Radeon HD 6990M vs Radeon RX 640
Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990M and Radeon RX 640. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6990M and Radeon RX 640. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
Radeon HD 6990M and Radeon RX 640 are Laptop Graphics Cards
Note: Radeon HD 6990M and Radeon RX 640 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 Radeon HD 6990M or Radeon RX 640 here:
Main Specs
Radeon HD 6990M
Radeon RX 640
Power consumption (TDP)
100 Watt
50 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
None
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
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Radeon HD 6990M has 100% more power consumption, than Radeon RX 640.
Radeon HD 6990M is connected by MXM-B (3.0), and Radeon RX 640 uses PCIe 3.0 x8 interface.
Radeon RX 640 has 2 GB more memory, than Radeon HD 6990M.
Both cards are used in Laptops.
Radeon HD 6990M is build with Terascale 2 architecture, and Radeon RX 640 - with Polaris.
Core clock speed of Radeon RX 640 is 503 MHz higher, than Radeon HD 6990M.
Radeon HD 6990M is manufactured by 40 nm process technology, and Radeon RX 640 - by 14 nm process technology.
Memory clock speed of Radeon RX 640 is 5100 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
5−6
ultra / 1080p
8−9
3−4
QHD / 1440p
3−4
2−3
low / 720p
30−33
16−18
medium / 1080p
16−18
7−8
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 114% more, than Radeon RX 640.
high / 1080p
21−24
10−12
ultra / 1080p
18−20
8−9
QHD / 1440p
6−7
0−1
4K / 2160p
5−6
−
low / 720p
45−50
24−27
medium / 1080p
24−27
10−12
The average gaming FPS of Radeon HD 6990M in Battlefield 5 is 100% more, than Radeon RX 640.
low / 768p
45−50
45−50
high / 1080p
−
40−45
QHD / 1440p
0−1
0−1
Radeon HD 6990M and Radeon RX 640 have the same average FPS in Call of Duty: Warzone.
low / 768p
200−210
130−140
medium / 768p
170−180
100−110
ultra / 1080p
90−95
50−55
QHD / 1440p
50−55
27−30
4K / 2160p
30−33
12−14
high / 768p
130−140
80−85
The average gaming FPS of Radeon HD 6990M in Counter-Strike: Global Offensive is 66% more, than Radeon RX 640.
low / 768p
55−60
50−55
ultra / 1080p
35−40
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6990M in Cyberpunk 2077 is 20% more, than Radeon RX 640.
low / 768p
100−110
80−85
medium / 768p
90−95
55−60
ultra / 1080p
60−65
30−35
The average gaming FPS of Radeon HD 6990M in Dota 2 is 50% more, than Radeon RX 640.
high / 1080p
16−18
7−8
ultra / 1080p
14−16
5−6
4K / 2160p
6−7
5−6
low / 720p
35−40
18−20
medium / 1080p
18−20
8−9
The average gaming FPS of Radeon HD 6990M in Far Cry 5 is 111% more, than Radeon RX 640.
high / 1080p
24−27
7−8
ultra / 1080p
18−20
0−1
QHD / 1440p
16−18
0−1
low / 720p
95−100
60−65
medium / 1080p
50−55
18−20
The average gaming FPS of Radeon HD 6990M in Fortnite is 100% more, than Radeon RX 640.
high / 1080p
24−27
10−11
ultra / 1080p
18−20
−
QHD / 1440p
8−9
−
4K / 2160p
−
8−9
low / 720p
50−55
24−27
medium / 1080p
27−30
12−14
The average gaming FPS of Radeon HD 6990M in Forza Horizon 4 is 118% more, than Radeon RX 640.
low / 768p
80−85
50−55
medium / 768p
70−75
−
high / 1080p
27−30
10−12
ultra / 1080p
10−12
5−6
QHD / 1440p
2−3
−
medium / 720p
−
45−50
The average gaming FPS of Radeon HD 6990M in Grand Theft Auto V is 73% more, than Radeon RX 640.
high / 1080p
9−10
3−4
ultra / 1080p
7−8
1−2
4K / 2160p
2−3
−
low / 720p
27−30
10−11
medium / 1080p
12−14
5−6
The average gaming FPS of Radeon HD 6990M in Metro Exodus is 180% more, than Radeon RX 640.
low / 768p
110−120
90−95
ultra / 1080p
100−110
80−85
medium / 1080p
100−110
−
The average gaming FPS of Radeon HD 6990M in Minecraft is 26% more, than Radeon RX 640.
high / 1080p
21−24
6−7
ultra / 1080p
16−18
2−3
4K / 2160p
−
0−1
low / 720p
55−60
27−30
medium / 1080p
24−27
10−11
The average gaming FPS of Radeon HD 6990M in PLAYERUNKNOWN'S BATTLEGROUNDS is 150% more, than Radeon RX 640.
high / 1080p
14−16
−
ultra / 1080p
9−10
−
QHD / 1440p
0−1
−
low / 720p
27−30
10−12
medium / 1080p
16−18
9−10
The average gaming FPS of Radeon HD 6990M in Red Dead Redemption 2 is 120% more, than Radeon RX 640.
low / 768p
50−55
21−24
medium / 768p
30−35
14−16
high / 1080p
18−20
6−7
ultra / 1080p
10−11
4−5
4K / 2160p
8−9
3−4
The average gaming FPS of Radeon HD 6990M in The Witcher 3: Wild Hunt is 140% more, than Radeon RX 640.
low / 768p
100−105
75−80
medium / 768p
60−65
40−45
ultra / 1080p
30−35
18−20
high / 768p
50−55
35−40
The average gaming FPS of Radeon HD 6990M in World of Tanks is 40% more, than Radeon RX 640.
Full Specs
Radeon HD 6990M
Radeon RX 640
Architecture
Terascale 2
Polaris
Code name
Blackcomb XTX
Polaris 12
Type
Laptop
Laptop
Release date
12 July 2011
12 August 2019
Pipelines
1120
640
Core clock speed
715 MHz
1218 MHz
Boost Clock
1218 MHz
Transistor count
1,700 million
2,200 million
Manufacturing process technology
40 nm
14 nm
Texture fill rate
40.04
38.98
Floating-point performance
1,601.6 gflops
Memory bus width
256 Bit
64 Bit
Memory clock speed
900 MHz
6000 MHz
Memory bandwidth
115.2 GB/s
112.0 GB/s
Shared memory
-
-
DirectX
11.2 (11_0)
12 (12_0)
Shader Model
5.0
6.4
OpenGL
4.4
4.6
OpenCL
1.2
2.0
Vulkan
N/A
1.2.131
FreeSync
+
Laptop size
large
large
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