GeForce GT 640M vs Radeon RX 550X
If you are going to buy a new graphics card and are choosing between GeForce GT 640M and Radeon RX 550X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GT 640M stacks up against Radeon RX 550X, check out specs charts below.
Radeon RX 550X
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GeForce GT 640M is a Laptop Graphics Card
Note: GeForce GT 640M 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 640M here:
Main Specs
GeForce GT 640M | Radeon RX 550X | |
Power consumption (TDP) | 32 Watt | 50 Watt |
Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
Supplementary power connectors | None | |
Memory type | DDR3\GDDR5 | GDDR5 |
Maximum RAM amount | 2 GB | 4 GB |
Display Connectors | No outputs | 1x DVI, 1x HDMI, 1x DisplayPort |
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- Radeon RX 550X has 56% more power consumption, than GeForce GT 640M.
- GeForce GT 640M is connected by PCIe 3.0 x16, and Radeon RX 550X uses PCIe 3.0 x8 interface.
- Radeon RX 550X has 2 GB more memory, than GeForce GT 640M.
- GeForce GT 640M is used in Laptops, and Radeon RX 550X - in Desktops.
- GeForce GT 640M is build with Kepler architecture, and Radeon RX 550X - with GCN 4.0.
- GeForce GT 640M is manufactured by 28 nm process technology, and Radeon RX 550X - by 14 nm process technology.
- Memory clock speed of Radeon RX 550X is 4200 MHz higher, than GeForce GT 640M.
Game benchmarks
high / 1080p | 0−1 | 10−11 |
ultra / 1080p | 0−1 | 6−7 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 10−12 | 21−24 |
medium / 1080p | 2−3 | 12−14 |
The average gaming FPS of Radeon RX 550X in Assassin's Creed Odyssey is 183% more, than GeForce GT 640M. | ||
high / 1080p | − | 16−18 |
ultra / 1080p | 3−4 | 14−16 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 12−14 | 35−40 |
medium / 1080p | 4−5 | 18−20 |
The average gaming FPS of Radeon RX 550X in Battlefield 5 is 228% more, than GeForce GT 640M. | ||
low / 768p | 50−55 | 45−50 |
high / 1080p | 45−50 | − |
QHD / 1440p | 0−1 | 0−1 |
The average gaming FPS of GeForce GT 640M in Call of Duty: Warzone is 10% more, than Radeon RX 550X. | ||
low / 768p | 110−120 | 170−180 |
medium / 768p | 85−90 | 140−150 |
ultra / 1080p | 35−40 | 70−75 |
QHD / 1440p | − | 40−45 |
4K / 2160p | 10−11 | 30−33 |
high / 768p | 55−60 | 100−110 |
The average gaming FPS of Radeon RX 550X in Counter-Strike: Global Offensive is 72% more, than GeForce GT 640M. | ||
low / 768p | 70−75 | 55−60 |
ultra / 1080p | 12−14 | 27−30 |
medium / 1080p | 45−50 | 45−50 |
GeForce GT 640M and Radeon RX 550X have the same average FPS in Cyberpunk 2077. | ||
low / 768p | 70−75 | 90−95 |
medium / 768p | 40−45 | 75−80 |
ultra / 1080p | 18−20 | 45−50 |
The average gaming FPS of Radeon RX 550X in Dota 2 is 63% more, than GeForce GT 640M. | ||
high / 1080p | 2−3 | 12−14 |
ultra / 1080p | 2−3 | 10−12 |
4K / 2160p | 0−1 | 4−5 |
low / 720p | 9−10 | 27−30 |
medium / 1080p | 3−4 | 12−14 |
The average gaming FPS of Radeon RX 550X in Far Cry 5 is 300% more, than GeForce GT 640M. | ||
high / 1080p | − | 18−20 |
