3870 X2.
high / 1080p
6−7
4−5
ultra / 1080p
4−5
3−4
4K / 2160p
1−2
0−1
low / 720p
18−20
12−14
medium / 1080p
8−9
6−7
The average gaming FPS of GeForce GTX 675MX in Metro Exodus is 50% more, than Mobility Radeon HD 3870 X2.
low / 768p
100−110
95−100
high / 1080p
−
85−90
ultra / 1080p
90−95
80−85
medium / 1080p
95−100
90−95
The average gaming FPS of GeForce GTX 675MX in Minecraft is 8% more, than Mobility Radeon HD 3870 X2.
high / 1080p
18−20
16−18
ultra / 1080p
14−16
14−16
low / 720p
40−45
30−35
medium / 1080p
20−22
18−20
The average gaming FPS of GeForce GTX 675MX in PLAYERUNKNOWN'S BATTLEGROUNDS is 20% more, than Mobility Radeon HD 3870 X2.
high / 1080p
12−14
−
ultra / 1080p
8−9
7−8
QHD / 1440p
0−1
0−1
low / 720p
18−20
12−14
medium / 1080p
12−14
10−12
The average gaming FPS of GeForce GTX 675MX in Red Dead Redemption 2 is 30% more, than Mobility Radeon HD 3870 X2.
low / 768p
35−40
24−27
medium / 768p
21−24
16−18
high / 1080p
12−14
9−10
ultra / 1080p
8−9
6−7
4K / 2160p
7−8
6−7
The average gaming FPS of GeForce GTX 675MX in The Witcher 3: Wild Hunt is 30% more, than Mobility Radeon HD 3870 X2.
low / 768p
90−95
85−90
medium / 768p
50−55
45−50
ultra / 1080p
24−27
18−20
high / 768p
40−45
35−40
The average gaming FPS of GeForce GTX 675MX in World of Tanks is 12% more, than Mobility Radeon HD 3870 X2.
Full Specs
GeForce GTX 675MX
Mobility Radeon HD 3870 X2
Architecture
Kepler
RV6xx
Code name
N13E-GSR
M88-XT CF
Type
Laptop
Laptop
Release date
1 October 2012
1 September 2008
Pipelines
960
640
Core clock speed
600 MHz
660 MHz
Transistor count
3,540 million
666 million
Manufacturing process technology
28 nm
55 nm
Texture fill rate
48.0 billion/sec
10.56
Floating-point performance
1,256 gflops
2x 422.4 gflops
Memory bus width
256 Bit
256 Bit
Memory clock speed
1800 MHz
850 MHz
Memory bandwidth
115.2 GB/s
54.4 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
N/A
Vulkan
1.1.126
N/A
CUDA
+
CUDA cores
960
Bus support
PCI Express 2.0
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
63 Mh/s
Laptop size
large
large
Optimus
+
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