GeForce 945A vs GeForce GT 645M
When choosing between GeForce 945A and GeForce GT 645M, 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 945A and GeForce GT 645M.
GeForce 945A
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GeForce GT 645M is a Laptop Graphics Card
Note: GeForce GT 645M is only used in laptop graphics. It has 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 GT 645M here:
Main Specs
GeForce 945A | GeForce GT 645M | |
Power consumption (TDP) | 33 Watt | 32 Watt |
Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
Memory type | GDDR5 | DDR3\GDDR5 |
Maximum RAM amount | 1 GB | 2 GB |
Display Connectors | No outputs | No outputs |
Check Price |
- GeForce 945A has 3% more power consumption, than GeForce GT 645M.
- GeForce 945A is connected by PCIe 3.0 x8, and GeForce GT 645M uses PCIe 3.0 x16 interface.
- GeForce GT 645M has 1 GB more memory, than GeForce 945A.
- GeForce 945A is used in Desktops, and GeForce GT 645M - in Laptops.
- GeForce 945A is build with Maxwell architecture, and GeForce GT 645M - with Kepler.
- GeForce 945A and GeForce GT 645M are manufactured by 28 nm process technology.
- Memory clock speed of GeForce 945A is 3212 MHz higher, than GeForce GT 645M.
Game benchmarks
high / 1080p | 9−10 | 1−2 |
ultra / 1080p | 5−6 | 0−1 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 20−22 | 12−14 |
medium / 1080p | 10−12 | 2−3 |
The average gaming FPS of GeForce 945A in Assassin's Creed Odyssey is 160% more, than GeForce GT 645M. | ||
high / 1080p | 14−16 | − |
ultra / 1080p | 12−14 | 3−4 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 30−35 | 12−14 |
medium / 1080p | 16−18 | 4−5 |
The average gaming FPS of GeForce 945A in Battlefield 5 is 185% more, than GeForce GT 645M. | ||
low / 768p | 45−50 | 50−55 |
high / 1080p | 45−50 | 45−50 |
QHD / 1440p | 0−1 | 0−1 |
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 6% more, than GeForce 945A. | ||
low / 768p | 160−170 | 110−120 |
medium / 768p | 130−140 | 85−90 |
ultra / 1080p | 65−70 | 35−40 |
QHD / 1440p | 35−40 | − |
4K / 2160p | 27−30 | 10−11 |
high / 768p | 95−100 | 60−65 |
The average gaming FPS of GeForce 945A in Counter-Strike: Global Offensive is 58% more, than GeForce GT 645M. | ||
low / 768p | 55−60 | 70−75 |
ultra / 1080p | 24−27 | 14−16 |
medium / 1080p | 45−50 | 45−50 |
The average gaming FPS of GeForce GT 645M in Cyberpunk 2077 is 4% more, than GeForce 945A. | ||
low / 768p | 90−95 | 70−75 |
medium / 768p | 70−75 | 45−50 |
ultra / 1080p | 40−45 | 18−20 |
The average gaming FPS of GeForce 945A in Dota 2 is 50% more, than GeForce GT 645M. | ||
high / 1080p | 10−11 | 2−3 |
ultra / 1080p | 10−11 | 2−3 |
4K / 2160p | 4−5 | 0−1 |
low / 720p | 24−27 | 10−11 |
medium / 1080p | 10−12 | 3−4 |
The average gaming FPS of GeForce 945A in Far Cry 5 is 250% more, than GeForce GT 645M. | ||
high / 1080p | 16−18 | − |
ultra / 1080p | 12−14 | 5−6 |
QHD / 1440p | − | 1−2 |
low / 720p | 70−75 | 45−50 |
medium / 1080p | 30−35 | 8−9 |
The average gaming FPS of GeForce 945A in Fortnite is 95% more, than GeForce GT 645M. | ||
