Mobility Radeon HD 3870 vs RX 550

Place in performance ranking	519	980
Place by popularity	13	not in top-100
Cost-effectiveness evaluation	3.05	no data
Architecture	GCN 4.0 (2016−2020)	RV6xx (2007−2010)
GPU code name	Lexa	M88-XT
Market segment	Desktop	Laptop
Release date	20 April 2017 (7 years ago)	1 March 2008 (16 years ago)
Launch price (MSRP)	$79	no data
Current price	$121 (1.5x MSRP)	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	512	320
Core clock speed	1100 MHz	660 MHz
Boost clock speed	1183 MHz	no data
Number of transistors	2,200 million	666 million
Manufacturing process technology	14 nm	55 nm
Power consumption (TDP)	50 Watt	55 Watt
Texture fill rate	37.86	10.56
Floating-point performance	1,211 gflops	422.4 gflops

Form factor & compatibility

Information on Radeon RX 550 and Mobility Radeon HD 3870 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Laptop size	no data	large
Interface	PCIe 3.0 x8	PCIe 2.0 x16
Length	145 mm	no data
Width	2-slot	no data
Supplementary power connectors	None	no data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR5	GDDR3
Maximum RAM amount	4 GB	512 MB
Memory bus width	128 Bit	256 Bit
Memory clock speed	7000 MHz	850 MHz
Memory bandwidth	112.0 GB/s	54.4 GB/s
Shared memory	no data	-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	1x DVI, 1x HDMI, 1x DisplayPort	No outputs
HDMI	+	no data

API compatibility

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX	12 (12_0)	10.1 (10_1)
Shader Model	6.4	4.1
OpenGL	4.6	3.3
OpenCL	2.0	N/A
Vulkan	1.2.131	N/A

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

21−24

+425%

4−5
−425%

Full HD
Medium Preset

Assassin's Creed Odyssey	10−11 +400%	2−3 −400%
Call of Duty: Modern Warfare	21−24 +425%	4−5 −425%
Cyberpunk 2077	21−24 +425%	4−5 −425%
Far Cry 5	5−6 +400%	1−2 −400%
Far Cry New Dawn	14−16 +367%	3−4 −367%
Forza Horizon 4	14−16 +367%	3−4 −367%
Hitman 3	14−16 +367%	3−4 −367%
Horizon Zero Dawn	70−75 +400%	14−16 −400%
Red Dead Redemption 2	10−11 +400%	2−3 −400%
Shadow of the Tomb Raider	45−50 +400%	9−10 −400%
Watch Dogs: Legion	60−65 +400%	12−14 −400%

Full HD
High Preset

Assassin's Creed Odyssey	10−11 +400%	2−3 −400%
Call of Duty: Modern Warfare	21−24 +425%	4−5 −425%
Cyberpunk 2077	21−24 +425%	4−5 −425%
Far Cry 5	5−6 +400%	1−2 −400%
Far Cry New Dawn	14−16 +367%	3−4 −367%
Forza Horizon 4	14−16 +367%	3−4 −367%
Hitman 3	14−16 +367%	3−4 −367%
Horizon Zero Dawn	70−75 +400%	14−16 −400%
Red Dead Redemption 2	10−11 +400%	2−3 −400%
Shadow of the Tomb Raider	45−50 +400%	9−10 −400%
The Witcher 3: Wild Hunt	21−24 +425%	4−5 −425%
Watch Dogs: Legion	60−65 +400%	12−14 −400%

Full HD
Ultra Preset

Assassin's Creed Odyssey	10−11 +400%	2−3 −400%
Call of Duty: Modern Warfare	21−24 +425%	4−5 −425%
Cyberpunk 2077	21−24 +425%	4−5 −425%
Far Cry 5	5−6 +400%	1−2 −400%
Forza Horizon 4	14−16 +367%	3−4 −367%
Horizon Zero Dawn	70−75 +400%	14−16 −400%
Shadow of the Tomb Raider	45−50 +400%	9−10 −400%
The Witcher 3: Wild Hunt	21−24 +425%	4−5 −425%
Watch Dogs: Legion	60−65 +400%	12−14 −400%

Full HD
Epic Preset

Red Dead Redemption 2

10−11

+400%

2−3
−400%

1440p
High Preset

Battlefield 5	5−6 +400%	1−2 −400%
Far Cry New Dawn	5−6 +400%	1−2 −400%

1440p
Ultra Preset

Assassin's Creed Odyssey	5−6 +400%	1−2 −400%
Call of Duty: Modern Warfare	21−24 +425%	4−5 −425%
Cyberpunk 2077	5−6 +400%	1−2 −400%
Far Cry 5	10−11 +400%	2−3 −400%
Forza Horizon 4	5−6 +400%	1−2 −400%
Hitman 3	35−40 +400%	7−8 −400%
Horizon Zero Dawn	24−27 +380%	5−6 −380%
The Witcher 3: Wild Hunt	5−6 +400%	1−2 −400%

1440p
Epic Preset

Red Dead Redemption 2

21−24

+425%

4−5
−425%

4K
High Preset

Far Cry New Dawn	5−6 +400%	1−2 −400%
Horizon Zero Dawn	5−6 +400%	1−2 −400%

4K
Ultra Preset

Assassin's Creed Odyssey	10−11 +400%	2−3 −400%
Assassin's Creed Valhalla	0−1	0−1
Call of Duty: Modern Warfare	0−1	0−1
Far Cry 5	0−1	0−1
Horizon Zero Dawn	5−6 +400%	1−2 −400%
Metro Exodus	21−24 +425%	4−5 −425%

4K
Epic Preset

Red Dead Redemption 2

14−16

+367%

3−4
−367%

Pros & cons summary

Performance score	7.06	1.34
Recency	20 April 2017	1 March 2008
Maximum RAM amount	4 GB	512 MB
Chip lithography	14 nm	55 nm
Power consumption (TDP)	50 Watt	55 Watt