GeForce GT 640 vs GTX 980M SLI

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Aggregate performance score

We've compared GeForce GTX 980M SLI with GeForce GT 640, including specs and performance data.

GTX 980M SLI
2014
2x 8 GB GDDR5, 200 Watt
23.37
+789%

980M SLI outperforms 640 by a whopping 789% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking250831
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.20
Power efficiency9.413.26
ArchitectureMaxwell (2014−2017)Kepler (2012−2018)
GPU code nameno dataGK107
Market segmentLaptopDesktop
Release date7 October 2014 (10 years ago)5 June 2012 (13 years ago)
Launch price (MSRP)no data$99

Cost-effectiveness evaluation

The higher the ratio, the better. We use the manufacturer's recommended prices.

no data

Performance to price scatter graph

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 cores3072384
Core clock speed1038 MHz902 MHz
Boost clock speed1127 MHzno data
Number of transistors2x 5200 Million1,270 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)200 Watt65 Watt
Texture fill rateno data28.86
Floating-point processing powerno data0.6927 TFLOPS
ROPsno data16
TMUsno data32
L1 Cacheno data32 KB
L2 Cacheno data256 KB

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 sizelargeno data
Interfaceno dataPCIe 3.0 x16
Lengthno data145 mm
Widthno data1-slot
Supplementary power connectorsno dataNone
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 typeGDDR5DDR3
Maximum RAM amount2x 8 GB2 GB
Memory bus width2x 256 Bit128 Bit
Memory clock speed5000 MHz891 MHz
Memory bandwidthno data28.51 GB/s
Shared memory-no data

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectorsno data1x 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.

Optimus+-

API and SDK support

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

DirectX12_112 (11_0)
Shader Modelno data5.1
OpenGLno data4.6
OpenCLno data1.2
Vulkan+1.1.126
CUDA+3.0

Synthetic benchmarks

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.

GTX 980M SLI 23.37
+789%
GT 640 2.63

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 980M SLI 18632
+1094%
GT 640 1560

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:

900p135
+864%
14−16
−864%
Full HD110
+817%
12−14
−817%

Cost per frame, $

1080pno data8.25

FPS performance in popular games

Full HD
Low

Counter-Strike 2 140−150
+794%
16−18
−794%
Cyberpunk 2077 55−60
+817%
6−7
−817%
Hogwarts Legacy 50−55
+940%
5−6
−940%

Full HD
Medium

Battlefield 5 95−100
+890%
10−11
−890%
Counter-Strike 2 140−150
+794%
16−18
−794%
Cyberpunk 2077 55−60
+817%
6−7
−817%
Far Cry 5 80−85
+811%
9−10
−811%
Fortnite 120−130
+917%
12−14
−917%
Forza Horizon 4 95−100
+890%
10−11
−890%
Forza Horizon 5 75−80
+888%
8−9
−888%
Hogwarts Legacy 50−55
+940%
5−6
−940%
PLAYERUNKNOWN'S BATTLEGROUNDS 95−100
+890%
10−11
−890%
Valorant 170−180
+850%
18−20
−850%

Full HD
High

Battlefield 5 95−100
+890%
10−11
−890%
Counter-Strike 2 140−150
+794%
16−18
−794%
Counter-Strike: Global Offensive 260−270
+867%
27−30
−867%
Cyberpunk 2077 55−60
+817%
6−7
−817%
Dota 2 120−130
+793%
14−16
−793%
Far Cry 5 80−85
+811%
9−10
−811%
Fortnite 120−130
+917%
12−14
−917%
Forza Horizon 4 95−100
+890%
10−11
−890%
Forza Horizon 5 75−80
+888%
8−9
−888%
Grand Theft Auto V 90−95
+810%
10−11
−810%
Hogwarts Legacy 50−55
+940%
5−6
−940%
Metro Exodus 55−60
+833%
6−7
−833%
PLAYERUNKNOWN'S BATTLEGROUNDS 95−100
+890%
10−11
−890%
The Witcher 3: Wild Hunt 75−80
+850%
8−9
−850%
Valorant 170−180
+850%
18−20
−850%

