Radeon HD 6620G vs RX Vega 6 (Ryzen 4000/5000)

Place in the ranking	580	1120
Place by popularity	not in top-100	not in top-100
Power efficiency	27.89	1.74
Architecture	Vega (2017−2020)	TeraScale 2 (2009−2015)
GPU code name	Vega Renoir	Sumo
Market segment	Laptop	Desktop
Release date	7 January 2020 (4 years ago)	7 December 2011 (12 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	384	400
Core clock speed	400 MHz	444 MHz
Boost clock speed	1500 MHz	no data
Number of transistors	no data	1,178 million
Manufacturing process technology	7 nm	32 nm
Power consumption (TDP)	15 Watt	35 Watt
Texture fill rate	no data	8.880
Floating-point processing power	no data	0.3552 TFLOPS
ROPs	no data	8
TMUs	no data	20

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).

Interface	no data	IGP
Width	no data	IGP

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	no data	System Shared
Maximum RAM amount	no data	System Shared
Memory bus width	no data	System Shared
Memory clock speed	no data	System Shared
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 data

No outputs

API compatibility

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

DirectX	12_1	11.2 (11_0)
Shader Model	no data	5.0
OpenGL	no data	4.4
OpenCL	no data	1.2
Vulkan	-	N/A

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

RX Vega 6 (Ryzen 4000/5000) 6.04
+586%

HD 6620G 0.88

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

RX Vega 6 (Ryzen 4000/5000) 4210
+548%

HD 6620G 650

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	20 +53.8%	13 −53.8%
1440p	28 +600%	4−5 −600%
4K	18 +800%	2−3 −800%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

11
+267%

3−4

−267%

Full HD
Medium Preset

Assassin's Creed Odyssey	16 +220%	5−6 −220%
Assassin's Creed Valhalla	8−9 +700%	1−2 −700%
Battlefield 5	16−18 +750%	2−3 −750%
Call of Duty: Modern Warfare	14 +367%	3−4 −367%
Cyberpunk 2077	9 +200%	3−4 −200%
Far Cry 5	14−16	0−1
Far Cry New Dawn	18−20 +800%	2−3 −800%
Forza Horizon 4	40−45 +720%	5−6 −720%
Hitman 3	11 +120%	5−6 −120%
Horizon Zero Dawn	97 +708%	12−14 −708%
Metro Exodus	23 +667%	3−4 −667%
Red Dead Redemption 2	22 +2100%	1−2 −2100%
Shadow of the Tomb Raider	21−24 +214%	7−8 −214%
Watch Dogs: Legion	62 +100%	30−35 −100%

Full HD
High Preset

Assassin's Creed Odyssey	16−18 +220%	5−6 −220%
Assassin's Creed Valhalla	8−9 +700%	1−2 −700%
Battlefield 5	16−18 +750%	2−3 −750%
Call of Duty: Modern Warfare	12 +300%	3−4 −300%
Cyberpunk 2077	6 +100%	3−4 −100%
Far Cry 5	14−16	0−1
Far Cry New Dawn	18−20 +800%	2−3 −800%
Forza Horizon 4	40−45 +720%	5−6 −720%
Hitman 3	12−14 +160%	5−6 −160%
Horizon Zero Dawn	73 +508%	12−14 −508%
Metro Exodus	17 +750%	2−3 −750%
Red Dead Redemption 2	14 +1300%	1−2 −1300%
Shadow of the Tomb Raider	21 +200%	7−8 −200%
The Witcher 3: Wild Hunt	20−22 +100%	10−11 −100%
Watch Dogs: Legion	50 +61.3%	30−35 −61.3%

Full HD
Ultra Preset

Assassin's Creed Odyssey	16−18 +220%	5−6 −220%
Assassin's Creed Valhalla	8−9 +700%	1−2 −700%
Call of Duty: Modern Warfare	12−14 +333%	3−4 −333%
Cyberpunk 2077	10−11 +233%	3−4 −233%
Far Cry 5	14−16	0−1
Forza Horizon 4	40−45 +720%	5−6 −720%
Hitman 3	12−14 +160%	5−6 −160%
Horizon Zero Dawn	17 +41.7%	12−14 −41.7%
Shadow of the Tomb Raider	18 +157%	7−8 −157%
The Witcher 3: Wild Hunt	11 +10%	10−11 −10%
Watch Dogs: Legion	50−55 +64.5%	30−35 −64.5%

Full HD
Epic Preset

Red Dead Redemption 2

14
+1300%

1−2

−1300%

1440p
High Preset

Battlefield 5	12−14	0−1
Far Cry New Dawn	10−11 +900%	1−2 −900%

1440p
Ultra Preset

Assassin's Creed Odyssey	6−7	0−1
Assassin's Creed Valhalla	1−2	0−1
Call of Duty: Modern Warfare	6−7	0−1
Cyberpunk 2077	3−4 +200%	1−2 −200%
Far Cry 5	7−8 +600%	1−2 −600%
Forza Horizon 4	18−20 +850%	2−3 −850%
Hitman 3	10−11 +42.9%	7−8 −42.9%
Horizon Zero Dawn	14−16 +250%	4−5 −250%
Metro Exodus	6−7	0−1
Shadow of the Tomb Raider	2−3	0−1
The Witcher 3: Wild Hunt	5−6	0−1
Watch Dogs: Legion	40−45 +1233%	3−4 −1233%

1440p
Epic Preset

Red Dead Redemption 2

10−12
+267%

3−4

−267%

4K
High Preset

Battlefield 5	5−6	0−1
Far Cry New Dawn	4−5	0−1
Hitman 3	2−3	0−1
Horizon Zero Dawn	11 +1000%	1−2 −1000%
Metro Exodus	3−4	0−1
The Witcher 3: Wild Hunt	3−4	0−1

4K
Ultra Preset

Assassin's Creed Odyssey	4−5 +300%	1−2 −300%
Assassin's Creed Valhalla	3−4	0−1
Call of Duty: Modern Warfare	3−4	0−1
Cyberpunk 2077	0−1	0−1
Far Cry 5	3−4	0−1
Forza Horizon 4	6−7	0−1
Shadow of the Tomb Raider	1−2	0−1
Watch Dogs: Legion	2−3	0−1

4K
Epic Preset

Red Dead Redemption 2

7−8
+250%

2−3

−250%

This is how RX Vega 6 (Ryzen 4000/5000) and HD 6620G compete in popular games:

RX Vega 6 (Ryzen 4000/5000) is 54% faster in 1080p
RX Vega 6 (Ryzen 4000/5000) is 600% faster in 1440p
RX Vega 6 (Ryzen 4000/5000) is 800% faster in 4K

Here's the range of performance differences observed across popular games:

in Red Dead Redemption 2, with 1080p resolution and the Medium Preset, the RX Vega 6 (Ryzen 4000/5000) is 2100% faster.

All in all, in popular games:

Without exception, RX Vega 6 (Ryzen 4000/5000) surpassed HD 6620G in all 38 of our tests.

Pros & cons summary

Performance score	6.04	0.88
Recency	7 January 2020	7 December 2011
Chip lithography	7 nm	32 nm
Power consumption (TDP)	15 Watt	35 Watt

RX Vega 6 (Ryzen 4000/5000) has a 586.4% higher aggregate performance score, an age advantage of 8 years, a 357.1% more advanced lithography process, and 133.3% lower power consumption.

The Radeon RX Vega 6 (Ryzen 4000/5000) is our recommended choice as it beats the Radeon HD 6620G in performance tests.

Be aware that Radeon RX Vega 6 (Ryzen 4000/5000) is a notebook card while Radeon HD 6620G is a desktop one.

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