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Gaming Performance Comparison

Recommended System Requirements
Game HD i5 6400T Radeon HD 5550 512MB
Cyberpunk 2077 779% 1140%
Assassins Creed: Valhalla 711% 1045%
Call of Duty: Black Ops Cold War 803% 1174%
Genshin Impact 787% 1151%
eFootball PES 2021 347% 531%
Mafia: Definitive Edition 1172% 1694%
Watch Dogs Legion 756% 1107%
FIFA 21 347% 531%
Marvel's Avengers 740% 1085%
Microsoft Flight Simulator 685% 1007%

In terms of overall gaming performance, the graphical capabilities of the Intel HD i5 6400T are significantly better than the AMD Radeon HD 5550 512MB.

The HD 5550 has a 200 MHz higher core clock speed and the same number of Texture Mapping Units as the HD i5 6400T. This results in the HD 5550 providing 3.2 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 5550 has a 200 MHz higher core clock speed than the HD i5 6400T and the same number of Render Output Units. This results in the HD 5550 providing 1.6 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The HD i5 6400T was released over three years more recently than the HD 5550, and so the HD i5 6400T is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the HD 5550 when running the latest games.

The HD 5550 has 512 MB video memory, but the HD i5 6400T does not have an entry, so the two GPUs cannot be reliably compared in this area.

The HD i5 6400T has 24 Shader Processing Units and the Radeon HD 5550 512MB has 320. However, the actual shader performance of the HD i5 6400T is 182 and the actual shader performance of the HD 5550 is 114. The HD i5 6400T having 68 better shader performance is not particularly notable, as altogether the HD 5550 performs better when taking into account other relevant data.

The HD i5 6400T transistor size technology is 26 nm (nanometers) smaller than the HD 5550. This means that the HD i5 6400T is expected to run slightly cooler and achieve higher clock frequencies than the HD 5550.

The HD i5 6400T requires 35 Watts to run and the Radeon HD 5550 512MB requires 39 Watts. We would recommend a PSU with at least 300 Watts for the HD i5 6400T and a PSU with at least 400 Watts for the HD 5550. The HD 5550 requires 4 Watts more than the HD i5 6400T to run. The difference is not significant enough for the HD 5550 to have a noticeably larger impact on your yearly electricity bills than the HD i5 6400T.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed350 MHzvs550 MHz
Boost Clock950 MHzvs-
ArchitectureSkylake GT2-R0Evergreen Redwood LE
OC Potential None vs Fair
Driver Support Great vs -
Release Date01 Sep 2015vs09 Feb 2010
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
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GPU Memory

MemoryN/Avs512 MB
Memory Speed1067 MHzvs1000 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR4vsGDDR5
Memory Bandwidth34.1GB/secvs64GB/sec
L2 Cache 1024 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units24vs320
Actual Shader Performance9%vs5%
Texture Mapping Units16vs16
Texture Rate5.6 GTexel/svs8.8 GTexel/s
Render Output Units8vs8
Pixel Rate2.8 GPixel/svs4.4 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs1
DVI Connections0vs1
HDMI Connections0vs1
DisplayPort Connections0vs-

GPU Power Requirements

Max Power35 Wattsvs39 Watts
Recommended PSU300 Watts & 20 Ampsvs400 Watts & 24 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs3.2
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-6400T 2.2GHzvsIntel Pentium Dual Core E5500 2.8GHz
Recommended RAM4 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview





System Suggestions
Recommended CPU
Possible GPU Upgrades
GPU Variants