Radeon HD 7770 vs Radeon HD 8870M
If you are going to buy a new graphics card and are choosing between Radeon HD 7770 and Radeon HD 8870M, 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 Radeon HD 7770 stacks up against Radeon HD 8870M, check out specs charts below.
Radeon HD 8870M is a Laptop Graphics Card
Note: Radeon HD 8870M 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 Radeon HD 8870M here:
Main Specs
Radeon HD 7770
Radeon HD 8870M
Interface
PCIe 3.0 x16
Memory type
GDDR5
GDDR5, DDR3
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
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Radeon HD 7770 and Radeon HD 8870M have maximum RAM of 2 GB.
Radeon HD 7770 is used in Desktops, and Radeon HD 8870M - in Laptops.
Radeon HD 7770 and Radeon HD 8870M are build with GCN architecture.
Core clock speed of Radeon HD 7770 is 275 MHz higher, than Radeon HD 8870M.
Radeon HD 7770 and Radeon HD 8870M are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7770 and Radeon HD 8870M is 4500 MHz.
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
7−8
ultra / 1080p
6−7
4−5
QHD / 1440p
1−2
0−1
low / 720p
24−27
18−20
medium / 1080p
12−14
9−10
The average gaming FPS of Radeon HD 7770 in Assassin's Creed Odyssey is 30% more, than Radeon HD 8870M.
high / 1080p
16−18
12−14
ultra / 1080p
14−16
10−12
QHD / 1440p
1−2
0−1
low / 720p
35−40
27−30
medium / 1080p
18−20
14−16
The average gaming FPS of Radeon HD 7770 in Battlefield 5 is 37% more, than Radeon HD 8870M.
low / 768p
45−50
45−50
high / 1080p
−
45−50
QHD / 1440p
0−1
0−1
Radeon HD 7770 and Radeon HD 8870M have the same average FPS in Call of Duty: Warzone.
low / 768p
170−180
140−150
medium / 768p
140−150
110−120
ultra / 1080p
75−80
55−60
QHD / 1440p
40−45
30−35
4K / 2160p
30−33
27−30
high / 768p
110−120
85−90
The average gaming FPS of Radeon HD 7770 in Counter-Strike: Global Offensive is 25% more, than Radeon HD 8870M.
low / 768p
55−60
55−60
ultra / 1080p
27−30
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 7770 in Cyberpunk 2077 is 4% more, than Radeon HD 8870M.
low / 768p
95−100
85−90
medium / 768p
75−80
60−65
ultra / 1080p
45−50
35−40
The average gaming FPS of Radeon HD 7770 in Dota 2 is 19% more, than Radeon HD 8870M.
high / 1080p
12−14
9−10
ultra / 1080p
10−12
8−9
4K / 2160p
5−6
4−5
low / 720p
27−30
21−24
medium / 1080p
12−14
10−11
The average gaming FPS of Radeon HD 7770 in Far Cry 5 is 27% more, than Radeon HD 8870M.
high / 1080p
18−20
16−18
ultra / 1080p
14−16
10−12
low / 720p
80−85
65−70
medium / 1080p
35−40
24−27
The average gaming FPS of Radeon HD 7770 in Fortnite is 26% more, than Radeon HD 8870M.
high / 1080p
18−20
12−14
ultra / 1080p
14−16
12−14
QHD / 1440p
5−6
2−3
low / 720p
35−40
27−30
medium / 1080p
21−24
14−16
The average gaming FPS of Radeon HD 7770 in Forza Horizon 4 is 35% more, than Radeon HD 8870M.
low / 768p
65−70
55−60
medium / 768p
60−65
45−50
high / 1080p
21−24
14−16
ultra / 1080p
9−10
7−8
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7770 in Grand Theft Auto V is 29% more, than Radeon HD 8870M.
high / 1080p
7−8
5−6
ultra / 1080p
5−6
3−4
4K / 2160p
1−2
0−1
low / 720p
20−22
14−16
medium / 1080p
9−10
7−8
The average gaming FPS of Radeon HD 7770 in Metro Exodus is 42% more, than Radeon HD 8870M.
low / 768p
100−110
95−100
high / 1080p
−
90−95
ultra / 1080p
90−95
80−85
medium / 1080p
100−105
95−100
The average gaming FPS of Radeon HD 7770 in Minecraft is 8% more, than Radeon HD 8870M.
high / 1080p
18−20
16−18
ultra / 1080p
16−18
14−16
low / 720p
45−50
35−40
medium / 1080p
21−24
18−20
The average gaming FPS of Radeon HD 7770 in PLAYERUNKNOWN'S BATTLEGROUNDS is 18% more, than Radeon HD 8870M.
high / 1080p
12−14
−
ultra / 1080p
8−9
8−9
QHD / 1440p
0−1
0−1
low / 720p
20−22
14−16
medium / 1080p
12−14
10−12
The average gaming FPS of Radeon HD 7770 in Red Dead Redemption 2 is 27% more, than Radeon HD 8870M.
low / 768p
35−40
27−30
medium / 768p
24−27
18−20
high / 1080p
14−16
10−11
ultra / 1080p
8−9
7−8
4K / 2160p
7−8
6−7
The average gaming FPS of Radeon HD 7770 in The Witcher 3: Wild Hunt is 28% more, than Radeon HD 8870M.
low / 768p
95−100
85−90
medium / 768p
55−60
45−50
ultra / 1080p
27−30
21−24
high / 768p
45−50
35−40
The average gaming FPS of Radeon HD 7770 in World of Tanks is 18% more, than Radeon HD 8870M.
Full Specs
Radeon HD 7770
Radeon HD 8870M
Architecture
GCN
GCN
Code name
Cape Verde
Venus
Type
Desktop
Laptop
Release date
15 February 2012
18 December 2012
Pipelines
640
640
Core clock speed
1000 MHz
725 MHz
Boost Clock
775 MHz
Transistor count
1,500 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
31.00
Floating-point performance
992.0 gflops
Memory bus width
128 Bit
128 Bit
Memory clock speed
4500 MHz
4500 MHz
Memory bandwidth
72 GB/s
Shared memory
-
-
DirectX
DirectX 11.1, Shader 5.1
12 (11_1)
Shader Model
5.1
OpenGL
4.6
OpenCL
1.2
Vulkan
1.2.131
Bitcoin / BTC (SHA256)
156 Mh/s
107 Mh/s
Laptop size
large
Eyefinity
+
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