GeForce GT 640 OEM vs GT 540M

Place in the ranking	1046	935
Place by popularity	not in top-100	not in top-100
Power efficiency	2.60	2.50
Architecture	Fermi (2010−2014)	Kepler (2012−2018)
GPU code name	GF108	GK107
Market segment	Laptop	Desktop
Release date	5 January 2011 (13 years ago)	24 April 2012 (12 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	96	384
CUDA cores	96	no data
Core clock speed	672 MHz	797 MHz
Number of transistors	585 million	1,270 million
Manufacturing process technology	40 nm	28 nm
Power consumption (TDP)	35 Watt	50 Watt
Texture fill rate	10.75	25.50
Floating-point processing power	0.258 TFLOPS	0.6121 TFLOPS
ROPs	4	16
TMUs	16	32

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	no data
Interface	MXM-A (3.0)	PCIe 3.0 x16
Length	no data	145 mm
Width	no data	1-slot
Supplementary power connectors	no data	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	DDR3
Maximum RAM amount	2 GB	2 GB
Memory bus width	128 Bit	128 Bit
Memory clock speed	900 MHz	891 MHz
Memory bandwidth	28.8 GB/s	28.51 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 DisplayPort
HDMI	-	+

Supported technologies

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

3D Blu-Ray	+	-
3D Gaming	+	-
Optimus	+	-

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	4.6
OpenCL	1.1	1.2
Vulkan	N/A	1.1.126
CUDA	+	3.0

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	16 −31.3%	21−24 +31.3%
Full HD	20 −35%	27−30 +35%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

3−4

−33.3%

4−5
+33.3%

Full HD
Medium Preset

Assassin's Creed Odyssey	6−7 −33.3%	8−9 +33.3%
Call of Duty: Modern Warfare	4−5 −25%	5−6 +25%
Cyberpunk 2077	3−4 −33.3%	4−5 +33.3%
Far Cry 5	1−2 +0%	1−2 +0%
Far Cry New Dawn	3−4 −33.3%	4−5 +33.3%
Forza Horizon 4	2−3 +0%	2−3 +0%
Hitman 3	6−7 −33.3%	8−9 +33.3%
Horizon Zero Dawn	14−16 −28.6%	18−20 +28.6%
Red Dead Redemption 2	2−3 +0%	2−3 +0%
Shadow of the Tomb Raider	8−9 −25%	10−11 +25%
Watch Dogs: Legion	30−35 −36.4%	45−50 +36.4%

Full HD
High Preset

Assassin's Creed Odyssey	6−7 −33.3%	8−9 +33.3%
Call of Duty: Modern Warfare	4−5 −25%	5−6 +25%
Cyberpunk 2077	3−4 −33.3%	4−5 +33.3%
Far Cry 5	1−2 +0%	1−2 +0%
Far Cry New Dawn	3−4 −33.3%	4−5 +33.3%
Forza Horizon 4	2−3 +0%	2−3 +0%
Hitman 3	6−7 −33.3%	8−9 +33.3%
Horizon Zero Dawn	14−16 −28.6%	18−20 +28.6%
Red Dead Redemption 2	2−3 +0%	2−3 +0%
Shadow of the Tomb Raider	8−9 −25%	10−11 +25%
The Witcher 3: Wild Hunt	10−12 −27.3%	14−16 +27.3%
Watch Dogs: Legion	30−35 −36.4%	45−50 +36.4%

Full HD
Ultra Preset

Assassin's Creed Odyssey	6−7 −33.3%	8−9 +33.3%
Call of Duty: Modern Warfare	4−5 −25%	5−6 +25%
Cyberpunk 2077	3−4 −33.3%	4−5 +33.3%
Far Cry 5	1−2 +0%	1−2 +0%
Forza Horizon 4	2−3 +0%	2−3 +0%
Hitman 3	6−7 −33.3%	8−9 +33.3%
Horizon Zero Dawn	14−16 −28.6%	18−20 +28.6%
Shadow of the Tomb Raider	8−9 −25%	10−11 +25%
The Witcher 3: Wild Hunt	10−12 −27.3%	14−16 +27.3%
Watch Dogs: Legion	30−35 −36.4%	45−50 +36.4%

Full HD
Epic Preset

Red Dead Redemption 2

2−3

+0%

2−3
+0%

1440p
High Preset

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

1440p
Ultra Preset

Assassin's Creed Odyssey	1−2 +0%	1−2 +0%
Call of Duty: Modern Warfare	0−1	0−1
Cyberpunk 2077	1−2 +0%	1−2 +0%
Far Cry 5	1−2 +0%	1−2 +0%
Hitman 3	7−8 −28.6%	9−10 +28.6%
Horizon Zero Dawn	4−5 −25%	5−6 +25%
The Witcher 3: Wild Hunt	0−1	0−1
Watch Dogs: Legion	6−7 −33.3%	8−9 +33.3%

1440p
Epic Preset

Red Dead Redemption 2

4−5

−25%

5−6
+25%

4K
High Preset

Far Cry New Dawn

0−1

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 +0%	1−2 +0%
Assassin's Creed Valhalla	1−2 +0%	1−2 +0%
Call of Duty: Modern Warfare	0−1	0−1
Far Cry 5	0−1	0−1

4K
Epic Preset

Red Dead Redemption 2

3−4

−33.3%

4−5
+33.3%

This is how GT 540M and GT 640 OEM compete in popular games:

GT 640 OEM is 31% faster in 900p
GT 640 OEM is 35% faster in 1080p

Pros & cons summary

Performance score	1.24	1.70
Recency	5 January 2011	24 April 2012
Chip lithography	40 nm	28 nm
Power consumption (TDP)	35 Watt	50 Watt

GT 540M has 42.9% lower power consumption.

GT 640 OEM, on the other hand, has a 37.1% higher aggregate performance score, an age advantage of 1 year, and a 42.9% more advanced lithography process.

The GeForce GT 640 OEM is our recommended choice as it beats the GeForce GT 540M in performance tests.

Be aware that GeForce GT 540M is a notebook card while GeForce GT 640 OEM is a desktop one.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.