Radeon HD 6450 GDDR5 vs HD 6550D

Aggregate performance score

We've compared Radeon HD 6550D and Radeon HD 6450 GDDR5, covering specs and all relevant benchmarks.

HD 6550D
2011
65 Watt
1.04
+8.3%

HD 6550D outperforms HD 6450 GDDR5 by a small 8% based on our aggregate benchmark results.

Primary details

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

Place in the ranking10941114
Place by popularitynot in top-100not in top-100
Power efficiency1.112.46
ArchitectureTeraScale 2 (2009−2015)Terascale 2 (2009−2015)
GPU code nameSumoCaicos
Market segmentDesktopDesktop
Release date20 June 2011 (13 years ago)18 April 2011 (13 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 cores400160
Core clock speed600 MHz750 MHz
Number of transistors1,178 millionno data
Manufacturing process technology32 nm40 nm
Power consumption (TDP)65 Watt27 Watt
Texture fill rate12.00no data
Floating-point processing power0.48 TFLOPSno data
ROPs8no data
TMUs20no data

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).

InterfaceIGPno data
WidthIGPno 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 typeSystem SharedGDDR5
Maximum RAM amountSystem Shared1 GB
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Shared900 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 ConnectorsNo outputsno data

API compatibility

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

DirectX11.2 (11_0)11
Shader Model5.0no data
OpenGL4.4no data
OpenCL1.2no data
VulkanN/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.

HD 6550D 1.04
+8.3%
HD 6450 GDDR5 0.96

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 6550D 952
+52.7%
HD 6450 GDDR5 623

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 6550D 3930
+39.2%
HD 6450 GDDR5 2822

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:

900p7−8
+0%
7
+0%
Full HD20
+33.3%
15
−33.3%
1200p5−6
+0%
5
+0%

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 4−5
+0%
4−5
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Far Cry New Dawn 2−3
+0%
2−3
+0%
Forza Horizon 4 0−1 0−1
Hitman 3 5−6
+0%
5−6
+0%
Horizon Zero Dawn 12−14
+0%
12−14
+0%
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
+0%
30−35
+0%

Full HD
High Preset

Assassin's Creed Odyssey 5−6
+0%
5−6
+0%
Call of Duty: Modern Warfare 4−5
+0%
4−5
+0%
Cyberpunk 2077 3−4
+0%
3−4
+0%
Far Cry 5 1−2
+0%
1−2
+0%
Far Cry New Dawn 2−3
+0%
2−3
+0%
Forza Horizon 4 0−1 0−1
Hitman 3 5−6
+0%
5−6
+0%
Horizon Zero Dawn 12−14
+0%
12−14
+0%
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 10−12
+10%
10−11
−10%
Watch Dogs: Legion 30−35
+0%
30−35
+0%

Full HD
Ultra Preset

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

Full HD
Epic Preset

Red Dead Redemption 2 1−2
+0%
1−2
+0%

1440p
High Preset

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

1440p
Ultra Preset

Assassin's Creed Odyssey 1−2
+0%
1−2
+0%
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 4−5
+0%
4−5
+0%

1440p
Epic Preset

Red Dead Redemption 2 4−5
+33.3%
3−4
−33.3%

4K
High Preset

Far Cry New Dawn 0−1 0−1

4K
Ultra Preset

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

4K
Epic Preset

Red Dead Redemption 2 2−3
+0%
2−3
+0%

This is how HD 6550D and HD 6450 GDDR5 compete in popular games:

  • A tie in 900p
  • HD 6550D is 33% faster in 1080p
  • A tie in 1200p

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

  • in Red Dead Redemption 2, with 1440p resolution and the Epic Preset, the HD 6550D is 33% faster.

All in all, in popular games:

  • HD 6550D is ahead in 3 tests (7%)
  • there's a draw in 40 tests (93%)

Pros & cons summary


Performance score 1.04 0.96
Recency 20 June 2011 18 April 2011
Chip lithography 32 nm 40 nm
Power consumption (TDP) 65 Watt 27 Watt

HD 6550D has a 8.3% higher aggregate performance score, an age advantage of 2 months, and a 25% more advanced lithography process.

HD 6450 GDDR5, on the other hand, has 140.7% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Radeon HD 6550D and Radeon HD 6450 GDDR5.


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

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AMD Radeon HD 6550D
Radeon HD 6550D
AMD Radeon HD 6450 GDDR5
Radeon HD 6450 GDDR5

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 91 vote

Rate Radeon HD 6550D on a scale of 1 to 5:

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3.4 24 votes

Rate Radeon HD 6450 GDDR5 on a scale of 1 to 5:

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Questions & comments

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