GeForce GT 640M vs Radeon R7 M270DX
When comparing GeForce GT 640M and Radeon R7 M270DX, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 640M and Radeon R7 M270DX is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon R7 M270DX
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 R7 M270DX | |
| Power consumption (TDP) | 32 Watt | |
| Interface | PCIe 3.0 x16 | IGP |
| Memory type | DDR3\GDDR5 | System Shared |
| Maximum RAM amount | 2 GB | |
| Display Connectors | No outputs | No outputs |
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- GeForce GT 640M is connected by PCIe 3.0 x16, and Radeon R7 M270DX uses IGP interface.
- GeForce GT 640M is used in Laptops, and Radeon R7 M270DX - in Desktops.
- GeForce GT 640M is build with Kepler architecture, and Radeon R7 M270DX - with GCN 3.0.
- GeForce GT 640M and Radeon R7 M270DX are manufactured by 28 nm process technology.
Game benchmarks
| high / 1080p | 0−1 | 2−3 |
| ultra / 1080p | 0−1 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 10−12 | 12−14 |
| medium / 1080p | 2−3 | 3−4 |
| The average gaming FPS of Radeon R7 M270DX in Assassin's Creed Odyssey is 33% more, than GeForce GT 640M. | ||
| ultra / 1080p | 3−4 | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 14−16 |
| medium / 1080p | 4−5 | 5−6 |
| The average gaming FPS of Radeon R7 M270DX in Battlefield 5 is 14% more, than GeForce GT 640M. | ||
| low / 768p | 50−55 | 50−55 |
| high / 1080p | 45−50 | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GT 640M in Call of Duty: Warzone is 6% more, than Radeon R7 M270DX. | ||
| low / 768p | 110−120 | 120−130 |
| medium / 768p | 85−90 | 90−95 |
| ultra / 1080p | 35−40 | 35−40 |
| QHD / 1440p | − | 21−24 |
| 4K / 2160p | 10−11 | 16−18 |
| high / 768p | 55−60 | 60−65 |
| The average gaming FPS of Radeon R7 M270DX in Counter-Strike: Global Offensive is 8% more, than GeForce GT 640M. | ||
| low / 768p | 70−75 | 65−70 |
| ultra / 1080p | 12−14 | 18−20 |
| medium / 1080p | 45−50 | 45−50 |
| GeForce GT 640M and Radeon R7 M270DX have the same average FPS in Cyberpunk 2077. | ||
| low / 768p | 70−75 | 75−80 |
| medium / 768p | 40−45 | 45−50 |
| ultra / 1080p | 18−20 | 20−22 |
| The average gaming FPS of Radeon R7 M270DX in Dota 2 is 9% more, than GeForce GT 640M. | ||
| high / 1080p | 2−3 | 2−3 |
| ultra / 1080p | 2−3 | 2−3 |
| 4K / 2160p | 0−1 | 2−3 |
| low / 720p | 9−10 | 10−11 |
| medium / 1080p | 3−4 | 3−4 |
| GeForce GT 640M and Radeon R7 M270DX have the same average FPS in Far Cry 5. | ||
| ultra / 1080p | 5−6 | 5−6 |
| QHD / 1440p | 1−2 | 3−4 |
| low / 720p | 45−50 | 50−55 |
| medium / 1080p | 7−8 | 10−11 |
| The average gaming FPS of Radeon R7 M270DX in Fortnite is 20% more, than GeForce GT 640M. | ||
| high / 1080p | 2−3 | 5−6 |
| QHD / 1440p | 0−1 | 3−4 |
| 4K / 2160p | − | 2−3 |
| low / 720p | 14−16 | 16−18 |
| medium / 1080p | 5−6 | 7−8 |
| The average gaming FPS of Radeon R7 M270DX in Forza Horizon 4 is 42% more, than GeForce GT 640M. | ||
| low / 768p | 40−45 | 40−45 |
| high / 1080p | 3−4 | 3−4 |
| ultra / 1080p | 2−3 | 2−3 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 30−35 | 35−40 |
| The average gaming FPS of Radeon R7 M270DX in Grand Theft Auto V is 5% more, than GeForce GT 640M. | ||
| high / 1080p | 1−2 | 1−2 |
| ultra / 1080p | 0−1 | 0−1 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 2−3 | 4−5 |
| medium / 1080p | 2−3 | 3−4 |
| The average gaming FPS of Radeon R7 M270DX in Metro Exodus is 50% more, than GeForce GT 640M. | ||
| low / 768p | 85−90 | 90−95 |
| high / 1080p | 55−60 | 80−85 |
| ultra / 1080p | − | 70−75 |
| medium / 1080p | − | 85−90 |
| The average gaming FPS of Radeon R7 M270DX in Minecraft is 20% more, than GeForce GT 640M. | ||
| high / 1080p | 14−16 | − |
| ultra / 1080p | 12−14 | 12−14 |
| low / 720p | 24−27 | 27−30 |
| medium / 1080p | 14−16 | 14−16 |
| The average gaming FPS of Radeon R7 M270DX in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 640M. | ||
| ultra / 1080p | 3−4 | − |
| QHD / 1440p | 0−1 | − |
| low / 720p | 3−4 | 6−7 |
| The average gaming FPS of Radeon R7 M270DX in Red Dead Redemption 2 is 100% more, than GeForce GT 640M. | ||
| low / 768p | 7−8 | 9−10 |
| medium / 768p | 6−7 | 7−8 |
| high / 1080p | 3−4 | 4−5 |
| ultra / 1080p | − | 3−4 |
| 4K / 2160p | 0−1 | 1−2 |
| The average gaming FPS of Radeon R7 M270DX in The Witcher 3: Wild Hunt is 40% more, than GeForce GT 640M. | ||
| low / 768p | 70−75 | 70−75 |
| medium / 768p | 35−40 | 35−40 |
| ultra / 1080p | 12−14 | 12−14 |
| high / 768p | 27−30 | 30−35 |
| The average gaming FPS of Radeon R7 M270DX in World of Tanks is 2% more, than GeForce GT 640M. | ||
Full Specs
| GeForce GT 640M | Radeon R7 M270DX | |
| Architecture | Kepler | GCN 3.0 |
| Code name | N13P-GS | Topaz |
| Type | Laptop | Desktop |
| Release date | 22 March 2012 | 11 June 2014 |
| Pipelines | 384 | 384 |
| Core clock speed | 900 MHz | |
| Boost Clock | 645 MHz | 940 MHz |
| Transistor count | 1,270 million | 1,550 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 22.56 | |
| Floating-point performance | 480.0 gflops | |
| Memory bus width | 128bit | |
| Memory clock speed | 1800 - 4000 MHz | |
| Shared memory | - | |
| DirectX | 12 API | 12 (12_0) |
| Shader Model | 5.1 | 6.3 |
| 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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