GRID K520 vs Mobility Radeon HD 3870 X2
When choosing between GRID K520 and Mobility Radeon HD 3870 X2, 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 GRID K520 and Mobility Radeon HD 3870 X2.
GRID K520
Mobility Radeon HD 3870 X2 is a Laptop Graphics Card
Note: Mobility Radeon HD 3870 X2 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 Mobility Radeon HD 3870 X2 here:
Main Specs
| GRID K520 | Mobility Radeon HD 3870 X2 | |
| Power consumption (TDP) | 225 Watt | 110 Watt |
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Supplementary power connectors | 1x 8-pin | |
| Memory type | GDDR5 | GDDR3 |
| Maximum RAM amount | 4 GB | 512 MB |
| Display Connectors | No outputs | No outputs |
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- GRID K520 has 104% more power consumption, than Mobility Radeon HD 3870 X2.
- GRID K520 is connected by PCIe 3.0 x16, and Mobility Radeon HD 3870 X2 uses PCIe 2.0 x16 interface.
- Mobility Radeon HD 3870 X2 has 508 GB more memory, than GRID K520.
- GRID K520 is used in Desktops, and Mobility Radeon HD 3870 X2 - in Laptops.
- GRID K520 is build with Kepler architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
- Core clock speed of GRID K520 is 85 MHz higher, than Mobility Radeon HD 3870 X2.
- GRID K520 is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
- Memory clock speed of GRID K520 is 4150 MHz higher, than Mobility Radeon HD 3870 X2.
Game benchmarks
| high / 1080p | 16−18 | 6−7 |
| ultra / 1080p | 9−10 | 4−5 |
| QHD / 1440p | 4−5 | 0−1 |
| 4K / 2160p | 4−5 | − |
| low / 720p | 30−35 | 16−18 |
| medium / 1080p | 20−22 | 8−9 |
| The average gaming FPS of GRID K520 in Assassin's Creed Odyssey is 122% more, than Mobility Radeon HD 3870 X2. | ||
| high / 1080p | 24−27 | 12−14 |
| ultra / 1080p | 21−24 | 10−11 |
| QHD / 1440p | 9−10 | 0−1 |
| 4K / 2160p | 6−7 | − |
| low / 720p | 55−60 | 24−27 |
| medium / 1080p | 27−30 | 12−14 |
| The average gaming FPS of GRID K520 in Battlefield 5 is 120% more, than Mobility Radeon HD 3870 X2. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | − | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| GRID K520 and Mobility Radeon HD 3870 X2 have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 210−220 | 130−140 |
| medium / 768p | 180−190 | 110−120 |
| ultra / 1080p | 100−110 | 50−55 |
| QHD / 1440p | 55−60 | 27−30 |
| 4K / 2160p | 30−35 | 27−30 |
| high / 768p | 140−150 | 80−85 |
| The average gaming FPS of GRID K520 in Counter-Strike: Global Offensive is 68% more, than Mobility Radeon HD 3870 X2. | ||
| low / 768p | 55−60 | 55−60 |
| ultra / 1080p | 40−45 | 18−20 |
| medium / 1080p | 45−50 | 45−50 |
| The average gaming FPS of GRID K520 in Cyberpunk 2077 is 19% more, than Mobility Radeon HD 3870 X2. | ||
| low / 768p | 110−120 | 80−85 |
| medium / 768p | 95−100 | 55−60 |
| ultra / 1080p | 65−70 | 30−35 |
| The average gaming FPS of GRID K520 in Dota 2 is 63% more, than Mobility Radeon HD 3870 X2. | ||
| high / 1080p | 18−20 | 8−9 |
| ultra / 1080p | 18−20 | 7−8 |
| QHD / 1440p | 16−18 | − |
| 4K / 2160p | 6−7 | 3−4 |
| low / 720p | 40−45 | 18−20 |
| medium / 1080p | 21−24 | 8−9 |
| The average gaming FPS of GRID K520 in Far Cry 5 is 133% more, than Mobility Radeon HD 3870 X2. | ||
| high / 1080p | 27−30 | 14−16 |
