Radeon Vega 7 vs ATI Mobility HD 3870

Place in the ranking	1008	532
Place by popularity	not in top-100	18
Power efficiency	1.75	11.38
Architecture	TeraScale (2005−2013)	GCN 5.1 (2018−2022)
GPU code name	M88	Cezanne
Market segment	Laptop	Laptop
Release date	4 June 2008 (16 years ago)	13 April 2021 (3 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	320	448
Core clock speed	660 MHz	300 MHz
Boost clock speed	no data	1900 MHz
Number of transistors	666 million	9,800 million
Manufacturing process technology	55 nm	7 nm
Power consumption (TDP)	55 Watt	45 Watt
Texture fill rate	10.56	53.20
Floating-point processing power	0.4224 TFLOPS	1.702 TFLOPS
ROPs	16	8
TMUs	16	28

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop size	large	no data
Interface	PCIe 2.0 x16	IGP
Supplementary power connectors	no data	None

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	GDDR3	System Shared
Maximum RAM amount	512 MB	System Shared
Memory bus width	256 Bit	System Shared
Memory clock speed	850 MHz	System Shared
Memory bandwidth	54.4 GB/s	no data
Shared memory	-	+

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

No outputs

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	10.1 (10_1)	12 (12_1)
Shader Model	4.1	6.4
OpenGL	3.3	4.6
OpenCL	N/A	2.1
Vulkan	N/A	1.2

Gaming performance

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

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD	4−5 −450%	22 +450%
1440p	5−6 −540%	32 +540%
4K	2−3 −700%	16 +700%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

4−5
−425%

21−24

+425%

Full HD
Medium Preset

Assassin's Creed Odyssey	6−7 −400%	30−33 +400%
Call of Duty: Modern Warfare	4−5 −425%	21−24 +425%
Cyberpunk 2077	4−5 −425%	21−24 +425%
Far Cry 5	1−2 −400%	5−6 +400%
Far Cry New Dawn	3−4 −433%	16−18 +433%
Forza Horizon 4	3−4 −433%	16−18 +433%
Hitman 3	6−7 −400%	30−33 +400%
Horizon Zero Dawn	14−16 −400%	70−75 +400%
Red Dead Redemption 2	2−3 −400%	10−11 +400%
Shadow of the Tomb Raider	8−9 −400%	40−45 +400%
Watch Dogs: Legion	30−35 −415%	170−180 +415%

Full HD
High Preset

Assassin's Creed Odyssey	6−7 −400%	30−33 +400%
Call of Duty: Modern Warfare	4−5 −425%	21−24 +425%
Cyberpunk 2077	4−5 −425%	21−24 +425%
Far Cry 5	1−2 −400%	5−6 +400%
Far Cry New Dawn	3−4 −433%	16−18 +433%
Forza Horizon 4	3−4 −433%	16−18 +433%
Hitman 3	6−7 −400%	30−33 +400%
Horizon Zero Dawn	14−16 −400%	70−75 +400%
Red Dead Redemption 2	2−3 −400%	10−11 +400%
Shadow of the Tomb Raider	8−9 −400%	40−45 +400%
The Witcher 3: Wild Hunt	10−12 −400%	55−60 +400%
Watch Dogs: Legion	30−35 −415%	170−180 +415%

Full HD
Ultra Preset

Assassin's Creed Odyssey	6−7 −400%	30−33 +400%
Call of Duty: Modern Warfare	4−5 −425%	21−24 +425%
Cyberpunk 2077	4−5 −425%	21−24 +425%
Far Cry 5	1−2 −400%	5−6 +400%
Forza Horizon 4	3−4 −433%	16−18 +433%
Hitman 3	6−7 −400%	30−33 +400%
Horizon Zero Dawn	14−16 −400%	70−75 +400%
Shadow of the Tomb Raider	8−9 −400%	40−45 +400%
The Witcher 3: Wild Hunt	10−12 −400%	55−60 +400%
Watch Dogs: Legion	30−35 −415%	170−180 +415%

Full HD
Epic Preset

Red Dead Redemption 2

2−3
−400%

10−11

+400%

1440p
High Preset

Battlefield 5	1−2 −400%	5−6 +400%
Far Cry New Dawn	2−3 −400%	10−11 +400%

1440p
Ultra Preset

Assassin's Creed Odyssey	1−2 −400%	5−6 +400%
Call of Duty: Modern Warfare	0−1	0−1
Cyberpunk 2077	1−2 −400%	5−6 +400%
Far Cry 5	1−2 −400%	5−6 +400%
Hitman 3	7−8 −400%	35−40 +400%
Horizon Zero Dawn	5−6 −380%	24−27 +380%
The Witcher 3: Wild Hunt	1−2 −400%	5−6 +400%
Watch Dogs: Legion	6−7 −400%	30−33 +400%

1440p
Epic Preset

Red Dead Redemption 2

4−5
−425%

21−24

+425%

4K
High Preset

Far Cry New Dawn

0−1

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −400%	5−6 +400%
Assassin's Creed Valhalla	1−2 −400%	5−6 +400%
Call of Duty: Modern Warfare	0−1	0−1
Far Cry 5	0−1	0−1

4K
Epic Preset

Red Dead Redemption 2

3−4
−433%

16−18

+433%

This is how ATI Mobility HD 3870 and Vega 7 compete in popular games:

Vega 7 is 450% faster in 1080p
Vega 7 is 540% faster in 1440p
Vega 7 is 700% faster in 4K

Pros & cons summary

Performance score	1.40	7.47
Recency	4 June 2008	13 April 2021
Chip lithography	55 nm	7 nm
Power consumption (TDP)	55 Watt	45 Watt

Vega 7 has a 433.6% higher aggregate performance score, an age advantage of 12 years, a 685.7% more advanced lithography process, and 22.2% lower power consumption.

The Radeon Vega 7 is our recommended choice as it beats the Mobility Radeon HD 3870 in performance tests.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.