Mobility Radeon HD 3870 X2 vs Radeon HD 7870 XT
In this comparison between Mobility Radeon HD 3870 X2 and Radeon HD 7870 XT you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Mobility Radeon HD 3870 X2 will be the best choice, for others Radeon HD 7870 XT will be their preference. Study the comparison tables below and make your choice.
Radeon HD 7870 XT
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
Mobility Radeon HD 3870 X2 | Radeon HD 7870 XT | |
Power consumption (TDP) | 110 Watt | 185 Watt |
Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
Supplementary power connectors | 2x 6-pin | |
Memory type | GDDR3 | GDDR5 |
Maximum RAM amount | 512 MB | 2 GB |
Display Connectors | No outputs | 1x DVI, 1x HDMI, 2x mini-DisplayPort |
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- Radeon HD 7870 XT has 68% more power consumption, than Mobility Radeon HD 3870 X2.
- Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon HD 7870 XT uses PCIe 3.0 x16 interface.
- Mobility Radeon HD 3870 X2 has 510 GB more memory, than Radeon HD 7870 XT.
- Mobility Radeon HD 3870 X2 is used in Laptops, and Radeon HD 7870 XT - in Desktops.
- Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon HD 7870 XT - with GCN 1.0.
- Core clock speed of Radeon HD 7870 XT is 265 MHz higher, than Mobility Radeon HD 3870 X2.
- Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon HD 7870 XT - by 28 nm process technology.
- Memory clock speed of Radeon HD 7870 XT is 5150 MHz higher, than Mobility Radeon HD 3870 X2.
Game benchmarks
high / 1080p | 6−7 | 35−40 |
ultra / 1080p | 4−5 | 21−24 |
QHD / 1440p | 0−1 | 16−18 |
4K / 2160p | − | 10−11 |
low / 720p | 16−18 | 60−65 |
medium / 1080p | 8−9 | 40−45 |
The average gaming FPS of Radeon HD 7870 XT in Assassin's Creed Odyssey is 355% more, than Mobility Radeon HD 3870 X2. | ||
high / 1080p | 12−14 | 55−60 |
ultra / 1080p | 10−11 | 45−50 |
QHD / 1440p | 0−1 | 35−40 |
4K / 2160p | − | 18−20 |
low / 720p | 24−27 | 100−110 |
medium / 1080p | 12−14 | 60−65 |
The average gaming FPS of Radeon HD 7870 XT in Battlefield 5 is 353% more, than Mobility Radeon HD 3870 X2. | ||
low / 768p | 45−50 | 50−55 |
high / 1080p | 45−50 | − |
QHD / 1440p | 0−1 | 0−1 |
The average gaming FPS of Radeon HD 7870 XT in Call of Duty: Warzone is 10% more, than Mobility Radeon HD 3870 X2. | ||
low / 768p | 130−140 | 250−260 |
medium / 768p | 110−120 | 220−230 |
ultra / 1080p | 50−55 | 180−190 |
QHD / 1440p | 27−30 | 110−120 |
4K / 2160p | 27−30 | 70−75 |
high / 768p | 80−85 | 210−220 |
The average gaming FPS of Radeon HD 7870 XT in Counter-Strike: Global Offensive is 142% more, than Mobility Radeon HD 3870 X2. | ||
low / 768p | 55−60 | 60−65 |
ultra / 1080p | 18−20 | − |
medium / 1080p | 45−50 | 55−60 |
The average gaming FPS of Radeon HD 7870 XT in Cyberpunk 2077 is 15% more, than Mobility Radeon HD 3870 X2. | ||
low / 768p | 80−85 | 120−130 |
medium / 768p | 55−60 | 110−120 |
ultra / 1080p | 30−35 | 100−110 |
The average gaming FPS of Radeon HD 7870 XT in Dota 2 is 101% more, than Mobility Radeon HD 3870 X2. | ||
high / 1080p | 8−9 | 45−50 |
ultra / 1080p | 7−8 | 40−45 |
QHD / 1440p | − | 27−30 |
4K / 2160p | 3−4 | 14−16 |
low / 720p | 18−20 | 80−85 |
medium / 1080p | 8−9 | 45−50 |
The average gaming FPS of Radeon HD 7870 XT in Far Cry 5 is 422% more, than Mobility Radeon HD 3870 X2. | ||
