GeForce GTX 675MX vs Radeon RX 640

When choosing between GeForce GTX 675MX and Radeon RX 640, 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 GeForce GTX 675MX and Radeon RX 640.

GeForce GTX 675MX Check Price

Radeon RX 640 Check Price

GeForce GTX 675MX and Radeon RX 640 are Laptop Graphics Cards

Note: GeForce GTX 675MX and Radeon RX 640 are only used in laptop graphics. They have 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 GeForce GTX 675MX or Radeon RX 640 here:

GeForce GTX 675MX Laptops

Radeon RX 640 Laptops

Main Specs

	GeForce GTX 675MX	Radeon RX 640
Power consumption (TDP)	100 Watt	50 Watt
Interface	MXM-B (3.0)	PCIe 3.0 x8
Supplementary power connectors	None	None
Memory type	GDDR5	GDDR5
Maximum RAM amount	2 GB	4 GB
Display Connectors	No outputs	1x DVI, 1x HDMI, 1x DisplayPort
	Check Price	Check Price

GeForce GTX 675MX has 100% more power consumption, than Radeon RX 640.
GeForce GTX 675MX is connected by MXM-B (3.0), and Radeon RX 640 uses PCIe 3.0 x8 interface.
Radeon RX 640 has 2 GB more memory, than GeForce GTX 675MX.
Both cards are used in Laptops.
GeForce GTX 675MX is build with Kepler architecture, and Radeon RX 640 - with Polaris.
Core clock speed of Radeon RX 640 is 618 MHz higher, than GeForce GTX 675MX.
GeForce GTX 675MX is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
Memory clock speed of Radeon RX 640 is 4200 MHz higher, than GeForce GTX 675MX.