| ultra / 1080p | 21−24 | 10−11 |
| QHD / 1440p | 16−18 | − |
| low / 720p | 100−110 | 60−65 |
| medium / 1080p | 55−60 | 21−24 |
| The average gaming FPS of GRID K520 in Fortnite is 96% more, than Mobility Radeon HD 3870 X2. | ||
| high / 1080p | 27−30 | 12−14 |
| ultra / 1080p | 21−24 | 10−12 |
| QHD / 1440p | 10−11 | 1−2 |
| 4K / 2160p | 10−11 | − |
| low / 720p | 55−60 | 24−27 |
| medium / 1080p | 30−35 | 14−16 |
| The average gaming FPS of GRID K520 in Forza Horizon 4 is 130% more, than Mobility Radeon HD 3870 X2. | ||
| low / 768p | 90−95 | 50−55 |
| medium / 768p | 80−85 | 45−50 |
| high / 1080p | 30−35 | 12−14 |
| ultra / 1080p | 12−14 | 6−7 |
| QHD / 1440p | 4−5 | 0−1 |
| The average gaming FPS of GRID K520 in Grand Theft Auto V is 89% more, than Mobility Radeon HD 3870 X2. | ||
| high / 1080p | 10−11 | 4−5 |
| ultra / 1080p | 8−9 | 3−4 |
| 4K / 2160p | 3−4 | 0−1 |
| low / 720p | 30−35 | 12−14 |
| medium / 1080p | 14−16 | 6−7 |
| The average gaming FPS of GRID K520 in Metro Exodus is 166% more, than Mobility Radeon HD 3870 X2. | ||
| low / 768p | 110−120 | 95−100 |
| high / 1080p | − | 85−90 |
| ultra / 1080p | − | 80−85 |
| medium / 1080p | 100−110 | 90−95 |
| The average gaming FPS of GRID K520 in Minecraft is 15% more, than Mobility Radeon HD 3870 X2. | ||
| high / 1080p | 24−27 | 16−18 |
| ultra / 1080p | 18−20 | 14−16 |
| low / 720p | 60−65 | 30−35 |
| medium / 1080p | 24−27 | 18−20 |
| The average gaming FPS of GRID K520 in PLAYERUNKNOWN'S BATTLEGROUNDS is 65% more, than Mobility Radeon HD 3870 X2. | ||
| high / 1080p | 14−16 | − |
| ultra / 1080p | 10−11 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 30−35 | 12−14 |
| medium / 1080p | 16−18 | 10−12 |
| The average gaming FPS of GRID K520 in Red Dead Redemption 2 is 100% more, than Mobility Radeon HD 3870 X2. | ||
| low / 768p | 60−65 | 24−27 |
| medium / 768p | 35−40 | 16−18 |
| high / 1080p | 20−22 | 9−10 |
| ultra / 1080p | 12−14 | 6−7 |
| 4K / 2160p | 8−9 | 6−7 |
| The average gaming FPS of GRID K520 in The Witcher 3: Wild Hunt is 115% more, than Mobility Radeon HD 3870 X2. | ||
| low / 768p | 100−110 | 85−90 |
| medium / 768p | 60−65 | 45−50 |
| ultra / 1080p | 35−40 | 18−20 |
| high / 768p | 55−60 | 35−40 |
| The average gaming FPS of GRID K520 in World of Tanks is 38% more, than Mobility Radeon HD 3870 X2. | ||
Full Specs
| GRID K520 | Mobility Radeon HD 3870 X2 | |
| Architecture | Kepler | RV6xx |
| Code name | GK104 | M88-XT CF |
| Type | Workstation | Laptop |
| Release date | 23 July 2013 | 1 September 2008 |
| Pipelines | 1536 | 640 |
| Core clock speed | 745 MHz | 660 MHz |
| Transistor count | 3,540 million | 666 million |
| Manufacturing process technology | 28 nm | 55 nm |
| Texture fill rate | 95.36 | 10.56 |
| Floating-point performance | 2x 2,448 gflops | 2x 422.4 gflops |
| Length | 267 mm | |
| Memory bus width | 256 Bit | 256 Bit |
| Memory clock speed | 5000 MHz | 850 MHz |
| Memory bandwidth | 160.0 GB/s | 54.4 GB/s |
| Shared memory | - | |
| DirectX | 12 (11_0) | 10.1 (10_1) |
| Shader Model | 5.1 | 4.1 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | N/A |
| Vulkan | 1.1.126 | N/A |
| CUDA | 3.0 | |
| Bitcoin / BTC (SHA256) | 76 Mh/s | |
| Laptop size | large | |
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