Radeon HD 6850 X2 vs Radeon HD 6990M

If you are going to buy a new graphics card and are choosing between Radeon HD 6850 X2 and Radeon HD 6990M, 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 6850 X2 stacks up against Radeon HD 6990M, check out specs charts below.

Radeon HD 6850 X2

Radeon HD 6990M 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 6850 X2	Radeon HD 6990M
Power consumption (TDP)	254 Watt	100 Watt
Interface	PCIe 2.0 x16	MXM-B (3.0)
Supplementary power connectors	2x 8-pin	None
Memory type	GDDR5	GDDR5
Maximum RAM amount	2 GB	2 GB
Display Connectors	2x DVI, 1x HDMI, 1x DisplayPort	No outputs
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Radeon HD 6850 X2 has 154% more power consumption, than Radeon HD 6990M.
Radeon HD 6850 X2 is connected by PCIe 2.0 x16, and Radeon HD 6990M uses MXM-B (3.0) interface.
Radeon HD 6850 X2 and Radeon HD 6990M have maximum RAM of 2 GB.
Radeon HD 6850 X2 is used in Desktops, and Radeon HD 6990M - in Laptops.
Radeon HD 6850 X2 is build with TeraScale 2 architecture, and Radeon HD 6990M - with Terascale 2.
Core clock speed of Radeon HD 6850 X2 is 85 MHz higher, than Radeon HD 6990M.
Radeon HD 6850 X2 and Radeon HD 6990M are manufactured by 40 nm process technology.
Memory clock speed of Radeon HD 6850 X2 is 3300 MHz higher, than Radeon HD 6990M.

Game benchmarks


high / 1080p	12−14	14−16
ultra / 1080p	7−8	8−9
QHD / 1440p	2−3	3−4
low / 720p	27−30	30−33
medium / 1080p	16−18	16−18
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 15% more, than Radeon HD 6850 X2.
high / 1080p	21−24	21−24
ultra / 1080p	18−20	18−20
QHD / 1440p	4−5	6−7
4K / 2160p	−	5−6
low / 720p	45−50	45−50
medium / 1080p	21−24	24−27
The average gaming FPS of Radeon HD 6990M in Battlefield 5 is 4% more, than Radeon HD 6850 X2.
low / 768p	45−50	45−50
QHD / 1440p	0−1	0−1
Radeon HD 6850 X2 and Radeon HD 6990M have the same average FPS in Call of Duty: Warzone.
low / 768p	190−200	200−210
medium / 768p	160−170	170−180
ultra / 1080p	85−90	90−95
QHD / 1440p	45−50	50−55
4K / 2160p	30−33	30−33
high / 768p	120−130	130−140
The average gaming FPS of Radeon HD 6990M in Counter-Strike: Global Offensive is 6% more, than Radeon HD 6850 X2.
low / 768p	55−60	55−60
ultra / 1080p	35−40	35−40
medium / 1080p	45−50	45−50
Radeon HD 6850 X2 and Radeon HD 6990M have the same average FPS in Cyberpunk 2077.
low / 768p	100−110	100−110
medium / 768p	85−90	90−95
ultra / 1080p	55−60	60−65
The average gaming FPS of Radeon HD 6990M in Dota 2 is 3% more, than Radeon HD 6850 X2.
high / 1080p	14−16	16−18
ultra / 1080p	14−16	14−16
4K / 2160p	5−6	6−7
low / 720p	30−35	35−40
medium / 1080p	16−18	18−20
The average gaming FPS of Radeon HD 6990M in Far Cry 5 is 11% more, than Radeon HD 6850 X2.
high / 1080p	21−24	24−27
ultra / 1080p	16−18	18−20
QHD / 1440p	16−18	16−18
low / 720p	85−90	95−100
medium / 1080p	45−50	50−55
The average gaming FPS of Radeon HD 6990M in Fortnite is 10% more, than Radeon HD 6850 X2.
high / 1080p	21−24	24−27
ultra / 1080p	16−18	18−20
QHD / 1440p	7−8	8−9
low / 720p	45−50	50−55
medium / 1080p	24−27	27−30
The average gaming FPS of Radeon HD 6990M in Forza Horizon 4 is 8% more, than Radeon HD 6850 X2.
low / 768p	75−80	80−85
medium / 768p	65−70	70−75
high / 1080p	24−27	27−30
ultra / 1080p	10−11	10−12
QHD / 1440p	1−2	2−3
The average gaming FPS of Radeon HD 6990M in Grand Theft Auto V is 8% more, than Radeon HD 6850 X2.
high / 1080p	8−9	9−10
ultra / 1080p	6−7	7−8
4K / 2160p	2−3	2−3
low / 720p	24−27	27−30
medium / 1080p	10−12	12−14
The average gaming FPS of Radeon HD 6990M in Metro Exodus is 20% more, than Radeon HD 6850 X2.
low / 768p	100−110	110−120
ultra / 1080p	95−100	100−110
medium / 1080p	100−110	100−110
The average gaming FPS of Radeon HD 6990M in Minecraft is 5% more, than Radeon HD 6850 X2.
high / 1080p	21−24	21−24
ultra / 1080p	16−18	16−18
low / 720p	50−55	55−60
medium / 1080p	21−24	24−27
The average gaming FPS of Radeon HD 6990M in PLAYERUNKNOWN'S BATTLEGROUNDS is 7% more, than Radeon HD 6850 X2.
high / 1080p	12−14	14−16
ultra / 1080p	9−10	9−10
QHD / 1440p	0−1	0−1
low / 720p	24−27	27−30
medium / 1080p	14−16	16−18
The average gaming FPS of Radeon HD 6990M in Red Dead Redemption 2 is 13% more, than Radeon HD 6850 X2.
low / 768p	45−50	50−55
medium / 768p	27−30	30−35
high / 1080p	16−18	18−20
ultra / 1080p	9−10	10−11
4K / 2160p	7−8	8−9
The average gaming FPS of Radeon HD 6990M in The Witcher 3: Wild Hunt is 9% more, than Radeon HD 6850 X2.
low / 768p	95−100	100−105
medium / 768p	55−60	60−65
ultra / 1080p	30−35	30−35
high / 768p	50−55	50−55
The average gaming FPS of Radeon HD 6990M in World of Tanks is 3% more, than Radeon HD 6850 X2.

Full Specs

	Radeon HD 6850 X2	Radeon HD 6990M
Architecture	TeraScale 2	Terascale 2
Code name	Barts	Blackcomb XTX
Type	Desktop	Laptop
Release date	19 September 2011	12 July 2011
Pipelines	960	1120
Core clock speed	800 MHz	715 MHz
Transistor count	1,700 million	1,700 million
Manufacturing process technology	40 nm	40 nm
Texture fill rate	38.40	40.04
Floating-point performance	2x 1,536.0 gflops	1,601.6 gflops
Memory bus width	256 Bit	256 Bit
Memory clock speed	4200 MHz	900 MHz
Memory bandwidth	134.4 GB/s	115.2 GB/s
Shared memory		-
DirectX	11.2 (11_0)	11.2 (11_0)
Shader Model	5.0	5.0
OpenGL	4.4	4.4
OpenCL	1.2	1.2
Vulkan	N/A	N/A
Laptop size		large
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Radeon HD 6850 X2 vs Radeon HD 6990M

Radeon HD 6990M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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