Radeon HD 6990M vs Radeon HD 7870 XT

When choosing between Radeon HD 6990M and Radeon HD 7870 XT, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon HD 6990M and Radeon HD 7870 XT.

Radeon HD 6990M Check Price

Radeon HD 7870 XT

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:

Radeon HD 6990M Laptops

Main Specs

	Radeon HD 6990M	Radeon HD 7870 XT
Power consumption (TDP)	100 Watt	185 Watt
Interface	MXM-B (3.0)	PCIe 3.0 x16
Supplementary power connectors	None	2x 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 7870 XT has 85% more power consumption, than Radeon HD 6990M.
Radeon HD 6990M is connected by MXM-B (3.0), and Radeon HD 7870 XT uses PCIe 3.0 x16 interface.
Radeon HD 6990M and Radeon HD 7870 XT have maximum RAM of 2 GB.
Radeon HD 6990M is used in Laptops, and Radeon HD 7870 XT - in Desktops.
Radeon HD 6990M is build with Terascale 2 architecture, and Radeon HD 7870 XT - with GCN 1.0.
Core clock speed of Radeon HD 7870 XT is 210 MHz higher, than Radeon HD 6990M.
Radeon HD 6990M is manufactured by 40 nm process technology, and Radeon HD 7870 XT - by 28 nm process technology.
Memory clock speed of Radeon HD 7870 XT is 5100 MHz higher, than Radeon HD 6990M.

Game benchmarks


high / 1080p	14−16	35−40
ultra / 1080p	8−9	21−24
QHD / 1440p	3−4	16−18
4K / 2160p	−	10−11
low / 720p	30−33	60−65
medium / 1080p	16−18	40−45
The average gaming FPS of Radeon HD 7870 XT in Assassin's Creed Odyssey is 140% more, than Radeon HD 6990M.
high / 1080p	21−24	55−60
ultra / 1080p	18−20	45−50
QHD / 1440p	6−7	35−40
4K / 2160p	5−6	18−20
low / 720p	45−50	100−110
medium / 1080p	24−27	60−65
The average gaming FPS of Radeon HD 7870 XT in Battlefield 5 is 157% more, than Radeon HD 6990M.
low / 768p	45−50	50−55
QHD / 1440p	0−1	0−1
The average gaming FPS of Radeon HD 7870 XT in Call of Duty: Warzone is 10% more, than Radeon HD 6990M.
low / 768p	200−210	250−260
medium / 768p	170−180	220−230
ultra / 1080p	90−95	180−190
QHD / 1440p	50−55	110−120
4K / 2160p	30−33	70−75
high / 768p	130−140	210−220
The average gaming FPS of Radeon HD 7870 XT in Counter-Strike: Global Offensive is 53% more, than Radeon HD 6990M.
low / 768p	55−60	60−65
ultra / 1080p	35−40	−
medium / 1080p	45−50	55−60
The average gaming FPS of Radeon HD 7870 XT in Cyberpunk 2077 is 15% more, than Radeon HD 6990M.
low / 768p	100−110	120−130
medium / 768p	90−95	110−120
ultra / 1080p	60−65	100−110
The average gaming FPS of Radeon HD 7870 XT in Dota 2 is 33% more, than Radeon HD 6990M.
high / 1080p	16−18	45−50
ultra / 1080p	14−16	40−45
QHD / 1440p	−	27−30
4K / 2160p	6−7	14−16
low / 720p	35−40	80−85
medium / 1080p	18−20	45−50
The average gaming FPS of Radeon HD 7870 XT in Far Cry 5 is 147% more, than Radeon HD 6990M.
high / 1080p	24−27	60−65
ultra / 1080p	18−20	45−50
QHD / 1440p	16−18	27−30
4K / 2160p	−	27−30
low / 720p	95−100	180−190
medium / 1080p	50−55	110−120
The average gaming FPS of Radeon HD 7870 XT in Fortnite is 107% more, than Radeon HD 6990M.
high / 1080p	24−27	60−65
ultra / 1080p	18−20	45−50
QHD / 1440p	8−9	30−35
4K / 2160p	−	24−27
low / 720p	50−55	100−110
medium / 1080p	27−30	65−70
The average gaming FPS of Radeon HD 7870 XT in Forza Horizon 4 is 142% more, than Radeon HD 6990M.
low / 768p	80−85	140−150
medium / 768p	70−75	120−130
high / 1080p	27−30	70−75
ultra / 1080p	10−12	30−35
QHD / 1440p	2−3	21−24
The average gaming FPS of Radeon HD 7870 XT in Grand Theft Auto V is 102% more, than Radeon HD 6990M.
high / 1080p	9−10	24−27
ultra / 1080p	7−8	20−22
QHD / 1440p	−	16−18
4K / 2160p	2−3	8−9
low / 720p	27−30	65−70
medium / 1080p	12−14	30−35
The average gaming FPS of Radeon HD 7870 XT in Metro Exodus is 158% more, than Radeon HD 6990M.
low / 768p	110−120	130−140
ultra / 1080p	100−110	−
medium / 1080p	100−110	120−130
The average gaming FPS of Radeon HD 7870 XT in Minecraft is 18% more, than Radeon HD 6990M.
high / 1080p	21−24	−
ultra / 1080p	16−18	14−16
low / 720p	55−60	100−110
medium / 1080p	24−27	18−20
The average gaming FPS of Radeon HD 7870 XT in PLAYERUNKNOWN'S BATTLEGROUNDS is 39% more, than Radeon HD 6990M.
high / 1080p	14−16	24−27
ultra / 1080p	9−10	16−18
QHD / 1440p	0−1	10−11
4K / 2160p	−	7−8
low / 720p	27−30	65−70
medium / 1080p	16−18	35−40
The average gaming FPS of Radeon HD 7870 XT in Red Dead Redemption 2 is 111% more, than Radeon HD 6990M.
low / 768p	50−55	130−140
medium / 768p	30−35	85−90
high / 1080p	18−20	45−50
ultra / 1080p	10−11	24−27
4K / 2160p	8−9	16−18
The average gaming FPS of Radeon HD 7870 XT in The Witcher 3: Wild Hunt is 158% more, than Radeon HD 6990M.
low / 768p	100−105	90−95
medium / 768p	60−65	60−65
ultra / 1080p	30−35	50−55
high / 768p	50−55	60−65
The average gaming FPS of Radeon HD 7870 XT in World of Tanks is 8% more, than Radeon HD 6990M.

Full Specs

	Radeon HD 6990M	Radeon HD 7870 XT
Architecture	Terascale 2	GCN 1.0
Code name	Blackcomb XTX	Tahiti
Type	Laptop	Desktop
Release date	12 July 2011	19 November 2012
Pipelines	1120	1536
Core clock speed	715 MHz	925 MHz
Boost Clock		975 MHz
Transistor count	1,700 million	4,313 million
Manufacturing process technology	40 nm	28 nm
Texture fill rate	40.04	93.60
Floating-point performance	1,601.6 gflops	2,995 gflops
Length		267 mm
Memory bus width	256 Bit	256 Bit
Memory clock speed	900 MHz	6000 MHz
Memory bandwidth	115.2 GB/s	192.0 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)		346 Mh/s
Laptop size	large
Ethereum / ETH (DaggerHashimoto)		14.5 Mh/s
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Radeon HD 6990M vs Radeon HD 7870 XT

Radeon HD 6990M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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