Radeon 550X vs GeForce 820A

Place in the ranking	992	709
Place by popularity	not in top-100	not in top-100
Power efficiency	6.67	5.13
Architecture	Fermi 2.0 (2010−2014)	GCN 4.0 (2016−2020)
GPU code name	GF117	Lexa
Market segment	Laptop	Desktop
Release date	17 March 2014 (10 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	96	512
Core clock speed	775 MHz	1082 MHz
Boost clock speed	no data	1218 MHz
Number of transistors	585 million	2,200 million
Manufacturing process technology	28 nm	14 nm
Power consumption (TDP)	15 Watt	50 Watt
Texture fill rate	12.40	38.98
Floating-point processing power	0.2976 TFLOPS	1.247 TFLOPS
ROPs	8	16
TMUs	16	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	PCIe 2.0 x16	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	DDR3	GDDR5
Maximum RAM amount	1 GB	2 GB
Memory bus width	64 Bit	128 Bit
Memory clock speed	900 MHz	1750 MHz
Memory bandwidth	14.4 GB/s	112.0 GB/s

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	1x DVI, 1x HDMI, 1x DisplayPort
HDMI	-	+

API compatibility

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

DirectX	12 (11_0)	12 (12_0)
Shader Model	5.1	6.4
OpenGL	4.6	4.6
OpenCL	1.1	2.0
Vulkan	N/A	1.2.131
CUDA	2.1	-

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.

GeForce 820A 1.44

Radeon 550X 3.69
+156%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

GeForce 820A 555

Radeon 550X 1423
+156%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary

Performance score	1.44	3.69
Recency	17 March 2014	27 March 2019
Maximum RAM amount	1 GB	2 GB
Chip lithography	28 nm	14 nm
Power consumption (TDP)	15 Watt	50 Watt

GeForce 820A has 233.3% lower power consumption.

Radeon 550X, on the other hand, has a 156.3% higher aggregate performance score, an age advantage of 5 years, a 100% higher maximum VRAM amount, and a 100% more advanced lithography process.

The Radeon 550X is our recommended choice as it beats the GeForce 820A in performance tests.

Be aware that GeForce 820A is a notebook card while Radeon 550X is a desktop one.

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