Radeon R7 M270DX vs Radeon RX 640
When choosing between Radeon R7 M270DX and Radeon RX 640, 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 Radeon R7 M270DX and Radeon RX 640.
Radeon R7 M270DX
Radeon RX 640 is a Laptop Graphics Card
Note: Radeon RX 640 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 Radeon RX 640 here:
Main Specs
| Radeon R7 M270DX | Radeon RX 640 | |
| Power consumption (TDP) | 50 Watt | |
| Interface | IGP | PCIe 3.0 x8 |
| Supplementary power connectors | None | |
| Memory type | System Shared | GDDR5 |
| Maximum RAM amount | 4 GB | |
| Display Connectors | No outputs | 1x DVI, 1x HDMI, 1x DisplayPort |
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- Radeon R7 M270DX is connected by IGP, and Radeon RX 640 uses PCIe 3.0 x8 interface.
- Radeon R7 M270DX is used in Desktops, and Radeon RX 640 - in Laptops.
- Radeon R7 M270DX is build with GCN 3.0 architecture, and Radeon RX 640 - with Polaris.
- Core clock speed of Radeon RX 640 is 318 MHz higher, than Radeon R7 M270DX.
- Radeon R7 M270DX is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
Game benchmarks
| high / 1080p | 2−3 | 5−6 |
| ultra / 1080p | 0−1 | 3−4 |
| QHD / 1440p | 0−1 | 2−3 |
| low / 720p | 12−14 | 16−18 |
| medium / 1080p | 3−4 | 7−8 |
| The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 66% more, than Radeon R7 M270DX. | ||
| high / 1080p | − | 10−12 |
| ultra / 1080p | 4−5 | 8−9 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 24−27 |
| medium / 1080p | 5−6 | 10−12 |
| The average gaming FPS of Radeon RX 640 in Battlefield 5 is 87% more, than Radeon R7 M270DX. | ||
| low / 768p | 50−55 | 45−50 |
| high / 1080p | 40−45 | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of Radeon R7 M270DX in Call of Duty: Warzone is 4% more, than Radeon RX 640. | ||
| low / 768p | 120−130 | 130−140 |
| medium / 768p | 90−95 | 100−110 |
| ultra / 1080p | 35−40 | 50−55 |
| QHD / 1440p | 21−24 | 27−30 |
| 4K / 2160p | 16−18 | 12−14 |
| high / 768p | 60−65 | 80−85 |
| The average gaming FPS of Radeon RX 640 in Counter-Strike: Global Offensive is 16% more, than Radeon R7 M270DX. | ||
| low / 768p | 65−70 | 50−55 |
| ultra / 1080p | 18−20 | 18−20 |
| medium / 1080p | 45−50 | 45−50 |
| The average gaming FPS of Radeon R7 M270DX in Cyberpunk 2077 is 12% more, than Radeon RX 640. | ||
| low / 768p | 75−80 | 80−85 |
| medium / 768p | 45−50 | 55−60 |
| ultra / 1080p | 20−22 | 30−35 |
| The average gaming FPS of Radeon RX 640 in Dota 2 is 18% more, than Radeon R7 M270DX. | ||
| high / 1080p | 2−3 | 7−8 |
| ultra / 1080p | 2−3 | 5−6 |
| 4K / 2160p | 2−3 | 5−6 |
| low / 720p | 10−11 | 18−20 |
| medium / 1080p | 3−4 | 8−9 |
| The average gaming FPS of Radeon RX 640 in Far Cry 5 is 125% more, than Radeon R7 M270DX. | ||
| high / 1080p | − | 7−8 |
| ultra / 1080p | 5−6 | 0−1 |
| QHD / 1440p | 3−4 | 0−1 |
