UHD Graphics 620 vs ATI Mobility Radeon HD 3850

Place in the ranking	1183	810
Place by popularity	not in top-100	26
Architecture	RV6xx (2007−2010)	Gen. 9.5 (2017)
GPU code name	M88	Kaby-Lake-Refresh GT2
Market segment	Laptop	Laptop
Release date	1 December 2007 (16 years ago)	1 September 2017 (7 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	24
Core clock speed	580 MHz	300 MHz
Boost clock speed	no data	1150 MHz
Number of transistors	666 million	189 million
Manufacturing process technology	55 nm	14 nm
Power consumption (TDP)	55 Watt	15 Watt
Texture fill rate	9.280	27.60
Floating-point processing power	0.3712 gflops	0.4416 gflops
ROPs	16	3
TMUs	16	24

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	PCIe 3.0 x1

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	LPDDR3/DDR4
Maximum RAM amount	512 MB	32 GB
Memory bus width	256 Bit	no data
Memory clock speed	750 MHz	no data
Memory bandwidth	48 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

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Quick Sync

no data

API compatibility

List of supported graphics 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	1.1.103

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.

ATI Mobility HD 3850 0.68

UHD Graphics 620 2.67
+293%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

ATI Mobility HD 3850 1880

UHD Graphics 620 7330
+290%

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	3−4 −333%	13 +333%
1440p	4−5 −325%	17 +325%
4K	1−2 −600%	7 +600%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

3−4

−100%

6
+100%

Full HD
Medium Preset

Assassin's Creed Odyssey	4−5 −100%	8 +100%
Call of Duty: Modern Warfare	3−4 −100%	6 +100%
Cyberpunk 2077	3−4 −66.7%	5−6 +66.7%
Far Cry New Dawn	1−2 −900%	10 +900%
Hitman 3	5−6 −40%	7−8 +40%
Horizon Zero Dawn	10−12 −264%	40 +264%
Red Dead Redemption 2	0−1	9
Shadow of the Tomb Raider	6−7 −150%	15 +150%
Watch Dogs: Legion	30−33 +0%	30 +0%

Full HD
High Preset

Assassin's Creed Odyssey	4−5 −125%	9−10 +125%
Call of Duty: Modern Warfare	3−4 −133%	7−8 +133%
Cyberpunk 2077	3−4 −66.7%	5−6 +66.7%
Far Cry New Dawn	1−2 −600%	7−8 +600%
Hitman 3	5−6 −40%	7−8 +40%
Horizon Zero Dawn	10−12 −209%	34 +209%
Red Dead Redemption 2	0−1	6−7
Shadow of the Tomb Raider	6−7 −83.3%	11 +83.3%
The Witcher 3: Wild Hunt	10−11 −40%	14 +40%
Watch Dogs: Legion	30−33 −26.7%	35−40 +26.7%

Full HD
Ultra Preset

Assassin's Creed Odyssey	4−5 −125%	9−10 +125%
Call of Duty: Modern Warfare	3−4 −133%	7−8 +133%
Cyberpunk 2077	3−4 −66.7%	5−6 +66.7%
Hitman 3	5−6 −40%	7−8 +40%
Horizon Zero Dawn	10−12 +120%	5 −120%
Shadow of the Tomb Raider	6−7 −133%	14 +133%
The Witcher 3: Wild Hunt	10−11 +233%	3 −233%
Watch Dogs: Legion	30−33 −26.7%	35−40 +26.7%

Full HD
Epic Preset

Red Dead Redemption 2

0−1

6−7

1440p
High Preset

Far Cry New Dawn

1−2

−300%

4−5
+300%

1440p
Ultra Preset

Assassin's Creed Odyssey	0−1	2−3
Cyberpunk 2077	1−2 +0%	1−2 +0%
Far Cry 5	1−2 −200%	3−4 +200%
Hitman 3	6−7 −33.3%	8−9 +33.3%
Horizon Zero Dawn	3−4 −133%	7−8 +133%
Watch Dogs: Legion	2−3 −700%	16−18 +700%

1440p
Epic Preset

Red Dead Redemption 2

3−4

−100%

6−7
+100%

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −100%	2−3 +100%
Assassin's Creed Valhalla	0−1	1−2

4K
Epic Preset

Red Dead Redemption 2

2−3

−100%

4−5
+100%

Full HD
Medium Preset

Assassin's Creed Valhalla	0−1	0−1
Battlefield 5	8 +0%	8 +0%
Far Cry 5	5−6 +0%	5−6 +0%
Forza Horizon 4	38 +0%	38 +0%
Metro Exodus	2−3 +0%	2−3 +0%

Full HD
High Preset

Assassin's Creed Valhalla	0−1	0−1
Battlefield 5	4−5 +0%	4−5 +0%
Far Cry 5	5−6 +0%	5−6 +0%
Forza Horizon 4	36 +0%	36 +0%
Metro Exodus	2−3 +0%	2−3 +0%

Full HD
Ultra Preset

Assassin's Creed Valhalla	0−1	0−1
Far Cry 5	5−6 +0%	5−6 +0%
Forza Horizon 4	12−14 +0%	12−14 +0%

1440p
High Preset

Battlefield 5

4−5

+0%

4−5

+0%

1440p
Ultra Preset

Call of Duty: Modern Warfare	2−3 +0%	2−3 +0%
The Witcher 3: Wild Hunt	2−3 +0%	2−3 +0%

4K
High Preset

Battlefield 5	1−2 +0%	1−2 +0%
Far Cry New Dawn	1−2 +0%	1−2 +0%

4K
Ultra Preset

Call of Duty: Modern Warfare	1−2 +0%	1−2 +0%
Far Cry 5	1−2 +0%	1−2 +0%
Watch Dogs: Legion	0−1	0−1

This is how ATI Mobility HD 3850 and UHD Graphics 620 compete in popular games:

UHD Graphics 620 is 333% faster in 1080p
UHD Graphics 620 is 325% faster in 1440p
UHD Graphics 620 is 600% faster in 4K

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

in The Witcher 3: Wild Hunt, with 1080p resolution and the Ultra Preset, the ATI Mobility HD 3850 is 233% faster.
in Far Cry New Dawn, with 1080p resolution and the Medium Preset, the UHD Graphics 620 is 900% faster.

All in all, in popular games:

ATI Mobility HD 3850 is ahead in 2 tests (4%)
UHD Graphics 620 is ahead in 31 test (60%)
there's a draw in 19 tests (37%)

Pros & cons summary

Performance score	0.68	2.67
Recency	1 December 2007	1 September 2017
Maximum RAM amount	512 MB	32 GB
Chip lithography	55 nm	14 nm
Power consumption (TDP)	55 Watt	15 Watt

UHD Graphics 620 has a 292.6% higher aggregate performance score, an age advantage of 9 years, a 6300% higher maximum VRAM amount, a 292.9% more advanced lithography process, and 266.7% lower power consumption.

The UHD Graphics 620 is our recommended choice as it beats the Mobility Radeon HD 3850 in performance tests.

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