Radeon HD 6990M vs Radeon R7 250X
If you are going to buy a new graphics card and are choosing between Radeon HD 6990M and Radeon R7 250X, 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 R7 250X, 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 R7 250X
Power consumption (TDP)
100 Watt
80 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
None
1 x 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 6990M has 25% more power consumption, than Radeon R7 250X.
Radeon HD 6990M is connected by MXM-B (3.0), and Radeon R7 250X uses PCIe 3.0 x16 interface.
Radeon HD 6990M and Radeon R7 250X have maximum RAM of 2 GB.
Radeon HD 6990M is used in Laptops, and Radeon R7 250X - in Desktops.
Radeon HD 6990M is build with Terascale 2 architecture, and Radeon R7 250X - with GCN 1.0.
Radeon HD 6990M is manufactured by 40 nm process technology, and Radeon R7 250X - by 28 nm process technology.
Memory clock speed of Radeon R7 250X is 725 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
10−12
ultra / 1080p
8−9
6−7
QHD / 1440p
3−4
1−2
low / 720p
30−33
24−27
medium / 1080p
16−18
14−16
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 36% more, than Radeon R7 250X.
high / 1080p
21−24
18−20
ultra / 1080p
18−20
16−18
QHD / 1440p
6−7
2−3
4K / 2160p
5−6
−
low / 720p
45−50
40−45
medium / 1080p
24−27
20−22
The average gaming FPS of Radeon HD 6990M in Battlefield 5 is 20% more, than Radeon R7 250X.
low / 768p
45−50
45−50
QHD / 1440p
0−1
0−1
Radeon HD 6990M and Radeon R7 250X have the same average FPS in Call of Duty: Warzone.
low / 768p
200−210
180−190
medium / 768p
170−180
150−160
ultra / 1080p
90−95
75−80
QHD / 1440p
50−55
45−50
4K / 2160p
30−33
30−33
high / 768p
130−140
110−120
The average gaming FPS of Radeon HD 6990M in Counter-Strike: Global Offensive is 13% more, than Radeon R7 250X.
low / 768p
55−60
55−60
ultra / 1080p
35−40
30−35
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6990M in Cyberpunk 2077 is 4% more, than Radeon R7 250X.
low / 768p
100−110
95−100
medium / 768p
90−95
80−85
ultra / 1080p
60−65
50−55
The average gaming FPS of Radeon HD 6990M in Dota 2 is 11% more, than Radeon R7 250X.
high / 1080p
16−18
12−14
ultra / 1080p
14−16
12−14
4K / 2160p
6−7
5−6
low / 720p
35−40
30−33
medium / 1080p
18−20
14−16
The average gaming FPS of Radeon HD 6990M in Far Cry 5 is 26% more, than Radeon R7 250X.
high / 1080p
24−27
20−22
ultra / 1080p
18−20
14−16
QHD / 1440p
16−18
−
low / 720p
95−100
80−85
medium / 1080p
50−55
40−45
The average gaming FPS of Radeon HD 6990M in Fortnite is 20% more, than Radeon R7 250X.
high / 1080p
24−27
18−20
ultra / 1080p
18−20
16−18
QHD / 1440p
8−9
5−6
low / 720p
50−55
40−45
medium / 1080p
27−30
21−24
The average gaming FPS of Radeon HD 6990M in Forza Horizon 4 is 23% more, than Radeon R7 250X.
low / 768p
80−85
70−75
medium / 768p
70−75
60−65
high / 1080p
27−30
21−24
ultra / 1080p
10−12
9−10
QHD / 1440p
2−3
0−1
The average gaming FPS of Radeon HD 6990M in Grand Theft Auto V is 17% more, than Radeon R7 250X.
high / 1080p
9−10
7−8
ultra / 1080p
7−8
5−6
4K / 2160p
2−3
1−2
low / 720p
27−30
21−24
medium / 1080p
12−14
10−11
The average gaming FPS of Radeon HD 6990M in Metro Exodus is 33% more, than Radeon R7 250X.
low / 768p
110−120
100−110
ultra / 1080p
100−110
95−100
medium / 1080p
100−110
100−110
The average gaming FPS of Radeon HD 6990M in Minecraft is 5% more, than Radeon R7 250X.
high / 1080p
21−24
20−22
ultra / 1080p
16−18
16−18
low / 720p
55−60
45−50
medium / 1080p
24−27
21−24
The average gaming FPS of Radeon HD 6990M in PLAYERUNKNOWN'S BATTLEGROUNDS is 11% more, than Radeon R7 250X.
high / 1080p
14−16
12−14
ultra / 1080p
9−10
8−9
QHD / 1440p
0−1
0−1
low / 720p
27−30
21−24
medium / 1080p
16−18
14−16
The average gaming FPS of Radeon HD 6990M in Red Dead Redemption 2 is 21% more, than Radeon R7 250X.
low / 768p
50−55
40−45
medium / 768p
30−35
24−27
high / 1080p
18−20
14−16
ultra / 1080p
10−11
9−10
4K / 2160p
8−9
7−8
The average gaming FPS of Radeon HD 6990M in The Witcher 3: Wild Hunt is 20% more, than Radeon R7 250X.
low / 768p
100−105
95−100
medium / 768p
60−65
55−60
ultra / 1080p
30−35
27−30
high / 768p
50−55
45−50
The average gaming FPS of Radeon HD 6990M in World of Tanks is 8% more, than Radeon R7 250X.
Full Specs
Radeon HD 6990M
Radeon R7 250X
Architecture
Terascale 2
GCN 1.0
Code name
Blackcomb XTX
Cape Verde
Type
Laptop
Desktop
Release date
12 July 2011
13 February 2014
Pipelines
1120
640
Core clock speed
715 MHz
Boost Clock
1000 MHz
Transistor count
1,700 million
1,500 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
40.04
38.00
Floating-point performance
1,601.6 gflops
1,216 gflops
Length
210 mm
Memory bus width
256 Bit
128 Bit
Memory clock speed
900 MHz
1625 MHz
Memory bandwidth
115.2 GB/s
96 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 3.0
HDMI
+
Bitcoin / BTC (SHA256)
152 Mh/s
Laptop size
large
Eyefinity
+
Design
reference
CrossFire
+
DDMA audio
+
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