| low / 720p | 50−55 | 60−65 |
| medium / 1080p | 10−11 | 18−20 |
| The average gaming FPS of Radeon RX 640 in Fortnite is 29% more, than Radeon R7 M270DX. | ||
| high / 1080p | 5−6 | 10−11 |
| QHD / 1440p | 3−4 | − |
| 4K / 2160p | 2−3 | 8−9 |
| low / 720p | 16−18 | 24−27 |
| medium / 1080p | 7−8 | 12−14 |
| The average gaming FPS of Radeon RX 640 in Forza Horizon 4 is 75% more, than Radeon R7 M270DX. | ||
| low / 768p | 40−45 | 50−55 |
| high / 1080p | 3−4 | 10−12 |
| ultra / 1080p | 2−3 | 5−6 |
| QHD / 1440p | 0−1 | − |
| medium / 720p | 35−40 | 45−50 |
| The average gaming FPS of Radeon RX 640 in Grand Theft Auto V is 38% more, than Radeon R7 M270DX. | ||
| high / 1080p | 1−2 | 3−4 |
| ultra / 1080p | 0−1 | 1−2 |
| 4K / 2160p | 0−1 | − |
| low / 720p | 4−5 | 10−11 |
| medium / 1080p | 3−4 | 5−6 |
| The average gaming FPS of Radeon RX 640 in Metro Exodus is 100% more, than Radeon R7 M270DX. | ||
| low / 768p | 90−95 | 90−95 |
| high / 1080p | 80−85 | − |
| ultra / 1080p | 70−75 | 80−85 |
| medium / 1080p | 85−90 | − |
| The average gaming FPS of Radeon RX 640 in Minecraft is 6% more, than Radeon R7 M270DX. | ||
| high / 1080p | − | 6−7 |
| ultra / 1080p | 12−14 | 2−3 |
| 4K / 2160p | − | 0−1 |
| low / 720p | 27−30 | 27−30 |
| medium / 1080p | 14−16 | 10−11 |
| The average gaming FPS of Radeon R7 M270DX in PLAYERUNKNOWN'S BATTLEGROUNDS is 38% more, than Radeon RX 640. | ||
| low / 720p | 6−7 | 10−12 |
| medium / 1080p | − | 9−10 |
| The average gaming FPS of Radeon RX 640 in Red Dead Redemption 2 is 83% more, than Radeon R7 M270DX. | ||
| low / 768p | 9−10 | 21−24 |
| medium / 768p | 7−8 | 14−16 |
| high / 1080p | 4−5 | 6−7 |
| ultra / 1080p | 3−4 | 4−5 |
| 4K / 2160p | 1−2 | 3−4 |
| The average gaming FPS of Radeon RX 640 in The Witcher 3: Wild Hunt is 100% more, than Radeon R7 M270DX. | ||
| low / 768p | 70−75 | 75−80 |
| medium / 768p | 35−40 | 40−45 |
| ultra / 1080p | 12−14 | 18−20 |
| high / 768p | 30−35 | 35−40 |
| The average gaming FPS of Radeon RX 640 in World of Tanks is 15% more, than Radeon R7 M270DX. | ||
Full Specs
| Radeon R7 M270DX | Radeon RX 640 | |
| Architecture | GCN 3.0 | Polaris |
| Code name | Topaz | Polaris 12 |
| Type | Desktop | Laptop |
| Release date | 11 June 2014 | 12 August 2019 |
| Pipelines | 384 | 640 |
| Core clock speed | 900 MHz | 1218 MHz |
| Boost Clock | 940 MHz | 1218 MHz |
| Transistor count | 1,550 million | 2,200 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Texture fill rate | 22.56 | 38.98 |
| Memory bus width | 64 Bit | |
| Memory clock speed | 6000 MHz | |
| Memory bandwidth | 112.0 GB/s | |
| Shared memory | - | |
| DirectX | 12 (12_0) | 12 (12_0) |
| Shader Model | 6.3 | 6.4 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.2.131 | 1.2.131 |
| FreeSync | + | |
| Laptop size | large | |
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