Radeon 550X vs HD 6450 GDDR5

Place in the ranking	1111	704
Place by popularity	not in top-100	not in top-100
Power efficiency	2.47	5.16
Architecture	Terascale 2 (2009−2015)	GCN 4.0 (2016−2020)
GPU code name	Caicos	Lexa
Market segment	Desktop	Desktop
Release date	18 April 2011 (13 years ago)	27 March 2019 (5 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	160	512
Core clock speed	750 MHz	1082 MHz
Boost clock speed	no data	1218 MHz
Number of transistors	no data	2,200 million
Manufacturing process technology	40 nm	14 nm
Power consumption (TDP)	27 Watt	50 Watt
Texture fill rate	no data	38.98
Floating-point processing power	no data	1.247 TFLOPS
ROPs	no data	16
TMUs	no data	32

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	PCIe 3.0 x8
Length	no data	145 mm
Width	no data	2-slot
Supplementary power connectors	no data	None

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	GDDR5	GDDR5
Maximum RAM amount	1 GB	2 GB
Memory bus width	64 Bit	128 Bit
Memory clock speed	900 MHz	1750 MHz
Memory bandwidth	no data	112.0 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 Connectors	no data	1x DVI, 1x HDMI, 1x DisplayPort
HDMI	-	+

API compatibility

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

DirectX	11	12 (12_0)
Shader Model	no data	6.4
OpenGL	no data	4.6
OpenCL	no data	2.0
Vulkan	-	1.2.131

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	7 −286%	27−30 +286%
Full HD	15 −267%	55−60 +267%
1200p	5 −260%	18−20 +260%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

3−4
−233%

10−11

+233%

Full HD
Medium Preset

Assassin's Creed Odyssey	5−6 −260%	18−20 +260%
Call of Duty: Modern Warfare	4−5 −250%	14−16 +250%
Cyberpunk 2077	3−4 −233%	10−11 +233%
Far Cry 5	1−2 −200%	3−4 +200%
Far Cry New Dawn	2−3 −250%	7−8 +250%
Hitman 3	5−6 −260%	18−20 +260%
Horizon Zero Dawn	12−14 −285%	50−55 +285%
Red Dead Redemption 2	1−2 −200%	3−4 +200%
Shadow of the Tomb Raider	7−8 −286%	27−30 +286%
Watch Dogs: Legion	30−35 −275%	120−130 +275%

Full HD
High Preset

Assassin's Creed Odyssey	5−6 −260%	18−20 +260%
Call of Duty: Modern Warfare	4−5 −250%	14−16 +250%
Cyberpunk 2077	3−4 −233%	10−11 +233%
Far Cry 5	1−2 −200%	3−4 +200%
Far Cry New Dawn	2−3 −250%	7−8 +250%
Hitman 3	5−6 −260%	18−20 +260%
Horizon Zero Dawn	12−14 −285%	50−55 +285%
Red Dead Redemption 2	1−2 −200%	3−4 +200%
Shadow of the Tomb Raider	7−8 −286%	27−30 +286%
The Witcher 3: Wild Hunt	10−11 −250%	35−40 +250%
Watch Dogs: Legion	30−35 −275%	120−130 +275%

Full HD
Ultra Preset

Assassin's Creed Odyssey	5−6 −260%	18−20 +260%
Call of Duty: Modern Warfare	4−5 −250%	14−16 +250%
Cyberpunk 2077	3−4 −233%	10−11 +233%
Far Cry 5	1−2 −200%	3−4 +200%
Hitman 3	5−6 −260%	18−20 +260%
Horizon Zero Dawn	12−14 −285%	50−55 +285%
Shadow of the Tomb Raider	7−8 −286%	27−30 +286%
The Witcher 3: Wild Hunt	10−11 −250%	35−40 +250%
Watch Dogs: Legion	30−35 −275%	120−130 +275%

Full HD
Epic Preset

Red Dead Redemption 2

1−2

−200%

3−4
+200%

1440p
High Preset

Battlefield 5	1−2 −200%	3−4 +200%
Far Cry New Dawn	1−2 −200%	3−4 +200%

1440p
Ultra Preset

Assassin's Creed Odyssey	1−2 −200%	3−4 +200%
Cyberpunk 2077	1−2 −200%	3−4 +200%
Far Cry 5	1−2 −200%	3−4 +200%
Hitman 3	7−8 −286%	27−30 +286%
Horizon Zero Dawn	4−5 −250%	14−16 +250%
The Witcher 3: Wild Hunt	0−1	0−1
Watch Dogs: Legion	4−5 −250%	14−16 +250%

1440p
Epic Preset

Red Dead Redemption 2

3−4
−233%

10−11

+233%

4K
High Preset

Far Cry New Dawn

0−1

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −200%	3−4 +200%
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

−250%

7−8
+250%

This is how HD 6450 GDDR5 and Radeon 550X compete in popular games:

Radeon 550X is 286% faster in 900p
Radeon 550X is 267% faster in 1080p
Radeon 550X is 260% faster in 1200p

Pros & cons summary

Performance score	0.96	3.71
Recency	18 April 2011	27 March 2019
Maximum RAM amount	1 GB	2 GB
Chip lithography	40 nm	14 nm
Power consumption (TDP)	27 Watt	50 Watt

HD 6450 GDDR5 has 85.2% lower power consumption.

Radeon 550X, on the other hand, has a 286.5% higher aggregate performance score, an age advantage of 7 years, a 100% higher maximum VRAM amount, and a 185.7% more advanced lithography process.

The Radeon 550X is our recommended choice as it beats the Radeon HD 6450 GDDR5 in performance tests.

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