GeForce 940M vs GTX 660M

Place in the ranking	707	785
Place by popularity	not in top-100	not in top-100
Power efficiency	5.16	6.07
Architecture	Kepler (2012−2018)	Maxwell (2014−2017)
GPU code name	GK107	GM108
Market segment	Laptop	Laptop
Release date	22 March 2012 (12 years ago)	13 March 2015 (9 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	384	384
Core clock speed	835 MHz	1072 MHz
Boost clock speed	950 MHz	1176 MHz
Number of transistors	1,270 million	1,870 million
Manufacturing process technology	28 nm	28 nm
Power consumption (TDP)	50 Watt	75 Watt
Texture fill rate	30.40	28.22
Floating-point processing power	0.7296 TFLOPS	0.9032 TFLOPS
ROPs	16	8
TMUs	32	24

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop size	large	medium sized
Bus support	PCI Express 2.0, PCI Express 3.0	PCI Express 3.0
Interface	MXM-B (3.0)	PCIe 3.0 x8
SLI options	+	-

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	GDDR5	DDR3
Maximum RAM amount	1 GB	2 GB
Memory bus width	128bit	64 Bit
Memory clock speed	2000 MHz	900 MHz
Memory bandwidth	64.0 GB/s	14.4 GB/s
Shared memory	-	-

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	No outputs
HDMI	+	-
HDCP	+	-
Maximum VGA resolution	Up to 2048x1536	no data

Supported technologies

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

GPU Boost	no data	2.0
Optimus	+	+
GameWorks	-	+

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12 API	12 (11_0)
Shader Model	5.1	5.1
OpenGL	4.5	4.5
OpenCL	1.1	1.2
Vulkan	1.1.126	1.1.126
CUDA	+	+

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

GTX 660M 3.76
+28.8%

GeForce 940M 2.92

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

GTX 660M 1449
+28.8%

GeForce 940M 1125

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

GTX 660M 2369

GeForce 940M 2406
+1.5%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

GTX 660M 10971
+45.7%

GeForce 940M 7531

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

GTX 660M 1751
+8%

GeForce 940M 1622

3DMark Cloud Gate GPU

Cloud Gate is an outdated DirectX 11 feature level 10 benchmark that was used for home PCs and basic notebooks. It displays a few scenes of some weird space teleportation device launching spaceships into unknown, using fixed resolution of 1280x720. Just like Ice Storm benchmark, it has been discontinued in January 2020 and replaced by 3DMark Night Raid.

GTX 660M 12861
+45.8%

GeForce 940M 8819

GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

GTX 660M 4031

GeForce 940M 5926
+47%

GeekBench 5 Vulkan

GTX 660M 3524

GeForce 940M 4908
+39.3%

GeekBench 5 CUDA

GTX 660M 2901

GeForce 940M 5882
+103%

Octane Render OctaneBench

This is a special benchmark measuring graphics card performance in OctaneRender, which is a realistic GPU rendering engine by OTOY Inc., available either as a standalone program, or as a plugin for 3DS Max, Cinema 4D and many other apps. It renders four different static scenes, then compares render times with a reference GPU which is currently GeForce GTX 980. This benchmark has nothing to do with gaming and is aimed at professional 3D graphics artists.

GTX 660M 13
+18.2%

GeForce 940M 11

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:

900p	32 +33.3%	24−27 −33.3%
Full HD	35 +94.4%	18 −94.4%
1200p	38 +40.7%	27−30 −40.7%
1440p	120−130 +25%	96 −25%
4K	35−40 +20.7%	29 −20.7%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

7−8
+16.7%

6−7

−16.7%

Full HD
Medium Preset

Assassin's Creed Odyssey	10−12 +22.2%	9−10 −22.2%
Assassin's Creed Valhalla	3−4 +200%	1−2 −200%
Battlefield 5	8−9 −87.5%	15 +87.5%
Call of Duty: Modern Warfare	8−9 −25%	10 +25%
Cyberpunk 2077	7−8 +16.7%	6−7 −16.7%
Far Cry 5	8−9 −50%	12 +50%
Far Cry New Dawn	10−11 −50%	15 +50%
Forza Horizon 4	21−24 −86.4%	41 +86.4%
Hitman 3	9−10 +12.5%	8−9 −12.5%
Horizon Zero Dawn	24−27 +18.2%	21−24 −18.2%
Metro Exodus	7−8 +133%	3−4 −133%
Red Dead Redemption 2	9−10 −55.6%	14 +55.6%
Shadow of the Tomb Raider	14−16 −50%	21 +50%
Watch Dogs: Legion	40−45 +7.7%	35−40 −7.7%

