Mobility Radeon HD 4870 vs Radeon HD 7790
If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4870 and Radeon HD 7790, 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 Mobility Radeon HD 4870 stacks up against Radeon HD 7790, check out specs charts below.
Mobility Radeon HD 4870 is a Laptop Graphics Card
Note: Mobility Radeon HD 4870 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 Mobility Radeon HD 4870 here:
Main Specs
Mobility Radeon HD 4870
Radeon HD 7790
Power consumption (TDP)
85 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Display Connectors
No outputs
1x DVI, 1x HDMI, 2x mini-DisplayPort
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Mobility Radeon HD 4870 is connected by PCIe 2.0 x16, and Radeon HD 7790 uses PCIe 3.0 x16 interface.
Mobility Radeon HD 4870 and Radeon HD 7790 have maximum RAM of 1 GB.
Mobility Radeon HD 4870 is used in Laptops, and Radeon HD 7790 - in Desktops.
Mobility Radeon HD 4870 is build with Terascale 1 architecture, and Radeon HD 7790 - with GCN 2.0.
Core clock speed of Radeon HD 7790 is 450 MHz higher, than Mobility Radeon HD 4870.
Mobility Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon HD 7790 - by 28 nm process technology.
Memory clock speed of Radeon HD 7790 is 5112 MHz higher, than Mobility Radeon HD 4870.
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
16−18
ultra / 1080p
4−5
9−10
QHD / 1440p
0−1
4−5
4K / 2160p
−
4−5
low / 720p
16−18
30−35
medium / 1080p
8−9
20−22
The average gaming FPS of Radeon HD 7790 in Assassin's Creed Odyssey is 122% more, than Mobility Radeon HD 4870.
high / 1080p
12−14
24−27
ultra / 1080p
10−11
21−24
QHD / 1440p
0−1
8−9
4K / 2160p
−
6−7
low / 720p
24−27
50−55
medium / 1080p
12−14
27−30
The average gaming FPS of Radeon HD 7790 in Battlefield 5 is 113% more, than Mobility Radeon HD 4870.
low / 768p
45−50
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
Mobility Radeon HD 4870 and Radeon HD 7790 have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
210−220
medium / 768p
110−120
180−190
ultra / 1080p
55−60
100−110
QHD / 1440p
30−33
55−60
4K / 2160p
27−30
30−35
high / 768p
80−85
140−150
The average gaming FPS of Radeon HD 7790 in Counter-Strike: Global Offensive is 61% more, than Mobility Radeon HD 4870.
low / 768p
55−60
55−60
ultra / 1080p
20−22
40−45
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 7790 in Cyberpunk 2077 is 16% more, than Mobility Radeon HD 4870.
low / 768p
80−85
110−120
medium / 768p
60−65
95−100
ultra / 1080p
35−40
65−70
The average gaming FPS of Radeon HD 7790 in Dota 2 is 55% more, than Mobility Radeon HD 4870.
high / 1080p
8−9
18−20
ultra / 1080p
8−9
16−18
QHD / 1440p
−
16−18
4K / 2160p
3−4
6−7
low / 720p
18−20
40−45
medium / 1080p
9−10
20−22
The average gaming FPS of Radeon HD 7790 in Far Cry 5 is 133% more, than Mobility Radeon HD 4870.
high / 1080p
14−16
24−27
ultra / 1080p
10−11
20−22
QHD / 1440p
−
16−18
low / 720p
60−65
100−110
medium / 1080p
24−27
55−60
The average gaming FPS of Radeon HD 7790 in Fortnite is 85% more, than Mobility Radeon HD 4870.
high / 1080p
12−14
27−30
ultra / 1080p
10−12
21−24
QHD / 1440p
1−2
10−11
4K / 2160p
−
10−11
low / 720p
27−30
55−60
medium / 1080p
14−16
30−33
The average gaming FPS of Radeon HD 7790 in Forza Horizon 4 is 130% more, than Mobility Radeon HD 4870.
low / 768p
50−55
85−90
medium / 768p
45−50
75−80
high / 1080p
12−14
30−35
ultra / 1080p
6−7
12−14
QHD / 1440p
0−1
3−4
The average gaming FPS of Radeon HD 7790 in Grand Theft Auto V is 79% more, than Mobility Radeon HD 4870.
high / 1080p
5−6
10−11
ultra / 1080p
3−4
8−9
4K / 2160p
0−1
3−4
low / 720p
12−14
30−35
medium / 1080p
6−7
12−14
The average gaming FPS of Radeon HD 7790 in Metro Exodus is 128% more, than Mobility Radeon HD 4870.
low / 768p
95−100
110−120
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
90−95
100−110
The average gaming FPS of Radeon HD 7790 in Minecraft is 15% more, than Mobility Radeon HD 4870.
high / 1080p
16−18
21−24
ultra / 1080p
14−16
18−20
low / 720p
30−35
55−60
medium / 1080p
18−20
24−27
The average gaming FPS of Radeon HD 7790 in PLAYERUNKNOWN'S BATTLEGROUNDS is 55% more, than Mobility Radeon HD 4870.
high / 1080p
−
14−16
ultra / 1080p
7−8
10−11
QHD / 1440p
0−1
0−1
low / 720p
12−14
30−33
medium / 1080p
10−12
16−18
The average gaming FPS of Radeon HD 7790 in Red Dead Redemption 2 is 90% more, than Mobility Radeon HD 4870.
low / 768p
24−27
55−60
medium / 768p
16−18
35−40
high / 1080p
9−10
20−22
ultra / 1080p
6−7
10−12
4K / 2160p
6−7
8−9
The average gaming FPS of Radeon HD 7790 in The Witcher 3: Wild Hunt is 107% more, than Mobility Radeon HD 4870.
low / 768p
85−90
100−110
medium / 768p
45−50
60−65
ultra / 1080p
20−22
35−40
high / 768p
35−40
55−60
The average gaming FPS of Radeon HD 7790 in World of Tanks is 35% more, than Mobility Radeon HD 4870.
Full Specs
Mobility Radeon HD 4870
Radeon HD 7790
Architecture
Terascale 1
GCN 2.0
Code name
M98-XT
Bonaire
Type
Laptop
Desktop
Release date
9 January 2009
22 March 2013
Pipelines
800
896
Core clock speed
550 MHz
1000 MHz
Transistor count
956 million
2,080 million
Manufacturing process technology
55 nm
28 nm
Texture fill rate
22.00
56.00
Floating-point performance
880.0 gflops
1,792 gflops
Length
183 mm
Memory bus width
256 Bit
128 Bit
Memory clock speed
888 MHz
6000 MHz
Memory bandwidth
56.83 GB/s
96 GB/s
Shared memory
-
DirectX
10.1 (10_1)
12 (12_0)
Shader Model
4.1
6.3
OpenGL
3.3
4.6
OpenCL
1.1
2.0
Vulkan
N/A
1.2.131
Bitcoin / BTC (SHA256)
218 Mh/s
Laptop size
large
Ethereum / ETH (DaggerHashimoto)
5.2 Mh/s
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