Mobility Radeon HD 4870 vs Radeon HD 8770M
If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4870 and Radeon HD 8770M, 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 8770M, check out specs charts below.
Mobility Radeon HD 4870 and Radeon HD 8770M are Laptop Graphics Cards
Note: Mobility Radeon HD 4870 and Radeon HD 8770M 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 Mobility Radeon HD 4870 or Radeon HD 8770M here:
Main Specs
Mobility Radeon HD 4870
Radeon HD 8770M
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Display Connectors
No outputs
No outputs
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Mobility Radeon HD 4870 is connected by PCIe 2.0 x16, and Radeon HD 8770M uses PCIe 3.0 x8 interface.
Radeon HD 8770M has 1 GB more memory, than Mobility Radeon HD 4870.
Both cards are used in Laptops.
Mobility Radeon HD 4870 is build with Terascale 1 architecture, and Radeon HD 8770M - with GCN.
Core clock speed of Radeon HD 8770M is 225 MHz higher, than Mobility Radeon HD 4870.
Mobility Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon HD 8770M - by 28 nm process technology.
Memory clock speed of Radeon HD 8770M is 3612 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
7−8
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
16−18
16−18
medium / 1080p
8−9
8−9
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
12−14
12−14
ultra / 1080p
10−11
10−11
QHD / 1440p
0−1
0−1
low / 720p
24−27
24−27
medium / 1080p
12−14
12−14
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Battlefield 5.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
140−150
medium / 768p
110−120
110−120
ultra / 1080p
55−60
55−60
QHD / 1440p
30−33
30−33
4K / 2160p
27−30
27−30
high / 768p
80−85
80−85
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Counter-Strike: Global Offensive.
low / 768p
55−60
55−60
ultra / 1080p
20−22
20−22
medium / 1080p
45−50
45−50
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Cyberpunk 2077.
low / 768p
80−85
80−85
medium / 768p
60−65
60−65
ultra / 1080p
35−40
35−40
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Dota 2.
high / 1080p
8−9
8−9
ultra / 1080p
8−9
8−9
4K / 2160p
3−4
3−4
low / 720p
18−20
18−20
medium / 1080p
9−10
9−10
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Far Cry 5.
high / 1080p
14−16
14−16
ultra / 1080p
10−11
10−11
low / 720p
60−65
60−65
medium / 1080p
24−27
24−27
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Fortnite.
high / 1080p
12−14
12−14
ultra / 1080p
10−12
10−12
QHD / 1440p
1−2
1−2
low / 720p
27−30
27−30
medium / 1080p
14−16
14−16
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Forza Horizon 4.
low / 768p
50−55
50−55
medium / 768p
45−50
45−50
high / 1080p
12−14
12−14
ultra / 1080p
6−7
6−7
QHD / 1440p
0−1
0−1
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Grand Theft Auto V.
high / 1080p
5−6
5−6
ultra / 1080p
3−4
3−4
4K / 2160p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
6−7
6−7
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Metro Exodus.
low / 768p
95−100
95−100
high / 1080p
90−95
90−95
ultra / 1080p
80−85
80−85
medium / 1080p
90−95
90−95
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Minecraft.
high / 1080p
16−18
16−18
ultra / 1080p
14−16
14−16
low / 720p
30−35
30−35
medium / 1080p
18−20
18−20
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
ultra / 1080p
7−8
7−8
QHD / 1440p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
10−12
10−12
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in Red Dead Redemption 2.
low / 768p
24−27
24−27
medium / 768p
16−18
16−18
high / 1080p
9−10
9−10
ultra / 1080p
6−7
6−7
4K / 2160p
6−7
6−7
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in The Witcher 3: Wild Hunt.
low / 768p
85−90
85−90
medium / 768p
45−50
45−50
ultra / 1080p
20−22
20−22
high / 768p
35−40
35−40
Mobility Radeon HD 4870 and Radeon HD 8770M have the same average FPS in World of Tanks.
Full Specs
Mobility Radeon HD 4870
Radeon HD 8770M
Architecture
Terascale 1
GCN
Code name
M98-XT
Mars
Type
Laptop
Laptop
Release date
9 January 2009
16 November 2012
Pipelines
800
384
Core clock speed
550 MHz
775 MHz
Boost Clock
825 MHz
Transistor count
956 million
950 million
Manufacturing process technology
55 nm
28 nm
Texture fill rate
22.00
19.80
Floating-point performance
880.0 gflops
633.6 gflops
Memory bus width
256 Bit
128 Bit
Memory clock speed
888 MHz
4500 MHz
Memory bandwidth
56.83 GB/s
72 GB/s
Shared memory
-
-
DirectX
10.1 (10_1)
12 (11_1)
Shader Model
4.1
5.1
OpenGL
3.3
4.6
OpenCL
1.1
1.2
Vulkan
N/A
1.2.131
Laptop size
large
medium sized
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