high / 1080p | 14−16 | 3−4 |
ultra / 1080p | 12−14 | − |
QHD / 1440p | 3−4 | 0−1 |
low / 720p | 30−35 | 14−16 |
medium / 1080p | 18−20 | 6−7 |
The average gaming FPS of GeForce 945A in Forza Horizon 4 is 175% more, than GeForce GT 645M. | ||
low / 768p | 60−65 | 40−45 |
medium / 768p | 50−55 | − |
high / 1080p | 16−18 | 3−4 |
ultra / 1080p | 8−9 | 2−3 |
QHD / 1440p | 0−1 | 0−1 |
medium / 720p | − | 35−40 |
The average gaming FPS of GeForce 945A in Grand Theft Auto V is 81% more, than GeForce GT 645M. | ||
high / 1080p | 6−7 | 1−2 |
ultra / 1080p | 4−5 | 0−1 |
4K / 2160p | 1−2 | 0−1 |
low / 720p | 16−18 | 3−4 |
medium / 1080p | 8−9 | 2−3 |
The average gaming FPS of GeForce 945A in Metro Exodus is 400% more, than GeForce GT 645M. | ||
low / 768p | 100−105 | 85−90 |
high / 1080p | 95−100 | 55−60 |
ultra / 1080p | 85−90 | − |
medium / 1080p | 95−100 | − |
The average gaming FPS of GeForce 945A in Minecraft is 38% more, than GeForce GT 645M. | ||
high / 1080p | 18−20 | 14−16 |
ultra / 1080p | 14−16 | 12−14 |
low / 720p | 35−40 | 24−27 |
medium / 1080p | 18−20 | 14−16 |
The average gaming FPS of GeForce 945A in PLAYERUNKNOWN'S BATTLEGROUNDS is 29% more, than GeForce GT 645M. | ||
high / 1080p | 12−14 | − |
ultra / 1080p | 8−9 | 3−4 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 16−18 | 4−5 |
medium / 1080p | 12−14 | − |
The average gaming FPS of GeForce 945A in Red Dead Redemption 2 is 200% more, than GeForce GT 645M. | ||
low / 768p | 30−35 | 8−9 |
medium / 768p | 21−24 | 7−8 |
high / 1080p | 10−12 | 3−4 |
ultra / 1080p | 7−8 | 3−4 |
4K / 2160p | 6−7 | 0−1 |
The average gaming FPS of GeForce 945A in The Witcher 3: Wild Hunt is 260% more, than GeForce GT 645M. | ||
low / 768p | 90−95 | 70−75 |
medium / 768p | 50−55 | 35−40 |
ultra / 1080p | 24−27 | 12−14 |
high / 768p | 40−45 | 30−33 |
The average gaming FPS of GeForce 945A in World of Tanks is 39% more, than GeForce GT 645M. |
Full Specs
GeForce 945A | GeForce GT 645M | |
Architecture | Maxwell | Kepler |
Code name | GM108 | N13P-GS |
Type | Desktop | Laptop |
Release date | 13 March 2015 | 22 March 2012 |
Pipelines | 384 | 384 |
Core clock speed | 1072 MHz | |
Boost Clock | 1189 MHz | |
Transistor count | 1,270 million | |
Manufacturing process technology | 28 nm | 28 nm |
Texture fill rate | 28.54 | 22.7 billion/sec |
Floating-point performance | 903.2 gflops | 544.5 gflops |
Memory bus width | 64 Bit | 128bit |
Memory clock speed | 5012 MHz | 1800 MHz |
Memory bandwidth | 40.1 GB/s | |
Shared memory | - | |
DirectX | 12 (11_0) | 12 API |
Shader Model | 5.1 | 5.1 |
OpenGL | 4.6 | 4.5 |
OpenCL | 1.2 | 1.1 |
Vulkan | 1.1.126 | 1.1.126 |
CUDA | 5.0 | + |
CUDA cores | 384 | |
Bus support | PCI Express 2.0, PCI Express 3.0 | |
HDMI | + | |
HDCP | + | |
Maximum VGA resolution | Up to 2048x1536 | |
3D Blu-Ray | + | |
Bitcoin / BTC (SHA256) | 108 Mh/s | 19 Mh/s |
Laptop size | medium sized | |
Optimus | + | |
Check Price |
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