Radeon HD 6850 X2 vs Radeon RX 640
When comparing Radeon HD 6850 X2 and Radeon RX 640, 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 Radeon HD 6850 X2 and Radeon RX 640 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon HD 6850 X2
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 HD 6850 X2 | Radeon RX 640 | |
| Power consumption (TDP) | 254 Watt | 50 Watt |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x8 |
| Supplementary power connectors | 2x 8-pin | None |
| Memory type | GDDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Display Connectors | 2x DVI, 1x HDMI, 1x DisplayPort | 1x DVI, 1x HDMI, 1x DisplayPort |
| Check Price |
- Radeon HD 6850 X2 has 408% more power consumption, than Radeon RX 640.
- Radeon HD 6850 X2 is connected by PCIe 2.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
- Radeon RX 640 has 2 GB more memory, than Radeon HD 6850 X2.
- Radeon HD 6850 X2 is used in Desktops, and Radeon RX 640 - in Laptops.
- Radeon HD 6850 X2 is build with TeraScale 2 architecture, and Radeon RX 640 - with Polaris.
- Core clock speed of Radeon RX 640 is 418 MHz higher, than Radeon HD 6850 X2.
- Radeon HD 6850 X2 is manufactured by 40 nm process technology, and Radeon RX 640 - by 14 nm process technology.
- Memory clock speed of Radeon RX 640 is 1800 MHz higher, than Radeon HD 6850 X2.
Game benchmarks
| high / 1080p | 12−14 | 5−6 |
| ultra / 1080p | 7−8 | 3−4 |
| QHD / 1440p | 2−3 | 2−3 |
| low / 720p | 27−30 | 16−18 |
| medium / 1080p | 16−18 | 7−8 |
| The average gaming FPS of Radeon HD 6850 X2 in Assassin's Creed Odyssey is 85% more, than Radeon RX 640. | ||
| high / 1080p | 21−24 | 10−12 |
| ultra / 1080p | 18−20 | 8−9 |
| QHD / 1440p | 4−5 | 0−1 |
| low / 720p | 45−50 | 24−27 |
| medium / 1080p | 21−24 | 10−12 |
| The average gaming FPS of Radeon HD 6850 X2 in Battlefield 5 is 92% more, than Radeon RX 640. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | − | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| Radeon HD 6850 X2 and Radeon RX 640 have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 190−200 | 130−140 |
| medium / 768p | 160−170 | 100−110 |
| ultra / 1080p | 85−90 | 50−55 |
| QHD / 1440p | 45−50 | 27−30 |
| 4K / 2160p | 30−33 | 12−14 |
| high / 768p | 120−130 | 80−85 |
| The average gaming FPS of Radeon HD 6850 X2 in Counter-Strike: Global Offensive is 56% more, than Radeon RX 640. | ||
| low / 768p | 55−60 | 50−55 |
| ultra / 1080p | 35−40 | 18−20 |
| medium / 1080p | 45−50 | 45−50 |
| The average gaming FPS of Radeon HD 6850 X2 in Cyberpunk 2077 is 20% more, than Radeon RX 640. | ||
| low / 768p | 100−110 | 80−85 |
| medium / 768p | 85−90 | 55−60 |
| ultra / 1080p | 55−60 | 30−35 |
| The average gaming FPS of Radeon HD 6850 X2 in Dota 2 is 45% more, than Radeon RX 640. | ||
| high / 1080p | 14−16 | 7−8 |
| ultra / 1080p | 14−16 | 5−6 |
| 4K / 2160p | 5−6 | 5−6 |
| low / 720p | 30−35 | 18−20 |
| medium / 1080p | 16−18 | 8−9 |
| The average gaming FPS of Radeon HD 6850 X2 in Far Cry 5 is 88% more, than Radeon RX 640. | ||
| high / 1080p | 21−24 | 7−8 |
| ultra / 1080p | 16−18 | 0−1 |
