Mobility Radeon HD 4870 vs Radeon HD 6970M Crossfire
If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4870 and Radeon HD 6970M Crossfire, 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 6970M Crossfire, check out specs charts below.
Mobility Radeon HD 4870 and Radeon HD 6970M Crossfire are Laptop Graphics Cards
Note: Mobility Radeon HD 4870 and Radeon HD 6970M Crossfire 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 6970M Crossfire here:
Main Specs
Mobility Radeon HD 4870
Radeon HD 6970M Crossfire
Interface
PCIe 2.0 x16
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2x2 GB
Display Connectors
No outputs
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Radeon HD 6970M Crossfire 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 6970M Crossfire - with Terascale 2.
Core clock speed of Radeon HD 6970M Crossfire is 130 MHz higher, than Mobility Radeon HD 4870.
Mobility Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon HD 6970M Crossfire - by 40 nm process technology.
Memory clock speed of Radeon HD 6970M Crossfire is 12 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
21−24
ultra / 1080p
4−5
12−14
QHD / 1440p
0−1
7−8
4K / 2160p
−
5−6
low / 720p
16−18
40−45
medium / 1080p
8−9
24−27
The average gaming FPS of Radeon HD 6970M Crossfire in Assassin's Creed Odyssey is 177% more, than Mobility Radeon HD 4870.
high / 1080p
12−14
30−35
ultra / 1080p
10−11
27−30
QHD / 1440p
0−1
12−14
4K / 2160p
−
8−9
low / 720p
24−27
70−75
medium / 1080p
12−14
35−40
The average gaming FPS of Radeon HD 6970M Crossfire in Battlefield 5 is 180% more, than Mobility Radeon HD 4870.
low / 768p
45−50
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 6970M Crossfire in Call of Duty: Warzone is 10% more, than Mobility Radeon HD 4870.
low / 768p
140−150
230−240
medium / 768p
110−120
200−210
ultra / 1080p
55−60
120−130
QHD / 1440p
30−33
95−100
4K / 2160p
27−30
50−55
high / 768p
80−85
170−180
The average gaming FPS of Radeon HD 6970M Crossfire in Counter-Strike: Global Offensive is 94% more, than Mobility Radeon HD 4870.
low / 768p
55−60
60−65
ultra / 1080p
20−22
50−55
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon HD 6970M Crossfire in Cyberpunk 2077 is 35% more, than Mobility Radeon HD 4870.
low / 768p
80−85
120−130
medium / 768p
60−65
100−110
ultra / 1080p
35−40
80−85
The average gaming FPS of Radeon HD 6970M Crossfire in Dota 2 is 73% more, than Mobility Radeon HD 4870.
high / 1080p
8−9
24−27
ultra / 1080p
8−9
21−24
QHD / 1440p
−
20−22
4K / 2160p
3−4
8−9
low / 720p
18−20
50−55
medium / 1080p
9−10
27−30
The average gaming FPS of Radeon HD 6970M Crossfire in Far Cry 5 is 200% more, than Mobility Radeon HD 4870.
high / 1080p
14−16
30−35
ultra / 1080p
10−11
24−27
QHD / 1440p
−
16−18
low / 720p
60−65
120−130
medium / 1080p
24−27
70−75
The average gaming FPS of Radeon HD 6970M Crossfire in Fortnite is 125% more, than Mobility Radeon HD 4870.
high / 1080p
12−14
35−40
ultra / 1080p
10−12
27−30
QHD / 1440p
1−2
14−16
4K / 2160p
−
12−14
low / 720p
27−30
70−75
medium / 1080p
14−16
40−45
The average gaming FPS of Radeon HD 6970M Crossfire in Forza Horizon 4 is 200% more, than Mobility Radeon HD 4870.
low / 768p
50−55
100−110
medium / 768p
45−50
95−100
high / 1080p
12−14
40−45
ultra / 1080p
6−7
16−18
QHD / 1440p
0−1
7−8
The average gaming FPS of Radeon HD 6970M Crossfire in Grand Theft Auto V is 124% more, than Mobility Radeon HD 4870.
high / 1080p
5−6
12−14
ultra / 1080p
3−4
10−11
QHD / 1440p
−
10−11
4K / 2160p
0−1
3−4
low / 720p
12−14
40−45
medium / 1080p
6−7
18−20
The average gaming FPS of Radeon HD 6970M Crossfire in Metro Exodus is 200% more, than Mobility Radeon HD 4870.
low / 768p
95−100
120−130
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
90−95
110−120
The average gaming FPS of Radeon HD 6970M Crossfire in Minecraft is 26% more, than Mobility Radeon HD 4870.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
30−35
70−75
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon HD 6970M Crossfire in PLAYERUNKNOWN'S BATTLEGROUNDS is 59% more, than Mobility Radeon HD 4870.
high / 1080p
−
16−18
ultra / 1080p
7−8
10−11
QHD / 1440p
0−1
2−3
4K / 2160p
−
1−2
low / 720p
12−14
40−45
medium / 1080p
10−12
21−24
The average gaming FPS of Radeon HD 6970M Crossfire in Red Dead Redemption 2 is 150% more, than Mobility Radeon HD 4870.
low / 768p
24−27
75−80
medium / 768p
16−18
45−50
high / 1080p
9−10
24−27
ultra / 1080p
6−7
14−16
4K / 2160p
6−7
8−9
The average gaming FPS of Radeon HD 6970M Crossfire in The Witcher 3: Wild Hunt is 161% more, than Mobility Radeon HD 4870.
low / 768p
85−90
90−95
medium / 768p
45−50
60−65
ultra / 1080p
20−22
40−45
high / 768p
35−40
55−60
The average gaming FPS of Radeon HD 6970M Crossfire in World of Tanks is 31% more, than Mobility Radeon HD 4870.
Full Specs
Mobility Radeon HD 4870
Radeon HD 6970M Crossfire
Architecture
Terascale 1
Terascale 2
Code name
M98-XT
Blackcomb XT
Type
Laptop
Laptop
Release date
9 January 2009
6 January 2011
Pipelines
800
1920
Core clock speed
550 MHz
680 MHz
Transistor count
956 million
2x1700 Million
Manufacturing process technology
55 nm
40 nm
Texture fill rate
22.00
Floating-point performance
880.0 gflops
Memory bus width
256 Bit
256 Bit
Memory clock speed
888 MHz
900 MHz
Memory bandwidth
56.83 GB/s
Shared memory
-
-
DirectX
10.1 (10_1)
DirectX 11, Shader 5.0
Shader Model
4.1
OpenGL
3.3
OpenCL
1.1
Vulkan
N/A
Laptop size
large
large
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