Full HD
High Preset

Assassin's Creed Odyssey	10−12 +22.2%	9−10 −22.2%
Assassin's Creed Valhalla	3−4 +200%	1−2 −200%
Battlefield 5	8−9 +60%	5−6 −60%
Call of Duty: Modern Warfare	8−9 +14.3%	7−8 −14.3%
Cyberpunk 2077	7−8 +16.7%	6−7 −16.7%
Far Cry 5	8−9 −25%	10 +25%
Far Cry New Dawn	10−11 +25%	8−9 −25%
Forza Horizon 4	21−24 −54.5%	34 +54.5%
Hitman 3	9−10 +12.5%	8−9 −12.5%
Horizon Zero Dawn	24−27 +18.2%	21−24 −18.2%
Metro Exodus	7−8 +133%	3−4 −133%
Red Dead Redemption 2	9−10 +28.6%	7−8 −28.6%
Shadow of the Tomb Raider	14−16 +16.7%	12−14 −16.7%
The Witcher 3: Wild Hunt	14−16 −60%	24 +60%
Watch Dogs: Legion	40−45 +7.7%	35−40 −7.7%

Full HD
Ultra Preset

Assassin's Creed Odyssey	10−12 +22.2%	9−10 −22.2%
Assassin's Creed Valhalla	3−4 +200%	1−2 −200%
Call of Duty: Modern Warfare	8−9 +14.3%	7−8 −14.3%
Cyberpunk 2077	7−8 +16.7%	6−7 −16.7%
Far Cry 5	8−9 +0%	8 +0%
Forza Horizon 4	21−24 +46.7%	14−16 −46.7%
Hitman 3	9−10 +12.5%	8−9 −12.5%
Horizon Zero Dawn	24−27 +18.2%	21−24 −18.2%
Shadow of the Tomb Raider	14−16 +16.7%	12−14 −16.7%
The Witcher 3: Wild Hunt	14−16 +150%	6 −150%
Watch Dogs: Legion	40−45 +7.7%	35−40 −7.7%

Full HD
Epic Preset

Red Dead Redemption 2

9−10

−11.1%

10
+11.1%

1440p
High Preset

Battlefield 5	7−8 +40%	5−6 −40%
Far Cry New Dawn	6−7 +50%	4−5 −50%

1440p
Ultra Preset

Assassin's Creed Odyssey	3−4 +50%	2−3 −50%
Call of Duty: Modern Warfare	3−4 +50%	2−3 −50%
Cyberpunk 2077	2−3 +100%	1−2 −100%
Far Cry 5	4−5 +33.3%	3−4 −33.3%
Forza Horizon 4	3−4 +50%	2−3 −50%
Hitman 3	8−9 +0%	8−9 +0%
Horizon Zero Dawn	9−10 +28.6%	7−8 −28.6%
The Witcher 3: Wild Hunt	3−4 +50%	2−3 −50%
Watch Dogs: Legion	21−24 +35.3%	16−18 −35.3%

1440p
Epic Preset

Red Dead Redemption 2

7−8
+16.7%

6−7

−16.7%

4K
High Preset

Battlefield 5	2−3 +100%	1−2 −100%
Far Cry New Dawn	2−3 +0%	2−3 +0%
Metro Exodus	0−1	0−1

4K
Ultra Preset

Assassin's Creed Odyssey	3−4 +50%	2−3 −50%
Assassin's Creed Valhalla	2−3 +100%	1−2 −100%
Call of Duty: Modern Warfare	1−2 +0%	1−2 +0%
Cyberpunk 2077	0−1	0−1
Far Cry 5	2−3 +100%	1−2 −100%
Forza Horizon 4	2−3	0−1
Watch Dogs: Legion	1−2 +0%	1−2 +0%

4K
Epic Preset

Red Dead Redemption 2

5−6
+25%

4−5

−25%

This is how GTX 660M and GeForce 940M compete in popular games:

GTX 660M is 33% faster in 900p
GTX 660M is 94% faster in 1080p
GTX 660M is 41% faster in 1200p
GTX 660M is 25% faster in 1440p
GTX 660M is 21% faster in 4K

Here's the range of performance differences observed across popular games:

in Assassin's Creed Valhalla, with 1080p resolution and the Medium Preset, the GTX 660M is 200% faster.
in Battlefield 5, with 1080p resolution and the Medium Preset, the GeForce 940M is 88% faster.

All in all, in popular games: