GeForce GT 640M vs Radeon RX Vega M GL 870
If you are going to buy a new graphics card and are choosing between GeForce GT 640M and Radeon RX Vega M GL 870, 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 GT 640M stacks up against Radeon RX Vega M GL 870, check out specs charts below.
GeForce GT 640M and Radeon RX Vega M GL 870 are Laptop Graphics Cards
Note: GeForce GT 640M and Radeon RX Vega M GL 870 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 GT 640M or Radeon RX Vega M GL 870 here:
Main Specs
GeForce GT 640M
Radeon RX Vega M GL 870
Power consumption (TDP)
32 Watt
Interface
PCIe 3.0 x16
Memory type
DDR3\GDDR5
HBM2
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
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Radeon RX Vega M GL 870 has 2 GB more memory, than GeForce GT 640M.
Both cards are used in Laptops.
GeForce GT 640M is build with Kepler architecture, and Radeon RX Vega M GL 870 - with Vega.
GeForce GT 640M is manufactured by 28 nm process technology, and Radeon RX Vega M GL 870 - by 14 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
0−1
35−40
ultra / 1080p
0−1
21−24
QHD / 1440p
0−1
16−18
4K / 2160p
−
10−11
low / 720p
10−12
60−65
medium / 1080p
2−3
40−45
The average gaming FPS of Radeon RX Vega M GL 870 in Assassin's Creed Odyssey is 766% more, than GeForce GT 640M.
high / 1080p
−
55−60
ultra / 1080p
3−4
45−50
QHD / 1440p
0−1
35−40
4K / 2160p
−
18−20
low / 720p
12−14
100−110
medium / 1080p
4−5
60−65
The average gaming FPS of Radeon RX Vega M GL 870 in Battlefield 5 is 914% more, than GeForce GT 640M.
low / 768p
50−55
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
GeForce GT 640M and Radeon RX Vega M GL 870 have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
250−260
medium / 768p
85−90
220−230
ultra / 1080p
35−40
180−190
QHD / 1440p
−
110−120
4K / 2160p
10−11
70−75
high / 768p
55−60
210−220
The average gaming FPS of Radeon RX Vega M GL 870 in Counter-Strike: Global Offensive is 211% more, than GeForce GT 640M.
low / 768p
70−75
60−65
ultra / 1080p
12−14
−
medium / 1080p
45−50
55−60
GeForce GT 640M and Radeon RX Vega M GL 870 have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
120−130
medium / 768p
40−45
110−120
ultra / 1080p
18−20
100−110
The average gaming FPS of Radeon RX Vega M GL 870 in Dota 2 is 161% more, than GeForce GT 640M.
high / 1080p
2−3
45−50
ultra / 1080p
2−3
40−45
QHD / 1440p
−
27−30
4K / 2160p
0−1
14−16
low / 720p
9−10
80−85
medium / 1080p
3−4
45−50
The average gaming FPS of Radeon RX Vega M GL 870 in Far Cry 5 is 1275% more, than GeForce GT 640M.
high / 1080p
−
60−65
ultra / 1080p
5−6
45−50
QHD / 1440p
1−2
27−30
4K / 2160p
−
27−30
low / 720p
45−50
180−190
medium / 1080p
7−8
110−120
The average gaming FPS of Radeon RX Vega M GL 870 in Fortnite is 526% more, than GeForce GT 640M.
high / 1080p
2−3
60−65
ultra / 1080p
−
45−50
QHD / 1440p
0−1
30−35
4K / 2160p
−
24−27
low / 720p
14−16
100−110
medium / 1080p
5−6
65−70
The average gaming FPS of Radeon RX Vega M GL 870 in Forza Horizon 4 is 1014% more, than GeForce GT 640M.
low / 768p
40−45
140−150
medium / 768p
−
120−130
high / 1080p
3−4
70−75
ultra / 1080p
2−3
30−35
QHD / 1440p
0−1
21−24
medium / 720p
30−35
−
The average gaming FPS of Radeon RX Vega M GL 870 in Grand Theft Auto V is 418% more, than GeForce GT 640M.
high / 1080p
1−2
24−27
ultra / 1080p
0−1
20−22
QHD / 1440p
−
16−18
4K / 2160p
0−1
8−9
low / 720p
2−3
65−70
medium / 1080p
2−3
30−35
The average gaming FPS of Radeon RX Vega M GL 870 in Metro Exodus is 1950% more, than GeForce GT 640M.
low / 768p
85−90
130−140
high / 1080p
55−60
−
medium / 1080p
−
120−130
The average gaming FPS of Radeon RX Vega M GL 870 in Minecraft is 55% more, than GeForce GT 640M.
high / 1080p
14−16
−
ultra / 1080p
12−14
14−16
low / 720p
24−27
100−110
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon RX Vega M GL 870 in PLAYERUNKNOWN'S BATTLEGROUNDS is 170% more, than GeForce GT 640M.
high / 1080p
−
24−27
ultra / 1080p
3−4
16−18
QHD / 1440p
0−1
10−11
4K / 2160p
−
7−8
low / 720p
3−4
65−70
medium / 1080p
−
35−40
The average gaming FPS of Radeon RX Vega M GL 870 in Red Dead Redemption 2 is 1300% more, than GeForce GT 640M.
low / 768p
7−8
130−140
medium / 768p
6−7
85−90
high / 1080p
3−4
45−50
ultra / 1080p
−
24−27
4K / 2160p
0−1
16−18
The average gaming FPS of Radeon RX Vega M GL 870 in The Witcher 3: Wild Hunt is 1700% more, than GeForce GT 640M.
low / 768p
70−75
90−95
medium / 768p
35−40
60−65
ultra / 1080p
12−14
50−55
high / 768p
27−30
60−65
The average gaming FPS of Radeon RX Vega M GL 870 in World of Tanks is 81% more, than GeForce GT 640M.
Full Specs
GeForce GT 640M
Radeon RX Vega M GL 870
Architecture
Kepler
Vega
Code name
N13P-GS
Vega Kaby Lake-G
Type
Laptop
Laptop
Release date
22 March 2012
7 January 2018
Pipelines
384
1280
Core clock speed
931 MHz
Boost Clock
645 MHz
1011 MHz
Transistor count
1,270 million
Manufacturing process technology
28 nm
14 nm
Floating-point performance
480.0 gflops
Memory bus width
128bit
Memory clock speed
1800 - 4000 MHz
Shared memory
-
-
DirectX
12 API
DirectX 12_1
Shader Model
5.1
OpenGL
4.5
OpenCL
1.1
Vulkan
1.1.126
CUDA
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
18 Mh/s
Laptop size
medium sized
medium sized
Optimus
+
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