Radeon HD 6450 GDDR5 vs HD 6620G

Place in performance ranking	1097	1086
Place by popularity	not in top-100	not in top-100
Architecture	Terascale 2 (2009−2015)	Terascale 2 (2009−2015)
GPU code name	Llano	Caicos
Market segment	Laptop	Desktop
Release date	15 June 2011 (13 years ago)	18 April 2011 (13 years ago)

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	400	160
Core clock speed	400 MHz	750 MHz
Number of transistors	1000 Million	no data
Manufacturing process technology	32 nm	40 nm
Power consumption (TDP)	35 Watt	27 Watt
Texture fill rate	8.880	no data

Form factor & compatibility

Information on Radeon HD 6620G and Radeon HD 6450 GDDR5 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	medium sized	no data
Interface	IGP	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	no data	GDDR5
Maximum RAM amount	System Shared	1 GB
Memory bus width	no data	64 Bit
Memory clock speed	no data	900 MHz
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

no data

API compatibility

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

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

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.

HD 6620G 0.88

HD 6450 GDDR5 0.97
+10.2%

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.

HD 6620G 2443

HD 6450 GDDR5 2822
+15.5%

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.

HD 6620G 650
+4.3%

HD 6450 GDDR5 623

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:

900p	6−7 −16.7%	7 +16.7%
Full HD	13 −23.1%	16 +23.1%
1200p	4−5 −25%	5 +25%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

3−4

+0%

3−4

+0%

Full HD
Medium Preset

Assassin's Creed Odyssey	5−6 +0%	5−6 +0%
Call of Duty: Modern Warfare	3−4 −33.3%	4−5 +33.3%
Cyberpunk 2077	3−4 +0%	3−4 +0%
Far Cry 5	0−1	1−2
Far Cry New Dawn	2−3 +0%	2−3 +0%
Hitman 3	5−6 +0%	5−6 +0%
Horizon Zero Dawn	12−14 −8.3%	12−14 +8.3%
Red Dead Redemption 2	1−2 +0%	1−2 +0%
Shadow of the Tomb Raider	7−8 +0%	7−8 +0%
Watch Dogs: Legion	30−35 −3.2%	30−35 +3.2%

Full HD
High Preset

Assassin's Creed Odyssey	5−6 +0%	5−6 +0%
Call of Duty: Modern Warfare	3−4 −33.3%	4−5 +33.3%
Cyberpunk 2077	3−4 +0%	3−4 +0%
Far Cry 5	0−1	1−2
Far Cry New Dawn	2−3 +0%	2−3 +0%
Hitman 3	5−6 +0%	5−6 +0%
Horizon Zero Dawn	12−14 −8.3%	12−14 +8.3%
Red Dead Redemption 2	1−2 +0%	1−2 +0%
Shadow of the Tomb Raider	7−8 +0%	7−8 +0%
The Witcher 3: Wild Hunt	10−11 +0%	10−11 +0%
Watch Dogs: Legion	30−35 −3.2%	30−35 +3.2%

Full HD
Ultra Preset

Assassin's Creed Odyssey	5−6 +0%	5−6 +0%
Call of Duty: Modern Warfare	3−4 −33.3%	4−5 +33.3%
Cyberpunk 2077	3−4 +0%	3−4 +0%
Far Cry 5	0−1	1−2
Hitman 3	5−6 +0%	5−6 +0%
Horizon Zero Dawn	12−14 −8.3%	12−14 +8.3%
Shadow of the Tomb Raider	7−8 +0%	7−8 +0%
The Witcher 3: Wild Hunt	10−11 +0%	10−11 +0%
Watch Dogs: Legion	30−35 −3.2%	30−35 +3.2%

Full HD
Epic Preset

Red Dead Redemption 2

1−2

+0%

1−2

+0%

1440p
High Preset

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

1440p
Ultra Preset

Assassin's Creed Odyssey	0−1	1−2
Cyberpunk 2077	1−2 +0%	1−2 +0%
Far Cry 5	1−2 +0%	1−2 +0%
Hitman 3	7−8 +0%	7−8 +0%
Horizon Zero Dawn	4−5 +0%	4−5 +0%
The Witcher 3: Wild Hunt	0−1	0−1
Watch Dogs: Legion	3−4 −33.3%	4−5 +33.3%