GeForce 940MX vs Radeon HD 7990
If you are going to buy a new graphics card and are choosing between GeForce 940MX and Radeon HD 7990, 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 940MX stacks up against Radeon HD 7990, check out specs charts below.
GeForce 940MX is a Laptop Graphics Card
Note: GeForce 940MX 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 GeForce 940MX here:
Main Specs
GeForce 940MX
Radeon HD 7990
Power consumption (TDP)
23 Watt
375 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
2x 8-pin
Memory type
DDR3, GDDR5
GDDR5
Maximum RAM amount
4 GB
3 GB
Display Connectors
No outputs
1x DVI, 4x mini-DisplayPort
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Radeon HD 7990 has 1530% more power consumption, than GeForce 940MX.
GeForce 940MX is connected by PCIe 3.0 x8, and Radeon HD 7990 uses PCIe 3.0 x16 interface.
GeForce 940MX has 1 GB more memory, than Radeon HD 7990.
GeForce 940MX is used in Laptops, and Radeon HD 7990 - in Desktops.
GeForce 940MX is build with Maxwell architecture, and Radeon HD 7990 - with GCN 1.0.
Core clock speed of GeForce 940MX is 172 MHz higher, than Radeon HD 7990.
GeForce 940MX and Radeon HD 7990 are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7990 is 2000 MHz higher, than GeForce 940MX.
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
7−8
35−40
ultra / 1080p
4−5
21−24
QHD / 1440p
0−1
16−18
4K / 2160p
−
10−11
low / 720p
16−18
60−65
medium / 1080p
8−9
40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 355% more, than GeForce 940MX.
high / 1080p
12−14
55−60
ultra / 1080p
10−11
45−50
QHD / 1440p
0−1
35−40
4K / 2160p
−
18−20
low / 720p
24−27
100−110
medium / 1080p
12−14
60−65
The average gaming FPS of Radeon HD 7990 in Battlefield 5 is 353% more, than GeForce 940MX.
low / 768p
45−50
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7990 in Call of Duty: Warzone is 10% more, than GeForce 940MX.
low / 768p
140−150
250−260
medium / 768p
110−120
220−230
ultra / 1080p
55−60
180−190
QHD / 1440p
30−33
110−120
4K / 2160p
27−30
70−75
high / 768p
80−85
210−220
The average gaming FPS of Radeon HD 7990 in Counter-Strike: Global Offensive is 132% more, than GeForce 940MX.
low / 768p
55−60
60−65
ultra / 1080p
20−22
−
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon HD 7990 in Cyberpunk 2077 is 15% more, than GeForce 940MX.
low / 768p
80−85
120−130
medium / 768p
60−65
110−120
ultra / 1080p
35−40
100−110
The average gaming FPS of Radeon HD 7990 in Dota 2 is 91% more, than GeForce 940MX.
high / 1080p
8−9
45−50
ultra / 1080p
8−9
40−45
QHD / 1440p
−
27−30
4K / 2160p
3−4
14−16
low / 720p
18−20
80−85
medium / 1080p
9−10
45−50
The average gaming FPS of Radeon HD 7990 in Far Cry 5 is 422% more, than GeForce 940MX.
high / 1080p
14−16
60−65
ultra / 1080p
10−11
45−50
QHD / 1440p
−
27−30
4K / 2160p
−
27−30
low / 720p
60−65
180−190
medium / 1080p
24−27
110−120
The average gaming FPS of Radeon HD 7990 in Fortnite is 264% more, than GeForce 940MX.
high / 1080p
12−14
60−65
ultra / 1080p
10−12
45−50
QHD / 1440p
1−2
30−35
4K / 2160p
−
24−27
low / 720p
27−30
100−110
medium / 1080p
14−16
65−70
The average gaming FPS of Radeon HD 7990 in Forza Horizon 4 is 384% more, than GeForce 940MX.
low / 768p
50−55
140−150
medium / 768p
45−50
120−130
high / 1080p
12−14
70−75
ultra / 1080p
6−7
30−35
QHD / 1440p
0−1
21−24
The average gaming FPS of Radeon HD 7990 in Grand Theft Auto V is 220% more, than GeForce 940MX.
high / 1080p
5−6
24−27
ultra / 1080p
3−4
20−22
QHD / 1440p
−
16−18
4K / 2160p
0−1
8−9
low / 720p
12−14
65−70
medium / 1080p
6−7
30−35
The average gaming FPS of Radeon HD 7990 in Metro Exodus is 414% more, than GeForce 940MX.
low / 768p
95−100
130−140
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
90−95
120−130
The average gaming FPS of Radeon HD 7990 in Minecraft is 36% more, than GeForce 940MX.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
30−35
100−110
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon HD 7990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 109% more, than GeForce 940MX.
high / 1080p
−
24−27
ultra / 1080p
7−8
16−18
QHD / 1440p
0−1
10−11
4K / 2160p
−
7−8
low / 720p
12−14
65−70
medium / 1080p
10−12
35−40
The average gaming FPS of Radeon HD 7990 in Red Dead Redemption 2 is 300% more, than GeForce 940MX.
low / 768p
24−27
130−140
medium / 768p
16−18
85−90
high / 1080p
9−10
45−50
ultra / 1080p
6−7
24−27
4K / 2160p
6−7
16−18
The average gaming FPS of Radeon HD 7990 in The Witcher 3: Wild Hunt is 376% more, than GeForce 940MX.
low / 768p
85−90
90−95
medium / 768p
45−50
60−65
ultra / 1080p
20−22
50−55
high / 768p
35−40
60−65
The average gaming FPS of Radeon HD 7990 in World of Tanks is 39% more, than GeForce 940MX.
Full Specs
GeForce 940MX
Radeon HD 7990
Architecture
Maxwell
GCN 1.0
Code name
N16S-GTR-B/S
Malta
Type
Laptop
Desktop
Release date
10 March 2016
24 April 2013
Pipelines
384
2048
Core clock speed
1122 MHz
950 MHz
Boost Clock
1242 MHz
1000 MHz
Transistor count
1,870 million
4,313 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
23.83
128.0
Floating-point performance
762.6 gflops
2x 4,096 gflops
Length
307 mm
Memory bus width
64 Bit
384 Bit
Memory clock speed
4000 MHz
6000 MHz
Memory bandwidth
40.1 GB/s
288.0 GB/s
Shared memory
-
DirectX
12 (11_0)
12 (11_1)
Shader Model
5.1
5.1
OpenGL
4.5
4.6
OpenCL
1.2
1.2
Vulkan
1.1
1.2.131
CUDA
+
Bus support
PCI Express 3.0
Bitcoin / BTC (SHA256)
102 Mh/s
459 Mh/s
Laptop size
medium sized
Optimus
+
Ethereum / ETH (DaggerHashimoto)
44 Mh/s
GPU Boost
2.0
GameWorks
+
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