Radeon HD 6990 vs Radeon HD 8870M
If you are going to buy a new graphics card and are choosing between Radeon HD 6990 and Radeon HD 8870M, 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 6990 stacks up against Radeon HD 8870M, check out specs charts below.
Radeon HD 8870M is a Laptop Graphics Card
Note: Radeon HD 8870M 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 8870M here:
Main Specs
Radeon HD 6990
Radeon HD 8870M
Power consumption (TDP)
375 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
Memory type
GDDR5
GDDR5, DDR3
Maximum RAM amount
2 GB
2 GB
Display Connectors
1x DVI, 4x mini-DisplayPort
No outputs
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Radeon HD 6990 is connected by PCIe 2.0 x16, and Radeon HD 8870M uses PCIe 3.0 x16 interface.
Radeon HD 6990 and Radeon HD 8870M have maximum RAM of 2 GB.
Radeon HD 6990 is used in Desktops, and Radeon HD 8870M - in Laptops.
Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon HD 8870M - with GCN.
Core clock speed of Radeon HD 6990 is 105 MHz higher, than Radeon HD 8870M.
Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon HD 8870M - by 28 nm process technology.
Memory clock speed of Radeon HD 6990 is 500 MHz higher, than Radeon HD 8870M.
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
7−8
ultra / 1080p
9−10
4−5
QHD / 1440p
3−4
0−1
low / 720p
30−35
18−20
medium / 1080p
18−20
9−10
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 90% more, than Radeon HD 8870M.
high / 1080p
24−27
12−14
ultra / 1080p
21−24
10−12
QHD / 1440p
7−8
0−1
4K / 2160p
5−6
−
low / 720p
50−55
27−30
medium / 1080p
27−30
14−16
The average gaming FPS of Radeon HD 6990 in Battlefield 5 is 100% more, than Radeon HD 8870M.
low / 768p
45−50
45−50
high / 1080p
−
45−50
QHD / 1440p
0−1
0−1
Radeon HD 6990 and Radeon HD 8870M have the same average FPS in Call of Duty: Warzone.
low / 768p
210−220
140−150
medium / 768p
170−180
110−120
ultra / 1080p
95−100
55−60
QHD / 1440p
50−55
30−35
4K / 2160p
30−33
27−30
high / 768p
140−150
85−90
The average gaming FPS of Radeon HD 6990 in Counter-Strike: Global Offensive is 54% more, than Radeon HD 8870M.
low / 768p
55−60
55−60
ultra / 1080p
40−45
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6990 in Cyberpunk 2077 is 16% more, than Radeon HD 8870M.
low / 768p
110−120
85−90
medium / 768p
90−95
60−65
ultra / 1080p
60−65
35−40
The average gaming FPS of Radeon HD 6990 in Dota 2 is 45% more, than Radeon HD 8870M.
high / 1080p
18−20
9−10
ultra / 1080p
16−18
8−9
4K / 2160p
6−7
4−5
low / 720p
35−40
21−24
medium / 1080p
18−20
10−11
The average gaming FPS of Radeon HD 6990 in Far Cry 5 is 72% more, than Radeon HD 8870M.
high / 1080p
24−27
16−18
ultra / 1080p
18−20
10−12
QHD / 1440p
16−18
−
low / 720p
95−100
65−70
medium / 1080p
50−55
24−27
The average gaming FPS of Radeon HD 6990 in Fortnite is 60% more, than Radeon HD 8870M.
high / 1080p
24−27
12−14
ultra / 1080p
20−22
12−14
QHD / 1440p
9−10
2−3
low / 720p
50−55
27−30
medium / 1080p
27−30
14−16
The average gaming FPS of Radeon HD 6990 in Forza Horizon 4 is 92% more, than Radeon HD 8870M.
low / 768p
85−90
55−60
medium / 768p
75−80
45−50
high / 1080p
30−33
14−16
ultra / 1080p
12−14
7−8
QHD / 1440p
3−4
0−1
The average gaming FPS of Radeon HD 6990 in Grand Theft Auto V is 67% more, than Radeon HD 8870M.
high / 1080p
9−10
5−6
ultra / 1080p
7−8
3−4
4K / 2160p
2−3
0−1
low / 720p
27−30
14−16
medium / 1080p
12−14
7−8
The average gaming FPS of Radeon HD 6990 in Metro Exodus is 100% more, than Radeon HD 8870M.
low / 768p
110−120
95−100
high / 1080p
−
90−95
ultra / 1080p
100−110
80−85
medium / 1080p
100−110
95−100
The average gaming FPS of Radeon HD 6990 in Minecraft is 17% more, than Radeon HD 8870M.
high / 1080p
21−24
16−18
ultra / 1080p
18−20
14−16
low / 720p
55−60
35−40
medium / 1080p
24−27
18−20
The average gaming FPS of Radeon HD 6990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 40% more, than Radeon HD 8870M.
high / 1080p
14−16
−
ultra / 1080p
9−10
8−9
QHD / 1440p
0−1
0−1
low / 720p
27−30
14−16
medium / 1080p
16−18
10−12
The average gaming FPS of Radeon HD 6990 in Red Dead Redemption 2 is 63% more, than Radeon HD 8870M.
low / 768p
55−60
27−30
medium / 768p
30−35
18−20
high / 1080p
18−20
10−11
ultra / 1080p
10−12
7−8
4K / 2160p
8−9
6−7
The average gaming FPS of Radeon HD 6990 in The Witcher 3: Wild Hunt is 78% more, than Radeon HD 8870M.
low / 768p
100−110
85−90
medium / 768p
60−65
45−50
ultra / 1080p
35−40
21−24
high / 768p
50−55
35−40
The average gaming FPS of Radeon HD 6990 in World of Tanks is 33% more, than Radeon HD 8870M.
Full Specs
Radeon HD 6990
Radeon HD 8870M
Architecture
TeraScale 3
GCN
Code name
Antilles
Venus
Type
Desktop
Laptop
Release date
8 March 2011
18 December 2012
Pipelines
1536
640
Core clock speed
830 MHz
725 MHz
Boost Clock
775 MHz
Transistor count
2,640 million
1,500 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
79.68
31.00
Floating-point performance
2x 2,549.8 gflops
992.0 gflops
Length
295 mm
Memory bus width
256 Bit
128 Bit
Memory clock speed
5000 MHz
4500 MHz
Memory bandwidth
160.0 GB/s
72 GB/s
Shared memory
-
DirectX
11.2 (11_0)
12 (11_1)
Shader Model
5.0
5.1
OpenGL
4.4
4.6
OpenCL
1.2
1.2
Vulkan
N/A
1.2.131
Bitcoin / BTC (SHA256)
265 Mh/s
107 Mh/s
Laptop size
large
Ethereum / ETH (DaggerHashimoto)
24 Mh/s
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