Radeon HD 6990M vs Radeon HD 7990

If you are going to buy a new graphics card and are choosing between Radeon HD 6990M and Radeon HD 7990, 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 7990, check out specs charts below.

Radeon HD 6990M Check Price

Radeon HD 7990 Check Price

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 7990
Power consumption (TDP)	100 Watt	375 Watt
Interface	MXM-B (3.0)	PCIe 3.0 x16
Supplementary power connectors	None	2x 8-pin
Memory type	GDDR5	GDDR5
Maximum RAM amount	2 GB	3 GB
Display Connectors	No outputs	1x DVI, 4x mini-DisplayPort
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Radeon HD 7990 has 275% more power consumption, than Radeon HD 6990M.
Radeon HD 6990M is connected by MXM-B (3.0), and Radeon HD 7990 uses PCIe 3.0 x16 interface.
Radeon HD 7990 has 1 GB more memory, than Radeon HD 6990M.
Radeon HD 6990M is used in Laptops, and Radeon HD 7990 - in Desktops.
Radeon HD 6990M is build with Terascale 2 architecture, and Radeon HD 7990 - with GCN 1.0.
Core clock speed of Radeon HD 7990 is 235 MHz higher, than Radeon HD 6990M.
Radeon HD 6990M is manufactured by 40 nm process technology, and Radeon HD 7990 - by 28 nm process technology.
Memory clock speed of Radeon HD 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 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 7990 in World of Tanks is 8% more, than Radeon HD 6990M.

Full Specs

	Radeon HD 6990M	Radeon HD 7990
Architecture	Terascale 2	GCN 1.0
Code name	Blackcomb XTX	Malta
Type	Laptop	Desktop
Release date	12 July 2011	24 April 2013
Pipelines	1120	2048
Core clock speed	715 MHz	950 MHz
Boost Clock		1000 MHz
Transistor count	1,700 million	4,313 million
Manufacturing process technology	40 nm	28 nm
Texture fill rate	40.04	128.0
Floating-point performance	1,601.6 gflops	2x 4,096 gflops
Length		307 mm
Memory bus width	256 Bit	384 Bit
Memory clock speed	900 MHz	6000 MHz
Memory bandwidth	115.2 GB/s	288.0 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)		459 Mh/s
Laptop size	large
Ethereum / ETH (DaggerHashimoto)		44 Mh/s
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Radeon HD 6990M vs Radeon HD 7990

Radeon HD 6990M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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