GeForce 945M vs Radeon HD 7990
In this comparison between GeForce 945M and Radeon HD 7990 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 945M will be the best choice, for others Radeon HD 7990 will be their preference. Study the comparison tables below and make your choice.
GeForce 945M is a Laptop Graphics Card
Note: GeForce 945M 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 945M here:
Main Specs
GeForce 945M
Radeon HD 7990
Power consumption (TDP)
75 Watt
375 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
None
2x 8-pin
Memory type
DDR3
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 400% more power consumption, than GeForce 945M.
GeForce 945M is connected by MXM-B (3.0), and Radeon HD 7990 uses PCIe 3.0 x16 interface.
GeForce 945M has 1 GB more memory, than Radeon HD 7990.
GeForce 945M is used in Laptops, and Radeon HD 7990 - in Desktops.
GeForce 945M is build with Maxwell architecture, and Radeon HD 7990 - with GCN 1.0.
Core clock speed of Radeon HD 7990 is 22 MHz higher, than GeForce 945M.
GeForce 945M and Radeon HD 7990 are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7990 is 4000 MHz higher, than GeForce 945M.
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
10−11
35−40
ultra / 1080p
6−7
21−24
QHD / 1440p
1−2
16−18
4K / 2160p
−
10−11
low / 720p
24−27
60−65
medium / 1080p
12−14
40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 227% more, than GeForce 945M.
high / 1080p
16−18
55−60
ultra / 1080p
14−16
45−50
QHD / 1440p
1−2
35−40
4K / 2160p
−
18−20
low / 720p
35−40
100−110
medium / 1080p
18−20
60−65
The average gaming FPS of Radeon HD 7990 in Battlefield 5 is 244% more, than GeForce 945M.
low / 768p
45−50
50−55
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7990 in Call of Duty: Warzone is 10% more, than GeForce 945M.
low / 768p
170−180
250−260
medium / 768p
140−150
220−230
ultra / 1080p
75−80
180−190
QHD / 1440p
40−45
110−120
4K / 2160p
30−33
70−75
high / 768p
110−120
210−220
The average gaming FPS of Radeon HD 7990 in Counter-Strike: Global Offensive is 82% more, than GeForce 945M.
low / 768p
55−60
60−65
ultra / 1080p
27−30
−
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon HD 7990 in Cyberpunk 2077 is 15% more, than GeForce 945M.
low / 768p
95−100
120−130
medium / 768p
75−80
110−120
ultra / 1080p
45−50
100−110
The average gaming FPS of Radeon HD 7990 in Dota 2 is 55% more, than GeForce 945M.
high / 1080p
12−14
45−50
ultra / 1080p
12−14
40−45
QHD / 1440p
−
27−30
4K / 2160p
5−6
14−16
low / 720p
27−30
80−85
medium / 1080p
12−14
45−50
The average gaming FPS of Radeon HD 7990 in Far Cry 5 is 235% more, than GeForce 945M.
high / 1080p
18−20
60−65
ultra / 1080p
14−16
45−50
QHD / 1440p
−
27−30
4K / 2160p
−
27−30
low / 720p
80−85
180−190
medium / 1080p
35−40
110−120
The average gaming FPS of Radeon HD 7990 in Fortnite is 168% more, than GeForce 945M.
high / 1080p
18−20
60−65
ultra / 1080p
14−16
45−50
QHD / 1440p
5−6
30−35
4K / 2160p
−
24−27
low / 720p
35−40
100−110
medium / 1080p
21−24
65−70
The average gaming FPS of Radeon HD 7990 in Forza Horizon 4 is 231% more, than GeForce 945M.
low / 768p
65−70
140−150
medium / 768p
60−65
120−130
high / 1080p
21−24
70−75
ultra / 1080p
9−10
30−35
QHD / 1440p
0−1
21−24
The average gaming FPS of Radeon HD 7990 in Grand Theft Auto V is 132% more, than GeForce 945M.
high / 1080p
7−8
24−27
ultra / 1080p
5−6
20−22
QHD / 1440p
−
16−18
4K / 2160p
1−2
8−9
low / 720p
20−22
65−70
medium / 1080p
9−10
30−35
The average gaming FPS of Radeon HD 7990 in Metro Exodus is 244% more, than GeForce 945M.
low / 768p
100−110
130−140
ultra / 1080p
90−95
−
medium / 1080p
100−105
120−130
The average gaming FPS of Radeon HD 7990 in Minecraft is 26% more, than GeForce 945M.
high / 1080p
18−20
−
ultra / 1080p
16−18
14−16
low / 720p
45−50
100−110
medium / 1080p
21−24
18−20
The average gaming FPS of Radeon HD 7990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 58% more, than GeForce 945M.
high / 1080p
12−14
24−27
ultra / 1080p
8−9
16−18
QHD / 1440p
0−1
10−11
4K / 2160p
−
7−8
low / 720p
20−22
65−70
medium / 1080p
12−14
35−40
The average gaming FPS of Radeon HD 7990 in Red Dead Redemption 2 is 176% more, than GeForce 945M.
low / 768p
35−40
130−140
medium / 768p
24−27
85−90
high / 1080p
14−16
45−50
ultra / 1080p
8−9
24−27
4K / 2160p
7−8
16−18
The average gaming FPS of Radeon HD 7990 in The Witcher 3: Wild Hunt is 244% more, than GeForce 945M.
low / 768p
95−100
90−95
medium / 768p
55−60
60−65
ultra / 1080p
27−30
50−55
high / 768p
45−50
60−65
The average gaming FPS of Radeon HD 7990 in World of Tanks is 17% more, than GeForce 945M.
Full Specs
GeForce 945M
Radeon HD 7990
Architecture
Maxwell
GCN 1.0
Code name
GM107
Malta
Type
Laptop
Desktop
Release date
12 March 2015
24 April 2013
Pipelines
512
2048
Core clock speed
928 MHz
950 MHz
Boost Clock
1045 MHz
1000 MHz
Transistor count
1,870 million
4,313 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
40.80
128.0
Floating-point performance
953.9 gflops
2x 4,096 gflops
Length
307 mm
Memory bus width
128 Bit
384 Bit
Memory clock speed
2000 MHz
6000 MHz
Memory bandwidth
28.8 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
1.1.126
1.2.131
CUDA
+
Bus support
PCI Express 3.0
Bitcoin / BTC (SHA256)
107 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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