high / 1080p | 14−16 | 60−65 |
ultra / 1080p | 10−11 | 45−50 |
QHD / 1440p | − | 27−30 |
4K / 2160p | − | 27−30 |
low / 720p | 60−65 | 180−190 |
medium / 1080p | 21−24 | 110−120 |
The average gaming FPS of Radeon HD 7870 XT in Fortnite is 277% more, than Mobility Radeon HD 3870 X2. | ||
high / 1080p | 12−14 | 60−65 |
ultra / 1080p | 10−12 | 45−50 |
QHD / 1440p | 1−2 | 30−35 |
4K / 2160p | − | 24−27 |
low / 720p | 24−27 | 100−110 |
medium / 1080p | 14−16 | 65−70 |
The average gaming FPS of Radeon HD 7870 XT in Forza Horizon 4 is 384% more, than Mobility Radeon HD 3870 X2. | ||
low / 768p | 50−55 | 140−150 |
medium / 768p | 45−50 | 120−130 |
high / 1080p | 12−14 | 70−75 |
ultra / 1080p | 6−7 | 30−35 |
QHD / 1440p | 0−1 | 21−24 |
The average gaming FPS of Radeon HD 7870 XT in Grand Theft Auto V is 220% more, than Mobility Radeon HD 3870 X2. | ||
high / 1080p | 4−5 | 24−27 |
ultra / 1080p | 3−4 | 20−22 |
QHD / 1440p | − | 16−18 |
4K / 2160p | 0−1 | 8−9 |
low / 720p | 12−14 | 65−70 |
medium / 1080p | 6−7 | 30−35 |
The average gaming FPS of Radeon HD 7870 XT in Metro Exodus is 500% more, than Mobility Radeon HD 3870 X2. | ||
low / 768p | 95−100 | 130−140 |
high / 1080p | 85−90 | − |
ultra / 1080p | 80−85 | − |
medium / 1080p | 90−95 | 120−130 |
The average gaming FPS of Radeon HD 7870 XT in Minecraft is 36% more, than Mobility Radeon HD 3870 X2. | ||
high / 1080p | 16−18 | − |
ultra / 1080p | 14−16 | 14−16 |
low / 720p | 30−35 | 100−110 |
medium / 1080p | 18−20 | 18−20 |
The average gaming FPS of Radeon HD 7870 XT in PLAYERUNKNOWN'S BATTLEGROUNDS is 109% more, than Mobility Radeon HD 3870 X2. | ||
high / 1080p | − | 24−27 |
ultra / 1080p | 7−8 | 16−18 |
QHD / 1440p | 0−1 | 10−11 |
4K / 2160p | − | 7−8 |
low / 720p | 12−14 | 65−70 |
medium / 1080p | 10−12 | 35−40 |
The average gaming FPS of Radeon HD 7870 XT in Red Dead Redemption 2 is 300% more, than Mobility Radeon HD 3870 X2. | ||
low / 768p | 24−27 | 130−140 |
medium / 768p | 16−18 | 85−90 |
high / 1080p | 9−10 | 45−50 |
ultra / 1080p | 6−7 | 24−27 |
4K / 2160p | 6−7 | 16−18 |
The average gaming FPS of Radeon HD 7870 XT in The Witcher 3: Wild Hunt is 376% more, than Mobility Radeon HD 3870 X2. | ||
low / 768p | 85−90 | 90−95 |
medium / 768p | 45−50 | 60−65 |
ultra / 1080p | 18−20 | 50−55 |
high / 768p | 35−40 | 60−65 |
The average gaming FPS of Radeon HD 7870 XT in World of Tanks is 42% more, than Mobility Radeon HD 3870 X2. |
Full Specs
Mobility Radeon HD 3870 X2 | Radeon HD 7870 XT | |
Architecture | RV6xx | GCN 1.0 |
Code name | M88-XT CF | Tahiti |
Type | Laptop | Desktop |
Release date | 1 September 2008 | 19 November 2012 |
Pipelines | 640 | 1536 |
Core clock speed | 660 MHz | 925 MHz |
Boost Clock | 975 MHz | |
Transistor count | 666 million | 4,313 million |
Manufacturing process technology | 55 nm | 28 nm |
Texture fill rate | 10.56 | 93.60 |
Floating-point performance | 2x 422.4 gflops | 2,995 gflops |
Length | 267 mm | |
Memory bus width | 256 Bit | 256 Bit |
Memory clock speed | 850 MHz | 6000 MHz |
Memory bandwidth | 54.4 GB/s | 192.0 GB/s |
Shared memory | - | |
DirectX | 10.1 (10_1) | 12 (11_1) |
Shader Model | 4.1 | 5.1 |
OpenGL | 3.3 | 4.6 |
OpenCL | N/A | 1.2 |
Vulkan | N/A | 1.2.131 |
Bitcoin / BTC (SHA256) | 346 Mh/s | |
Laptop size | large | |
Ethereum / ETH (DaggerHashimoto) | 14.5 Mh/s | |
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