Game benchmarks


high / 1080p	9−10	5−6
ultra / 1080p	5−6	3−4
QHD / 1440p	0−1	2−3
low / 720p	21−24	16−18
medium / 1080p	12−14	7−8
The average gaming FPS of GeForce GTX 675MX in Assassin's Creed Odyssey is 50% more, than Radeon RX 640.
high / 1080p	16−18	10−12
ultra / 1080p	14−16	8−9
QHD / 1440p	0−1	0−1
low / 720p	30−35	24−27
medium / 1080p	16−18	10−12
The average gaming FPS of GeForce GTX 675MX in Battlefield 5 is 42% more, than Radeon RX 640.
low / 768p	45−50	45−50
high / 1080p	−	40−45
QHD / 1440p	0−1	0−1
GeForce GTX 675MX and Radeon RX 640 have the same average FPS in Call of Duty: Warzone.
low / 768p	160−170	130−140
medium / 768p	130−140	100−110
ultra / 1080p	70−75	50−55
QHD / 1440p	40−45	27−30
4K / 2160p	30−33	12−14
high / 768p	100−110	80−85
The average gaming FPS of GeForce GTX 675MX in Counter-Strike: Global Offensive is 31% more, than Radeon RX 640.
low / 768p	55−60	50−55
ultra / 1080p	27−30	18−20
medium / 1080p	45−50	45−50
The average gaming FPS of GeForce GTX 675MX in Cyberpunk 2077 is 12% more, than Radeon RX 640.
low / 768p	90−95	80−85
medium / 768p	70−75	55−60
ultra / 1080p	45−50	30−35
The average gaming FPS of GeForce GTX 675MX in Dota 2 is 22% more, than Radeon RX 640.
high / 1080p	10−12	7−8
ultra / 1080p	10−11	5−6
4K / 2160p	4−5	5−6
low / 720p	24−27	18−20
medium / 1080p	12−14	8−9
The average gaming FPS of GeForce GTX 675MX in Far Cry 5 is 33% more, than Radeon RX 640.
high / 1080p	18−20	7−8
ultra / 1080p	12−14	0−1
QHD / 1440p	−	0−1
low / 720p	70−75	60−65
medium / 1080p	30−35	18−20
The average gaming FPS of GeForce GTX 675MX in Fortnite is 41% more, than Radeon RX 640.
high / 1080p	16−18	10−11
ultra / 1080p	14−16	−
QHD / 1440p	4−5	−
4K / 2160p	−	8−9
low / 720p	35−40	24−27
medium / 1080p	18−20	12−14
The average gaming FPS of GeForce GTX 675MX in Forza Horizon 4 is 50% more, than Radeon RX 640.
low / 768p	65−70	50−55
medium / 768p	55−60	−
high / 1080p	18−20	10−12
ultra / 1080p	8−9	5−6
QHD / 1440p	0−1	−
medium / 720p	−	45−50
The average gaming FPS of GeForce GTX 675MX in Grand Theft Auto V is 34% more, than Radeon RX 640.
high / 1080p	6−7	3−4
ultra / 1080p	4−5	1−2
4K / 2160p	1−2	−
low / 720p	18−20	10−11
medium / 1080p	8−9	5−6
The average gaming FPS of GeForce GTX 675MX in Metro Exodus is 80% more, than Radeon RX 640.
low / 768p	100−110	90−95
ultra / 1080p	90−95	80−85
medium / 1080p	95−100	−
The average gaming FPS of GeForce GTX 675MX in Minecraft is 12% more, than Radeon RX 640.
high / 1080p	18−20	6−7
ultra / 1080p	14−16	2−3
4K / 2160p	−	0−1
low / 720p	40−45	27−30
medium / 1080p	20−22	10−11
The average gaming FPS of GeForce GTX 675MX in PLAYERUNKNOWN'S BATTLEGROUNDS is 100% more, than Radeon RX 640.
high / 1080p	12−14	−
ultra / 1080p	8−9	−
QHD / 1440p	0−1	−
low / 720p	18−20	10−12
medium / 1080p	12−14	9−10
The average gaming FPS of GeForce GTX 675MX in Red Dead Redemption 2 is 60% more, than Radeon RX 640.
low / 768p	35−40	21−24
medium / 768p	21−24	14−16
high / 1080p	12−14	6−7
ultra / 1080p	8−9	4−5
4K / 2160p	7−8	3−4
The average gaming FPS of GeForce GTX 675MX in The Witcher 3: Wild Hunt is 70% more, than Radeon RX 640.
low / 768p	90−95	75−80
medium / 768p	50−55	40−45
ultra / 1080p	24−27	18−20
high / 768p	40−45	35−40
The average gaming FPS of GeForce GTX 675MX in World of Tanks is 20% more, than Radeon RX 640.

Full Specs

	GeForce GTX 675MX	Radeon RX 640
Architecture	Kepler	Polaris
Code name	N13E-GSR	Polaris 12
Type	Laptop	Laptop
Release date	1 October 2012	12 August 2019
Pipelines	960	640
Core clock speed	600 MHz	1218 MHz
Boost Clock		1218 MHz
Transistor count	3,540 million	2,200 million
Manufacturing process technology	28 nm	14 nm
Texture fill rate	48.0 billion/sec	38.98
Floating-point performance	1,256 gflops
Memory bus width	256 Bit	64 Bit
Memory clock speed	1800 MHz	6000 MHz
Memory bandwidth	115.2 GB/s	112.0 GB/s
Shared memory	-	-
DirectX	12 API	12 (12_0)
Shader Model	5.1	6.4
OpenGL	4.5	4.6
OpenCL	1.1	2.0
Vulkan	1.1.126	1.2.131
CUDA	+
FreeSync		+
CUDA cores	960
Bus support	PCI Express 2.0
SLI options	+
HDMI	+
HDCP	+
Maximum VGA resolution	Up to 2048x1536
Bitcoin / BTC (SHA256)	63 Mh/s
Laptop size	large	large
Optimus	+
	Check Price	Check Price

GeForce GTX 675MX vs Radeon RX 640

GeForce GTX 675MX and Radeon RX 640 are Laptop Graphics Cards

Main Specs

Game benchmarks

Full Specs

Similar compares