Radeon HD 6990M vs Radeon HD 7850
If you are going to buy a new graphics card and are choosing between Radeon HD 6990M and Radeon HD 7850, 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 6990M stacks up against Radeon HD 7850, check out specs charts below.
Radeon HD 6990M is a Laptop Graphics Card
Note: Radeon HD 6990M 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 6990M here:
Main Specs
Radeon HD 6990M
Radeon HD 7850
Power consumption (TDP)
100 Watt
225 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
None
1x 6-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
1x DVI, 1x HDMI, 2x mini-DisplayPort
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Radeon HD 7850 has 125% more power consumption, than Radeon HD 6990M.
Radeon HD 6990M is connected by MXM-B (3.0), and Radeon HD 7850 uses PCIe 3.0 x16 interface.
Radeon HD 6990M and Radeon HD 7850 have maximum RAM of 2 GB.
Radeon HD 6990M is used in Laptops, and Radeon HD 7850 - in Desktops.
Radeon HD 6990M is build with Terascale 2 architecture, and Radeon HD 7850 - with GCN 1.0.
Radeon HD 6990M is manufactured by 40 nm process technology, and Radeon HD 7850 - by 28 nm process technology.
Memory clock speed of Radeon HD 7850 is 300 MHz higher, than Radeon HD 6990M.
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
14−16
18−20
ultra / 1080p
8−9
10−12
QHD / 1440p
3−4
5−6
4K / 2160p
−
4−5
low / 720p
30−33
35−40
medium / 1080p
16−18
24−27
The average gaming FPS of Radeon HD 7850 in Assassin's Creed Odyssey is 26% more, than Radeon HD 6990M.
high / 1080p
21−24
30−33
ultra / 1080p
18−20
24−27
QHD / 1440p
6−7
10−11
4K / 2160p
5−6
7−8
low / 720p
45−50
60−65
medium / 1080p
24−27
30−35
The average gaming FPS of Radeon HD 7850 in Battlefield 5 is 33% more, than Radeon HD 6990M.
low / 768p
45−50
50−55
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7850 in Call of Duty: Warzone is 10% more, than Radeon HD 6990M.
low / 768p
200−210
220−230
medium / 768p
170−180
190−200
ultra / 1080p
90−95
110−120
QHD / 1440p
50−55
80−85
4K / 2160p
30−33
40−45
high / 768p
130−140
160−170
The average gaming FPS of Radeon HD 7850 in Counter-Strike: Global Offensive is 19% more, than Radeon HD 6990M.
low / 768p
55−60
60−65
ultra / 1080p
35−40
45−50
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon HD 7850 in Cyberpunk 2077 is 17% more, than Radeon HD 6990M.
low / 768p
100−110
110−120
medium / 768p
90−95
100−110
ultra / 1080p
60−65
75−80
The average gaming FPS of Radeon HD 7850 in Dota 2 is 15% more, than Radeon HD 6990M.
high / 1080p
16−18
21−24
ultra / 1080p
14−16
21−24
QHD / 1440p
−
18−20
4K / 2160p
6−7
7−8
low / 720p
35−40
50−55
medium / 1080p
18−20
24−27
The average gaming FPS of Radeon HD 7850 in Far Cry 5 is 36% more, than Radeon HD 6990M.
high / 1080p
24−27
30−35
ultra / 1080p
18−20
21−24
QHD / 1440p
16−18
14−16
low / 720p
95−100
110−120
medium / 1080p
50−55
65−70
The average gaming FPS of Radeon HD 7850 in Fortnite is 19% more, than Radeon HD 6990M.
high / 1080p
24−27
30−35
ultra / 1080p
18−20
24−27
QHD / 1440p
8−9
12−14
4K / 2160p
−
12−14
low / 720p
50−55
65−70
medium / 1080p
27−30
35−40
The average gaming FPS of Radeon HD 7850 in Forza Horizon 4 is 34% more, than Radeon HD 6990M.
low / 768p
80−85
100−105
medium / 768p
70−75
90−95
high / 1080p
27−30
35−40
ultra / 1080p
10−12
14−16
QHD / 1440p
2−3
6−7
The average gaming FPS of Radeon HD 7850 in Grand Theft Auto V is 28% more, than Radeon HD 6990M.
high / 1080p
9−10
12−14
ultra / 1080p
7−8
9−10
4K / 2160p
2−3
2−3
low / 720p
27−30
35−40
medium / 1080p
12−14
16−18
The average gaming FPS of Radeon HD 7850 in Metro Exodus is 25% more, than Radeon HD 6990M.
low / 768p
110−120
110−120
ultra / 1080p
100−110
−
medium / 1080p
100−110
110−120
The average gaming FPS of Radeon HD 7850 in Minecraft is 4% more, than Radeon HD 6990M.
high / 1080p
21−24
−
ultra / 1080p
16−18
14−16
low / 720p
55−60
65−70
medium / 1080p
24−27
18−20
Radeon HD 6990M and Radeon HD 7850 have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
high / 1080p
14−16
14−16
ultra / 1080p
9−10
10−11
QHD / 1440p
0−1
1−2
4K / 2160p
−
0−1
low / 720p
27−30
35−40
medium / 1080p
16−18
20−22
The average gaming FPS of Radeon HD 7850 in Red Dead Redemption 2 is 23% more, than Radeon HD 6990M.
low / 768p
50−55
70−75
medium / 768p
30−35
40−45
high / 1080p
18−20
24−27
ultra / 1080p
10−11
12−14
4K / 2160p
8−9
7−8
The average gaming FPS of Radeon HD 7850 in The Witcher 3: Wild Hunt is 33% more, than Radeon HD 6990M.
low / 768p
100−105
90−95
medium / 768p
60−65
60−65
ultra / 1080p
30−35
40−45
high / 768p
50−55
55−60
The average gaming FPS of Radeon HD 7850 in World of Tanks is 1% more, than Radeon HD 6990M.
Full Specs
Radeon HD 6990M
Radeon HD 7850
Architecture
Terascale 2
GCN 1.0
Code name
Blackcomb XTX
Pitcairn
Type
Laptop
Desktop
Release date
12 July 2011
5 March 2012
Pipelines
1120
1024
Core clock speed
715 MHz
Boost Clock
1000 MHz
Transistor count
1,700 million
2,800 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
40.04
55.04
Floating-point performance
1,601.6 gflops
1,761 gflops
Length
210 mm
Memory bus width
256 Bit
256 Bit
Memory clock speed
900 MHz
1200 MHz
Memory bandwidth
115.2 GB/s
153.6 GB/s
Shared memory
-
DirectX
11.2 (11_0)
Shader Model
5.0
5.1
OpenGL
4.4
4.6
OpenCL
1.2
1.2
Vulkan
N/A
FreeSync
+
Bus support
PCIe 2.1 x16
HDMI
+
Bitcoin / BTC (SHA256)
249 Mh/s
Laptop size
large
Eyefinity
+
Design
reference
CrossFire
+
Ethereum / ETH (DaggerHashimoto)
12.5 Mh/s
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