GeForce GT 640 Rev. 2 vs 920MX

Place in performance ranking	760	685
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.07	0.19
Architecture	Maxwell (2014−2018)	Kepler 2.0 (2013−2015)
GPU code name	N16V-GMR	GK208
Market segment	Laptop	Desktop
Release date	25 March 2015 (9 years ago)	29 May 2013 (11 years ago)
Launch price (MSRP)	no data	$89
Current price	$1597	$230 (2.6x MSRP)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

GT 640 Rev. 2 has 171% better value for money than GeForce 920MX.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	256	384
Core clock speed	965 MHz	1046 MHz
Boost clock speed	993 MHz	no data
Number of transistors	no data	915 million
Manufacturing process technology	28 nm	28 nm
Power consumption (TDP)	16 Watt	49 Watt
Texture fill rate	23.83	33.47
Floating-point performance	602.1 gflops	803.3 gflops

Form factor & compatibility

Information on GeForce 920MX and GeForce GT 640 Rev. 2 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Bus support	PCI Express 3.0	no data
Interface	PCIe 3.0 x8	PCIe 2.0 x8
Length	no data	145 mm
Width	no data	1-slot
Supplementary power connectors	None	None

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	DDR3, GDDR5	GDDR5
Maximum RAM amount	2 GB	1 GB
Memory bus width	64 Bit	64 Bit
Memory clock speed	1800 MHz	5008 MHz
Memory bandwidth	14.4 GB/s	40.06 GB/s
Shared memory	-	no data

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	No outputs	1x DVI, 1x HDMI, 1x VGA
HDMI	no data	+

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

GPU Boost	2.0	no data
Optimus	+	no data
GameWorks	+	no data

API compatibility

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX	12 (11_0)	12 (11_0)
Shader Model	5.1	5.1
OpenGL	4.5	4.6
OpenCL	1.2	1.2
Vulkan	1.1.126	1.1.126
CUDA	+	3.5

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD

−20%

24−27
+20%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

5−6

−20%

6−7
+20%

Full HD
Medium Preset

Assassin's Creed Odyssey	6−7 −16.7%	7−8 +16.7%
Battlefield 5	4−5 −25%	5−6 +25%
Call of Duty: Modern Warfare	7−8 −14.3%	8−9 +14.3%
Cyberpunk 2077	5−6 −20%	6−7 +20%
Far Cry 5	10 −20%	12−14 +20%
Far Cry New Dawn	7−8 −14.3%	8−9 +14.3%
Forza Horizon 4	10−12 −9.1%	12−14 +9.1%
Hitman 3	6−7 −16.7%	7−8 +16.7%
Horizon Zero Dawn	18−20 −16.7%	21−24 +16.7%
Red Dead Redemption 2	7−8 −14.3%	8−9 +14.3%
Shadow of the Tomb Raider	12−14 −16.7%	14−16 +16.7%
Watch Dogs: Legion	16−18 −12.5%	18−20 +12.5%

Full HD
High Preset

Assassin's Creed Odyssey	6−7 −16.7%	7−8 +16.7%
Battlefield 5	4−5 −25%	5−6 +25%
Call of Duty: Modern Warfare	7−8 −14.3%	8−9 +14.3%
Cyberpunk 2077	5−6 −20%	6−7 +20%
Far Cry 5	8 −25%	10−11 +25%
Far Cry New Dawn	7−8 −14.3%	8−9 +14.3%
Forza Horizon 4	10−12 −9.1%	12−14 +9.1%
Hitman 3	6−7 −16.7%	7−8 +16.7%
Horizon Zero Dawn	18−20 −16.7%	21−24 +16.7%
Red Dead Redemption 2	7−8 −14.3%	8−9 +14.3%
Shadow of the Tomb Raider	12−14 −16.7%	14−16 +16.7%
The Witcher 3: Wild Hunt	7−8 −14.3%	8−9 +14.3%
Watch Dogs: Legion	16−18 −12.5%	18−20 +12.5%

Full HD
Ultra Preset

Assassin's Creed Odyssey	6−7 −16.7%	7−8 +16.7%
Call of Duty: Modern Warfare	7−8 −14.3%	8−9 +14.3%
Cyberpunk 2077	5−6 −20%	6−7 +20%
Far Cry 5	6 −16.7%	7−8 +16.7%
Forza Horizon 4	10−12 −9.1%	12−14 +9.1%
Horizon Zero Dawn	18−20 −16.7%	21−24 +16.7%
Shadow of the Tomb Raider	12−14 −16.7%	14−16 +16.7%
The Witcher 3: Wild Hunt	7−8 −14.3%	8−9 +14.3%
Watch Dogs: Legion	16−18 −12.5%	18−20 +12.5%

Full HD
Epic Preset

Red Dead Redemption 2

7−8

−14.3%

8−9
+14.3%

1440p
High Preset

Battlefield 5	5−6 −20%	6−7 +20%
Far Cry New Dawn	3−4 +0%	3−4 +0%

1440p
Ultra Preset

Assassin's Creed Odyssey	2−3 +0%	2−3 +0%
Call of Duty: Modern Warfare	5−6 −20%	6−7 +20%
Cyberpunk 2077	1−2 +0%	1−2 +0%
Far Cry 5	4−5 −25%	5−6 +25%
Forza Horizon 4	4−5 −25%	5−6 +25%
Hitman 3	8−9 −25%	10−11 +25%
Horizon Zero Dawn	7−8 −14.3%	8−9 +14.3%
The Witcher 3: Wild Hunt	2−3 +0%	2−3 +0%
Watch Dogs: Legion	1−2 +0%	1−2 +0%

1440p
Epic Preset

Red Dead Redemption 2

6−7

−16.7%

7−8
+16.7%

4K
High Preset

Battlefield 5	1−2 +0%	1−2 +0%
Far Cry New Dawn	2−3 +0%	2−3 +0%
Horizon Zero Dawn	3−4 +0%	3−4 +0%

4K
Ultra Preset

Assassin's Creed Odyssey	2−3 +0%	2−3 +0%
Assassin's Creed Valhalla	1−2 +0%	1−2 +0%
Call of Duty: Modern Warfare	1−2 +0%	1−2 +0%
Far Cry 5	1−2 +0%	1−2 +0%
Forza Horizon 4	0−1	0−1
Horizon Zero Dawn	3−4 +0%	3−4 +0%
Metro Exodus	5−6 −20%	6−7 +20%
Watch Dogs: Legion	0−1	0−1