GeForce 840A vs Radeon HD 7790
When comparing GeForce 840A and Radeon HD 7790, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 840A and Radeon HD 7790 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce 840A
Main Specs
GeForce 840A
Radeon HD 7790
Power consumption (TDP)
33 Watt
85 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
1 GB
Display Connectors
No outputs
1x DVI, 1x HDMI, 2x mini-DisplayPort
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Radeon HD 7790 has 157% more power consumption, than GeForce 840A.
GeForce 840A is connected by PCIe 3.0 x8, and Radeon HD 7790 uses PCIe 3.0 x16 interface.
GeForce 840A has 1 GB more memory, than Radeon HD 7790.
Both cards are used in Desktops.
GeForce 840A is build with Maxwell architecture, and Radeon HD 7790 - with GCN 2.0.
Core clock speed of GeForce 840A is 29 MHz higher, than Radeon HD 7790.
GeForce 840A and Radeon HD 7790 are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7790 is 3998 MHz higher, than GeForce 840A.
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
3−4
16−18
ultra / 1080p
2−3
9−10
QHD / 1440p
0−1
4−5
4K / 2160p
−
4−5
low / 720p
14−16
30−35
medium / 1080p
5−6
20−22
The average gaming FPS of Radeon HD 7790 in Assassin's Creed Odyssey is 233% more, than GeForce 840A.
high / 1080p
−
24−27
ultra / 1080p
7−8
21−24
QHD / 1440p
0−1
8−9
4K / 2160p
−
6−7
low / 720p
18−20
50−55
medium / 1080p
8−9
27−30
The average gaming FPS of Radeon HD 7790 in Battlefield 5 is 209% more, than GeForce 840A.
low / 768p
45−50
45−50
high / 1080p
30−35
−
QHD / 1440p
0−1
0−1
GeForce 840A and Radeon HD 7790 have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
210−220
medium / 768p
90−95
180−190
ultra / 1080p
40−45
100−110
QHD / 1440p
24−27
55−60
4K / 2160p
18−20
30−35
high / 768p
65−70
140−150
The average gaming FPS of Radeon HD 7790 in Counter-Strike: Global Offensive is 98% more, than GeForce 840A.
low / 768p
80−85
55−60
ultra / 1080p
14−16
40−45
medium / 1080p
40−45
45−50
The average gaming FPS of Radeon HD 7790 in Cyberpunk 2077 is 6% more, than GeForce 840A.
low / 768p
75−80
110−120
medium / 768p
50−55
95−100
ultra / 1080p
27−30
65−70
The average gaming FPS of Radeon HD 7790 in Dota 2 is 78% more, than GeForce 840A.
high / 1080p
5−6
18−20
ultra / 1080p
−
16−18
QHD / 1440p
−
16−18
4K / 2160p
2−3
6−7
low / 720p
14−16
40−45
medium / 1080p
6−7
20−22
The average gaming FPS of Radeon HD 7790 in Far Cry 5 is 214% more, than GeForce 840A.
high / 1080p
12−14
24−27
ultra / 1080p
7−8
20−22
QHD / 1440p
−
16−18
low / 720p
50−55
100−110
medium / 1080p
14−16
55−60
The average gaming FPS of Radeon HD 7790 in Fortnite is 136% more, than GeForce 840A.
high / 1080p
7−8
27−30
ultra / 1080p
−
21−24
QHD / 1440p
0−1
10−11
4K / 2160p
−
10−11
low / 720p
20−22
55−60
medium / 1080p
9−10
30−33
The average gaming FPS of Radeon HD 7790 in Forza Horizon 4 is 225% more, than GeForce 840A.
low / 768p
45−50
85−90
medium / 768p
−
75−80
high / 1080p
8−9
30−35
ultra / 1080p
5−6
12−14
QHD / 1440p
0−1
3−4
medium / 720p
40−45
−
The average gaming FPS of Radeon HD 7790 in Grand Theft Auto V is 120% more, than GeForce 840A.
high / 1080p
3−4
10−11
ultra / 1080p
1−2
8−9
4K / 2160p
0−1
3−4
low / 720p
8−9
30−35
medium / 1080p
4−5
12−14
The average gaming FPS of Radeon HD 7790 in Metro Exodus is 300% more, than GeForce 840A.
low / 768p
85−90
110−120
high / 1080p
85−90
−
ultra / 1080p
80−85
−
medium / 1080p
85−90
100−110
The average gaming FPS of Radeon HD 7790 in Minecraft is 26% more, than GeForce 840A.
high / 1080p
−
21−24
ultra / 1080p
12−14
18−20
low / 720p
27−30
55−60
medium / 1080p
14−16
24−27
The average gaming FPS of Radeon HD 7790 in PLAYERUNKNOWN'S BATTLEGROUNDS is 88% more, than GeForce 840A.
high / 1080p
−
14−16
ultra / 1080p
7−8
10−11
QHD / 1440p
0−1
0−1
low / 720p
8−9
30−33
medium / 1080p
−
16−18
The average gaming FPS of Radeon HD 7790 in Red Dead Redemption 2 is 162% more, than GeForce 840A.
low / 768p
16−18
55−60
medium / 768p
12−14
35−40
high / 1080p
6−7
20−22
ultra / 1080p
5−6
10−12
4K / 2160p
−
8−9
The average gaming FPS of Radeon HD 7790 in The Witcher 3: Wild Hunt is 210% more, than GeForce 840A.
low / 768p
70−75
100−110
medium / 768p
35−40
60−65
ultra / 1080p
16−18
35−40
high / 768p
30−35
55−60
The average gaming FPS of Radeon HD 7790 in World of Tanks is 66% more, than GeForce 840A.
Full Specs
GeForce 840A
Radeon HD 7790
Architecture
Maxwell
GCN 2.0
Code name
GM108
Bonaire
Type
Desktop
Desktop
Release date
17 March 2014
22 March 2013
Pipelines
384
896
Core clock speed
1029 MHz
1000 MHz
Boost Clock
1124 MHz
Transistor count
2,080 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
56.00
Floating-point performance
863.2 gflops
1,792 gflops
Length
183 mm
Memory bus width
64 Bit
128 Bit
Memory clock speed
2002 MHz
6000 MHz
Memory bandwidth
16.02 GB/s
96 GB/s
DirectX
12 (11_0)
12 (12_0)
Shader Model
5.1
6.3
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.1.126
1.2.131
CUDA
5.0
Bitcoin / BTC (SHA256)
218 Mh/s
Ethereum / ETH (DaggerHashimoto)
5.2 Mh/s
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