Mobility Radeon HD 4850 vs Radeon HD 6990M
If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4850 and Radeon HD 6990M, 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 4850 stacks up against Radeon HD 6990M, check out specs charts below.
Mobility Radeon HD 4850 and Radeon HD 6990M are Laptop Graphics Cards
Note: Mobility Radeon HD 4850 and Radeon HD 6990M 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 4850 or Radeon HD 6990M here:
Main Specs
Mobility Radeon HD 4850
Radeon HD 6990M
Power consumption (TDP)
100 Watt
Interface
PCIe 2.0 x16
MXM-B (3.0)
Supplementary power connectors
None
Memory type
GDDR3
GDDR5
Maximum RAM amount
1 GB
2 GB
Display Connectors
No outputs
No outputs
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Mobility Radeon HD 4850 is connected by PCIe 2.0 x16, and Radeon HD 6990M uses MXM-B (3.0) interface.
Radeon HD 6990M has 1 GB more memory, than Mobility Radeon HD 4850.
Both cards are used in Laptops.
Mobility Radeon HD 4850 is build with Terascale 1 architecture, and Radeon HD 6990M - with Terascale 2.
Core clock speed of Radeon HD 6990M is 215 MHz higher, than Mobility Radeon HD 4850.
Mobility Radeon HD 4850 is manufactured by 55 nm process technology, and Radeon HD 6990M - by 40 nm process technology.
Memory clock speed of Radeon HD 6990M is 50 MHz higher, than Mobility Radeon HD 4850.
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
3−4
14−16
ultra / 1080p
1−2
8−9
QHD / 1440p
0−1
3−4
low / 720p
14−16
30−33
medium / 1080p
5−6
16−18
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 200% more, than Mobility Radeon HD 4850.
high / 1080p
8−9
21−24
ultra / 1080p
6−7
18−20
QHD / 1440p
0−1
6−7
4K / 2160p
−
5−6
low / 720p
18−20
45−50
medium / 1080p
8−9
24−27
The average gaming FPS of Radeon HD 6990M in Battlefield 5 is 180% more, than Mobility Radeon HD 4850.
low / 768p
50−55
45−50
high / 1080p
40−45
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Mobility Radeon HD 4850 in Call of Duty: Warzone is 10% more, than Radeon HD 6990M.
low / 768p
130−140
200−210
medium / 768p
100−110
170−180
ultra / 1080p
45−50
90−95
QHD / 1440p
24−27
50−55
4K / 2160p
18−20
30−33
high / 768p
75−80
130−140
The average gaming FPS of Radeon HD 6990M in Counter-Strike: Global Offensive is 69% more, than Mobility Radeon HD 4850.
low / 768p
65−70
55−60
ultra / 1080p
21−24
35−40
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6990M in Cyberpunk 2077 is 4% more, than Mobility Radeon HD 4850.
low / 768p
75−80
100−110
medium / 768p
50−55
90−95
ultra / 1080p
24−27
60−65
The average gaming FPS of Radeon HD 6990M in Dota 2 is 68% more, than Mobility Radeon HD 4850.
high / 1080p
4−5
16−18
ultra / 1080p
4−5
14−16
4K / 2160p
2−3
6−7
low / 720p
14−16
35−40
medium / 1080p
5−6
18−20
The average gaming FPS of Radeon HD 6990M in Far Cry 5 is 216% more, than Mobility Radeon HD 4850.
high / 1080p
12−14
24−27
ultra / 1080p
7−8
18−20
QHD / 1440p
4−5
16−18
low / 720p
55−60
95−100
medium / 1080p
14−16
50−55
The average gaming FPS of Radeon HD 6990M in Fortnite is 121% more, than Mobility Radeon HD 4850.
high / 1080p
7−8
24−27
ultra / 1080p
−
18−20
QHD / 1440p
4−5
8−9
4K / 2160p
3−4
−
low / 720p
21−24
50−55
medium / 1080p
10−11
27−30
The average gaming FPS of Radeon HD 6990M in Forza Horizon 4 is 154% more, than Mobility Radeon HD 4850.
low / 768p
50−55
80−85
medium / 768p
−
70−75
high / 1080p
7−8
27−30
ultra / 1080p
3−4
10−12
QHD / 1440p
0−1
2−3
medium / 720p
40−45
−
The average gaming FPS of Radeon HD 6990M in Grand Theft Auto V is 90% more, than Mobility Radeon HD 4850.
high / 1080p
2−3
9−10
ultra / 1080p
1−2
7−8
4K / 2160p
0−1
2−3
low / 720p
7−8
27−30
medium / 1080p
4−5
12−14
The average gaming FPS of Radeon HD 6990M in Metro Exodus is 250% more, than Mobility Radeon HD 4850.
low / 768p
90−95
110−120
high / 1080p
85−90
−
ultra / 1080p
85−90
100−110
4K / 2160p
75−80
−
medium / 1080p
−
100−110
The average gaming FPS of Radeon HD 6990M in Minecraft is 22% more, than Mobility Radeon HD 4850.
high / 1080p
−
21−24
ultra / 1080p
12−14
16−18
low / 720p
30−35
55−60
medium / 1080p
14−16
24−27
The average gaming FPS of Radeon HD 6990M in PLAYERUNKNOWN'S BATTLEGROUNDS is 65% more, than Mobility Radeon HD 4850.
high / 1080p
−
14−16
ultra / 1080p
7−8
9−10
QHD / 1440p
−
0−1
low / 720p
8−9
27−30
medium / 1080p
8−9
16−18
The average gaming FPS of Radeon HD 6990M in Red Dead Redemption 2 is 125% more, than Mobility Radeon HD 4850.
low / 768p
14−16
50−55
medium / 768p
10−11
30−35
high / 1080p
5−6
18−20
ultra / 1080p
4−5
10−11
4K / 2160p
2−3
8−9
The average gaming FPS of Radeon HD 6990M in The Witcher 3: Wild Hunt is 242% more, than Mobility Radeon HD 4850.
low / 768p
80−85
100−105
medium / 768p
40−45
60−65
ultra / 1080p
16−18
30−35
high / 768p
30−35
50−55
The average gaming FPS of Radeon HD 6990M in World of Tanks is 44% more, than Mobility Radeon HD 4850.
Full Specs
Mobility Radeon HD 4850
Radeon HD 6990M
Architecture
Terascale 1
Terascale 2
Code name
M98
Blackcomb XTX
Type
Laptop
Laptop
Release date
9 January 2009
12 July 2011
Pipelines
800
1120
Core clock speed
500 MHz
715 MHz
Transistor count
956 million
1,700 million
Manufacturing process technology
55 nm
40 nm
Texture fill rate
20.00
40.04
Floating-point performance
800.0 gflops
1,601.6 gflops
Memory bus width
256 Bit
256 Bit
Memory clock speed
850 MHz
900 MHz
Memory bandwidth
54.4 GB/s
115.2 GB/s
Shared memory
-
-
DirectX
10.1 (10_1)
11.2 (11_0)
Shader Model
4.1
5.0
OpenGL
3.3
4.4
OpenCL
1.1
1.2
Vulkan
N/A
N/A
Laptop size
large
large
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