ultra / 1080p | 5−6 | 14−16 |
QHD / 1440p | 1−2 | − |
low / 720p | 45−50 | 75−80 |
medium / 1080p | 7−8 | 35−40 |
The average gaming FPS of Radeon RX 550X in Fortnite is 115% more, than GeForce GT 640M. | ||
high / 1080p | 2−3 | 16−18 |
ultra / 1080p | − | 14−16 |
QHD / 1440p | 0−1 | 4−5 |
low / 720p | 14−16 | 35−40 |
medium / 1080p | 5−6 | 20−22 |
The average gaming FPS of Radeon RX 550X in Forza Horizon 4 is 257% more, than GeForce GT 640M. | ||
low / 768p | 40−45 | 65−70 |
medium / 768p | − | 55−60 |
high / 1080p | 3−4 | 18−20 |
ultra / 1080p | 2−3 | 8−9 |
QHD / 1440p | 0−1 | 0−1 |
medium / 720p | 30−35 | − |
The average gaming FPS of Radeon RX 550X in Grand Theft Auto V is 93% more, than GeForce GT 640M. | ||
high / 1080p | 1−2 | 6−7 |
ultra / 1080p | 0−1 | 5−6 |
4K / 2160p | 0−1 | 1−2 |
low / 720p | 2−3 | 18−20 |
medium / 1080p | 2−3 | 9−10 |
The average gaming FPS of Radeon RX 550X in Metro Exodus is 450% more, than GeForce GT 640M. | ||
low / 768p | 85−90 | 100−110 |
high / 1080p | 55−60 | − |
ultra / 1080p | − | 90−95 |
medium / 1080p | − | 95−100 |
The average gaming FPS of Radeon RX 550X in Minecraft is 20% more, than GeForce GT 640M. | ||
high / 1080p | 14−16 | 18−20 |
ultra / 1080p | 12−14 | 14−16 |
low / 720p | 24−27 | 40−45 |
medium / 1080p | 14−16 | 20−22 |
The average gaming FPS of Radeon RX 550X in PLAYERUNKNOWN'S BATTLEGROUNDS is 41% more, than GeForce GT 640M. | ||
high / 1080p | − | 12−14 |
ultra / 1080p | 3−4 | 8−9 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 3−4 | 18−20 |
medium / 1080p | − | 12−14 |
The average gaming FPS of Radeon RX 550X in Red Dead Redemption 2 is 333% more, than GeForce GT 640M. | ||
low / 768p | 7−8 | 35−40 |
medium / 768p | 6−7 | 21−24 |
high / 1080p | 3−4 | 12−14 |
ultra / 1080p | − | 8−9 |
4K / 2160p | 0−1 | 7−8 |
The average gaming FPS of Radeon RX 550X in The Witcher 3: Wild Hunt is 380% more, than GeForce GT 640M. | ||
low / 768p | 70−75 | 90−95 |
medium / 768p | 35−40 | 50−55 |
ultra / 1080p | 12−14 | 24−27 |
high / 768p | 27−30 | 45−50 |
The average gaming FPS of Radeon RX 550X in World of Tanks is 45% more, than GeForce GT 640M. |
Full Specs
GeForce GT 640M | Radeon RX 550X | |
Architecture | Kepler | GCN 4.0 |
Code name | N13P-GS | Lexa |
Type | Laptop | Desktop |
Release date | 22 March 2012 | 16 December 2018 |
Pipelines | 384 | 512 |
Core clock speed | 1100 MHz | |
Boost Clock | 645 MHz | 1183 MHz |
Transistor count | 1,270 million | 2,200 million |
Manufacturing process technology | 28 nm | 14 nm |
Texture fill rate | 37.86 | |
Floating-point performance | 480.0 gflops | 1,211 gflops |
Length | 145 mm | |
Memory bus width | 128bit | 128 Bit |
Memory clock speed | 1800 - 4000 MHz | 6000 MHz |
Memory bandwidth | 96 GB/s | |
Shared memory | - | |
DirectX | 12 API | 12 (12_0) |
Shader Model | 5.1 | 6.4 |
OpenGL | 4.5 | 4.6 |
OpenCL | 1.1 | 2.0 |
Vulkan | 1.1.126 | 1.2.131 |
CUDA | + | |
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) | 18 Mh/s | |
Laptop size | medium sized | |
Optimus | + | |
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