Mobility Radeon HD 4870 vs Radeon HD 6850
If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4870 and Radeon HD 6850, 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 6850, 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 6850
Power consumption (TDP)
127 Watt
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Display Connectors
No outputs
2x DVI, 1x HDMI, 2x mini-DisplayPort
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Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
Mobility Radeon HD 4870 and Radeon HD 6850 have maximum RAM of 1 GB.
Mobility Radeon HD 4870 is used in Laptops, and Radeon HD 6850 - in Desktops.
Mobility Radeon HD 4870 is build with Terascale 1 architecture, and Radeon HD 6850 - with TeraScale 2.
Mobility Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon HD 6850 - by 40 nm process technology.
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
9−10
ultra / 1080p
4−5
5−6
QHD / 1440p
0−1
0−1
low / 720p
16−18
21−24
medium / 1080p
8−9
12−14
The average gaming FPS of Radeon HD 6850 in Assassin's Creed Odyssey is 33% more, than Mobility Radeon HD 4870.
high / 1080p
12−14
16−18
ultra / 1080p
10−11
14−16
QHD / 1440p
0−1
0−1
low / 720p
24−27
35−40
medium / 1080p
12−14
16−18
The average gaming FPS of Radeon HD 6850 in Battlefield 5 is 40% 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 6850 have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
160−170
medium / 768p
110−120
130−140
ultra / 1080p
55−60
70−75
QHD / 1440p
30−33
40−45
4K / 2160p
27−30
30−33
high / 768p
80−85
100−110
The average gaming FPS of Radeon HD 6850 in Counter-Strike: Global Offensive is 19% more, than Mobility Radeon HD 4870.
low / 768p
55−60
55−60
ultra / 1080p
20−22
27−30
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6850 in Cyberpunk 2077 is 4% more, than Mobility Radeon HD 4870.
low / 768p
80−85
90−95
medium / 768p
60−65
70−75
ultra / 1080p
35−40
45−50
The average gaming FPS of Radeon HD 6850 in Dota 2 is 16% more, than Mobility Radeon HD 4870.
high / 1080p
8−9
10−12
ultra / 1080p
8−9
10−11
4K / 2160p
3−4
4−5
low / 720p
18−20
24−27
medium / 1080p
9−10
12−14
The average gaming FPS of Radeon HD 6850 in Far Cry 5 is 33% more, than Mobility Radeon HD 4870.
high / 1080p
14−16
18−20
ultra / 1080p
10−11
12−14
low / 720p
60−65
75−80
medium / 1080p
24−27
30−35
The average gaming FPS of Radeon HD 6850 in Fortnite is 25% more, than Mobility Radeon HD 4870.
high / 1080p
12−14
16−18
ultra / 1080p
10−12
14−16
QHD / 1440p
1−2
4−5
low / 720p
27−30
35−40
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon HD 6850 in Forza Horizon 4 is 38% more, than Mobility Radeon HD 4870.
low / 768p
50−55
65−70
medium / 768p
45−50
55−60
high / 1080p
12−14
18−20
ultra / 1080p
6−7
8−9
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 6850 in Grand Theft Auto V is 31% more, than Mobility Radeon HD 4870.
high / 1080p
5−6
6−7
ultra / 1080p
3−4
4−5
4K / 2160p
0−1
1−2
low / 720p
12−14
18−20
medium / 1080p
6−7
8−9
The average gaming FPS of Radeon HD 6850 in Metro Exodus is 28% more, than Mobility Radeon HD 4870.
low / 768p
95−100
100−110
high / 1080p
90−95
−
ultra / 1080p
80−85
90−95
medium / 1080p
90−95
95−100
The average gaming FPS of Radeon HD 6850 in Minecraft is 8% more, than Mobility Radeon HD 4870.
high / 1080p
16−18
18−20
ultra / 1080p
14−16
14−16
low / 720p
30−35
40−45
medium / 1080p
18−20
20−22
The average gaming FPS of Radeon HD 6850 in PLAYERUNKNOWN'S BATTLEGROUNDS is 20% more, than Mobility Radeon HD 4870.
high / 1080p
−
12−14
ultra / 1080p
7−8
8−9
QHD / 1440p
0−1
0−1
low / 720p
12−14
18−20
medium / 1080p
10−12
12−14
The average gaming FPS of Radeon HD 6850 in Red Dead Redemption 2 is 30% more, than Mobility Radeon HD 4870.
low / 768p
24−27
35−40
medium / 768p
16−18
21−24
high / 1080p
9−10
12−14
ultra / 1080p
6−7
8−9
4K / 2160p
6−7
7−8
The average gaming FPS of Radeon HD 6850 in The Witcher 3: Wild Hunt is 30% more, than Mobility Radeon HD 4870.
low / 768p
85−90
90−95
medium / 768p
45−50
50−55
ultra / 1080p
20−22
24−27
high / 768p
35−40
40−45
The average gaming FPS of Radeon HD 6850 in World of Tanks is 10% more, than Mobility Radeon HD 4870.
Full Specs
Mobility Radeon HD 4870
Radeon HD 6850
Architecture
Terascale 1
TeraScale 2
Code name
M98-XT
Barts
Type
Laptop
Desktop
Release date
9 January 2009
21 October 2010
Pipelines
800
960
Core clock speed
550 MHz
Transistor count
956 million
1,700 million
Manufacturing process technology
55 nm
40 nm
Texture fill rate
22.00
37.20
Floating-point performance
880.0 gflops
1,488.0 gflops
Length
198 mm
Memory bus width
256 Bit
256 Bit
Memory clock speed
888 MHz
Memory bandwidth
56.83 GB/s
128.0 GB/s
Shared memory
-
DirectX
10.1 (10_1)
Shader Model
4.1
5.0
OpenGL
3.3
4.4
OpenCL
1.1
1.2
Vulkan
N/A
Bus support
AGP
Bitcoin / BTC (SHA256)
139 Mh/s
Laptop size
large
Eyefinity
+
Design
reference
CrossFire
+
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