Full HD
Ultra

Battlefield 5 95−100
+890%
10−11
−890%
Cyberpunk 2077 55−60
+817%
6−7
−817%
Dota 2 120−130
+793%
14−16
−793%
Far Cry 5 80−85
+811%
9−10
−811%
Forza Horizon 4 95−100
+890%
10−11
−890%
Hogwarts Legacy 50−55
+940%
5−6
−940%
PLAYERUNKNOWN'S BATTLEGROUNDS 95−100
+890%
10−11
−890%
The Witcher 3: Wild Hunt 75−80
+850%
8−9
−850%
Valorant 170−180
+850%
18−20
−850%

Full HD
Epic

Fortnite 120−130
+917%
12−14
−917%

1440p
High

Counter-Strike 2 55−60
+817%
6−7
−817%
Counter-Strike: Global Offensive 170−180
+889%
18−20
−889%
Grand Theft Auto V 45−50
+820%
5−6
−820%
Metro Exodus 30−35
+1033%
3−4
−1033%
PLAYERUNKNOWN'S BATTLEGROUNDS 170−180
+872%
18−20
−872%
Valorant 200−210
+890%
21−24
−890%

1440p
Ultra

Battlefield 5 70−75
+900%
7−8
−900%
Cyberpunk 2077 24−27
+1150%
2−3
−1150%
Far Cry 5 55−60
+867%
6−7
−867%
Forza Horizon 4 65−70
+829%
7−8
−829%
Hogwarts Legacy 27−30
+833%
3−4
−833%
The Witcher 3: Wild Hunt 40−45
+925%
4−5
−925%

1440p
Epic

Fortnite 60−65
+917%
6−7
−917%

4K
High

Counter-Strike 2 24−27
+1150%
2−3
−1150%
Grand Theft Auto V 45−50
+840%
5−6
−840%
Hogwarts Legacy 16−18
+1500%
1−2
−1500%
Metro Exodus 21−24
+1000%
2−3
−1000%
The Witcher 3: Wild Hunt 35−40
+850%
4−5
−850%
Valorant 140−150
+825%
16−18
−825%

4K
Ultra

Battlefield 5 35−40
+875%
4−5
−875%
Counter-Strike 2 24−27
+1150%
2−3
−1150%
Cyberpunk 2077 10−12
+1000%
1−2
−1000%
Dota 2 80−85
+811%
9−10
−811%
Far Cry 5 30−33
+900%
3−4
−900%
Forza Horizon 4 40−45
+1000%
4−5
−1000%
Hogwarts Legacy 16−18
+1500%
1−2
−1500%
PLAYERUNKNOWN'S BATTLEGROUNDS 27−30
+800%
3−4
−800%

4K
Epic

Fortnite 27−30
+833%
3−4
−833%

This is how GTX 980M SLI and GT 640 compete in popular games:

  • GTX 980M SLI is 864% faster in 900p
  • GTX 980M SLI is 817% faster in 1080p

Pros & cons summary


Performance score 23.37 2.63
Recency 7 October 2014 5 June 2012
Power consumption (TDP) 200 Watt 65 Watt

GTX 980M SLI has a 788.6% higher aggregate performance score, and an age advantage of 2 years.

GT 640, on the other hand, has 207.7% lower power consumption.

The GeForce GTX 980M SLI is our recommended choice as it beats the GeForce GT 640 in performance tests.

Be aware that GeForce GTX 980M SLI is a notebook graphics card while GeForce GT 640 is a desktop one.

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NVIDIA GeForce GTX 980M SLI
GeForce GTX 980M SLI
NVIDIA GeForce GT 640
GeForce GT 640

Other comparisons

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Community ratings

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