Radeon HD 6450M vs UHD Graphics 620

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Aggregate performance score

We've compared UHD Graphics 620 and Radeon HD 6450M, covering specs and all relevant benchmarks.

UHD Graphics 620
2017
32 GB LPDDR3/DDR4, 15 Watt
2.67
+311%

UHD Graphics 620 outperforms HD 6450M by a whopping 311% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in performance ranking7751149
Place by popularity23not in top-100
Cost-effectiveness evaluation0.70no data
ArchitectureGen. 9.5 (2017)Terascale 2 (2009−2015)
GPU code nameKaby-Lake-Refresh GT2Seymour-PRO
Market segmentLaptopLaptop
Release date1 September 2017 (6 years ago)4 January 2011 (13 years ago)
Current price$706 $35

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 cores24160
Core clock speed300 MHz600 MHz
Boost clock speed1150 MHzno data
Number of transistors189 million370 million
Manufacturing process technology14 nm40 nm
Power consumption (TDP)15 Wattno data
Texture fill rate27.604.800
Floating-point performanceno data192 gflops

Form factor & compatibility

Information on UHD Graphics 620 and Radeon HD 6450M compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. 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.

InterfacePCIe 3.0 x1PCIe 2.0 x16

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 typeLPDDR3/DDR4DDR3
Maximum RAM amount32 GB1 GB
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Shared800 MHz
Memory bandwidthno data12.8 GB/s
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 ConnectorsNo outputsNo 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.

DirectX12 (12_1)11.2 (11_0)
Shader Model6.45.0
OpenGL4.64.4
OpenCL2.11.2
Vulkan1.1.103N/A

Synthetic benchmark performance

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


Combined synthetic benchmark score

This is our combined benchmark performance 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.

UHD Graphics 620 2.67
+311%
HD 6450M 0.65

UHD Graphics 620 outperforms Radeon HD 6450M by 311% based on our aggregate benchmark results.


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.

Benchmark coverage: 17%

UHD Graphics 620 1744
+294%
HD 6450M 443

UHD Graphics 620 outperforms Radeon HD 6450M by 294% in 3DMark 11 Performance GPU.

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.

Benchmark coverage: 17%

UHD Graphics 620 7330
+426%
HD 6450M 1395

UHD Graphics 620 outperforms Radeon HD 6450M by 426% in 3DMark Vantage Performance.

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 HD13
+62.5%
8
−62.5%
1440p16
+433%
3−4
−433%
4K9
+350%
2−3
−350%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 12−14
+300%
3−4
−300%

Full HD
Medium Preset

Assassin's Creed Odyssey 0−1 0−1
Battlefield 5 30−33
+275%
8
−275%
Call of Duty: Modern Warfare 12−14
+300%
3−4
−300%
Cyberpunk 2077 12−14
+300%
3−4
−300%
Far Cry 5 18−20
+260%
5−6
−260%
Far Cry New Dawn 4−5
+300%
1−2
−300%
Forza Horizon 4 45−50
+275%
12
−275%
Hitman 3 8−9
+300%
2−3
−300%
Horizon Zero Dawn 45−50
+275%
12−14
−275%
Red Dead Redemption 2 35−40
+289%
9
−289%
Shadow of the Tomb Raider 27−30
+286%
7−8
−286%
Watch Dogs: Legion 35−40
+289%
9−10
−289%

Full HD
High Preset

Assassin's Creed Odyssey 0−1 0−1
Battlefield 5 16−18
+300%
4−5
−300%
Call of Duty: Modern Warfare 12−14
+300%
3−4
−300%
Cyberpunk 2077 12−14
+300%
3−4
−300%
Far Cry 5 18−20
+260%
5−6
−260%
Far Cry New Dawn 4−5
+300%
1−2
−300%
Forza Horizon 4 140−150
+289%
36
−289%
Hitman 3 8−9
+300%
2−3
−300%
Horizon Zero Dawn 45−50
+275%
12−14
−275%
Metro Exodus 12−14
+300%
3
−300%
Red Dead Redemption 2 24−27
+300%
6
−300%
Shadow of the Tomb Raider 27−30
+286%
7−8
−286%
The Witcher 3: Wild Hunt 12−14
+300%
3−4
−300%
Watch Dogs: Legion 35−40
+289%
9−10
−289%

Full HD
Ultra Preset

Assassin's Creed Odyssey 0−1 0−1
Call of Duty: Modern Warfare 12−14
+300%
3−4
−300%
Cyberpunk 2077 12−14
+300%
3−4
−300%
Far Cry 5 18−20
+260%
5−6
−260%
Forza Horizon 4 45−50
+309%
10−12
−309%
Horizon Zero Dawn 45−50
+275%
12−14
−275%
Shadow of the Tomb Raider 27−30
+286%
7−8
−286%
The Witcher 3: Wild Hunt 12−14
+300%
3−4
−300%
Watch Dogs: Legion 35−40
+289%
9−10
−289%

Full HD
Epic Preset

Red Dead Redemption 2 24−27
+300%
6−7
−300%

1440p
High Preset

Battlefield 5 16−18
+300%
4−5
−300%
Far Cry New Dawn 12−14
+300%
3−4
−300%

1440p
Ultra Preset

Assassin's Creed Odyssey 8−9
+300%
2−3
−300%
Call of Duty: Modern Warfare 16−18
+300%
4−5
−300%
Cyberpunk 2077 4−5
+300%
1−2
−300%
Far Cry 5 4−5
+300%
1−2
−300%
Forza Horizon 4 16−18
+300%
4−5
−300%
Hitman 3 24−27
+300%
6−7
−300%
Horizon Zero Dawn 12−14
+300%
3−4
−300%
The Witcher 3: Wild Hunt 8−9
+300%
2−3
−300%
Watch Dogs: Legion 4−5
+300%
1−2
−300%

1440p
Epic Preset

Red Dead Redemption 2 12−14
+300%
3−4
−300%

4K
High Preset

Battlefield 5 4−5
+300%
1−2
−300%
Far Cry New Dawn 4−5
+300%
1−2
−300%
Horizon Zero Dawn 4−5
+300%
1−2
−300%

4K
Ultra Preset

Assassin's Creed Odyssey 4−5
+300%
1−2
−300%
Assassin's Creed Valhalla 4−5
+300%
1−2
−300%
Call of Duty: Modern Warfare 4−5
+300%
1−2
−300%
Far Cry 5 4−5
+300%
1−2
−300%
Horizon Zero Dawn 4−5
+300%
1−2
−300%
Metro Exodus 16−18
+300%
4−5
−300%
Watch Dogs: Legion 0−1 0−1

4K
Epic Preset

Red Dead Redemption 2 8−9
+300%
2−3
−300%

This is how UHD Graphics 620 and HD 6450M compete in popular games:

  • UHD Graphics 620 is 63% faster in 1080p
  • UHD Graphics 620 is 433% faster in 1440p
  • UHD Graphics 620 is 350% faster in 4K

Pros & cons summary


Performance score 2.67 0.65
Recency 1 September 2017 4 January 2011
Maximum RAM amount 32 GB 1 GB
Chip lithography 14 nm 40 nm

The UHD Graphics 620 is our recommended choice as it beats the Radeon HD 6450M in performance tests.


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

Vote for your favorite

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Intel UHD Graphics 620
UHD Graphics 620
AMD Radeon HD 6450M
Radeon HD 6450M

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3 3922 votes

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3.5 6 votes

Rate Radeon HD 6450M on a scale of 1 to 5:

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Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.