| QHD / 1440p | 16−18 | 0−1 |
| low / 720p | 85−90 | 60−65 |
| medium / 1080p | 45−50 | 18−20 |
| The average gaming FPS of Radeon HD 6850 X2 in Fortnite is 79% more, than Radeon RX 640. | ||
| high / 1080p | 21−24 | 10−11 |
| ultra / 1080p | 16−18 | − |
| QHD / 1440p | 7−8 | − |
| 4K / 2160p | − | 8−9 |
| low / 720p | 45−50 | 24−27 |
| medium / 1080p | 24−27 | 12−14 |
| The average gaming FPS of Radeon HD 6850 X2 in Forza Horizon 4 is 93% more, than Radeon RX 640. | ||
| low / 768p | 75−80 | 50−55 |
| medium / 768p | 65−70 | − |
| high / 1080p | 24−27 | 10−12 |
| ultra / 1080p | 10−11 | 5−6 |
| QHD / 1440p | 1−2 | − |
| medium / 720p | − | 45−50 |
| The average gaming FPS of Radeon HD 6850 X2 in Grand Theft Auto V is 60% more, than Radeon RX 640. | ||
| high / 1080p | 8−9 | 3−4 |
| ultra / 1080p | 6−7 | 1−2 |
| 4K / 2160p | 2−3 | − |
| low / 720p | 24−27 | 10−11 |
| medium / 1080p | 10−12 | 5−6 |
| The average gaming FPS of Radeon HD 6850 X2 in Metro Exodus is 140% more, than Radeon RX 640. | ||
| low / 768p | 100−110 | 90−95 |
| ultra / 1080p | 95−100 | 80−85 |
| medium / 1080p | 100−110 | − |
| The average gaming FPS of Radeon HD 6850 X2 in Minecraft is 16% more, than Radeon RX 640. | ||
| high / 1080p | 21−24 | 6−7 |
| ultra / 1080p | 16−18 | 2−3 |
| 4K / 2160p | − | 0−1 |
| low / 720p | 50−55 | 27−30 |
| medium / 1080p | 21−24 | 10−11 |
| The average gaming FPS of Radeon HD 6850 X2 in PLAYERUNKNOWN'S BATTLEGROUNDS is 133% more, than Radeon RX 640. | ||
| high / 1080p | 12−14 | − |
| ultra / 1080p | 9−10 | − |
| QHD / 1440p | 0−1 | − |
| low / 720p | 24−27 | 10−12 |
| medium / 1080p | 14−16 | 9−10 |
| The average gaming FPS of Radeon HD 6850 X2 in Red Dead Redemption 2 is 100% more, than Radeon RX 640. | ||
| low / 768p | 45−50 | 21−24 |
| medium / 768p | 27−30 | 14−16 |
| high / 1080p | 16−18 | 6−7 |
| ultra / 1080p | 9−10 | 4−5 |
| 4K / 2160p | 7−8 | 3−4 |
| The average gaming FPS of Radeon HD 6850 X2 in The Witcher 3: Wild Hunt is 120% more, than Radeon RX 640. | ||
| low / 768p | 95−100 | 75−80 |
| medium / 768p | 55−60 | 40−45 |
| ultra / 1080p | 30−35 | 18−20 |
| high / 768p | 50−55 | 35−40 |
| The average gaming FPS of Radeon HD 6850 X2 in World of Tanks is 36% more, than Radeon RX 640. | ||
Full Specs
| Radeon HD 6850 X2 | Radeon RX 640 | |
| Architecture | TeraScale 2 | Polaris |
| Code name | Barts | Polaris 12 |
| Type | Desktop | Laptop |
| Release date | 19 September 2011 | 12 August 2019 |
| Pipelines | 960 | 640 |
| Core clock speed | 800 MHz | 1218 MHz |
| Boost Clock | 1218 MHz | |
| Transistor count | 1,700 million | 2,200 million |
| Manufacturing process technology | 40 nm | 14 nm |
| Texture fill rate | 38.40 | 38.98 |
| Floating-point performance | 2x 1,536.0 gflops | |
| Memory bus width | 256 Bit | 64 Bit |
| Memory clock speed | 4200 MHz | 6000 MHz |
| Memory bandwidth | 134.4 GB/s | 112.0 GB/s |
| Shared memory | - | |
| DirectX | 11.2 (11_0) | 12 (12_0) |
| Shader Model | 5.0 | 6.4 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | N/A | 1.2.131 |
| FreeSync | + | |
| Laptop size | large | |
| Check Price |