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Gaming Performance Comparison

Recommended System Requirements
Game HD i5 6400T Radeon R7 7700K
Cyberpunk 2077 779% 571%
Watch Dogs Legion 756% 553%
Assassins Creed: Valhalla 711% 519%
Call of Duty: Black Ops Cold War 685% 499%
Genshin Impact 787% 577%
FIFA 21 347% 241%
Microsoft Flight Simulator 685% 499%
eFootball PES 2021 347% 241%
Ghostrunner 685% 499%
Horizon: Zero Dawn 740% 541%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R7 7700K are noticeably better than the Intel HD i5 6400T.

The Radeon R7 7700K has a 370 MHz higher core clock speed and 8 more Texture Mapping Units than the HD i5 6400T. This results in the Radeon R7 7700K providing 11.7 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 Radeon R7 7700K has a 370 MHz higher core clock speed than the HD i5 6400T and the same number of Render Output Units. This results in the Radeon R7 7700K providing 3 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 a year more recently than the Radeon R7 7700K, and so the HD i5 6400T is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the Radeon R7 7700K.

The HD i5 6400T and the Radeon R7 7700K have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The memory bandwidth of the HD i5 6400T and the Radeon R7 7700K are the same, which means the HD i5 6400T and the Radeon R7 7700K have equal limitations when it comes to graphical data transfer.

The HD i5 6400T has 24 Shader Processing Units and the Radeon R7 7700K has 384. However, the actual shader performance of the HD i5 6400T is 182 and the actual shader performance of the Radeon R7 7700K is 209. The Radeon R7 7700K having 27 better shader performance and an altogether better performance when taking into account other relevant data means that the Radeon R7 7700K delivers a marginally smoother and more efficient experience when processing graphical data than the HD i5 6400T.

The HD i5 6400T transistor size technology is 14 nm (nanometers) smaller than the Radeon R7 7700K. This means that the HD i5 6400T is expected to run slightly cooler and achieve higher clock frequencies than the Radeon R7 7700K.

The HD i5 6400T requires 35 Watts to run and the Radeon R7 7700K requires 95 Watts. We would recommend a PSU with at least 300 Watts for the HD i5 6400T. The Radeon R7 7700K requires 60 Watts more than the HD i5 6400T to run. The difference is significant enough that the Radeon R7 7700K may have an adverse affect on your yearly electricity bills in comparison to the HD i5 6400T.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed350 MHzvs720 MHz
Boost Clock950 MHzvs836 MHz
ArchitectureSkylake GT2-R0Kaveri Spectre
OC Potential None vs None
Driver Support Great vs -
Release Date01 Sep 2015vs17 Feb 2014
GPU LinkGD LinkGD Link

Resolution Performance

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GPU Memory

Memory Speed1067 MHzvs1067 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR4vsDDR3
Memory Bandwidth34.1GB/secvs34.1GB/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 Units24vs384
Actual Shader Performance9%vs10%
Texture Mapping Units16vs24
Texture Rate5.6 GTexel/svs17.3 GTexel/s
Render Output Units8vs8
Pixel Rate2.8 GPixel/svs5.8 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections0vs-

GPU Power Requirements

Max Power35 Wattsvs95 Watts
Recommended PSU300 Watts & 20 Amps-

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.3
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-6400T 2.2GHzvsAMD APU A10-7700k Quad-Core
Recommended RAM4 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Intel HD i5 6400T is the specific version of Intel HD Graphics 530 Desktop that is integrated in the Core i5-6400T Processor.

The Skylake Core includes support for DirectX 12.1, OpenCL 2.0 and OpenGL 4.4. Additionally, it also supports DDR4 Memory.

It equips a GPU Codenamed GT2-R0 which offers 24 Shader Processing Units, 16 TMUs and 8 ROPs. The Central Unit Initially Runs at 350MHz and goes up to 950MHz, in Turbo Mode.

The GPU Shares the System's RAM which varies from laptop to laptop. Typically, the GPU reserves 1.7GB. Depending on whether or not the system's RAM is Dual-Channeled, it can access either a 64-bit or 128-bit memory interface. The operating memory clock also depends on the at which speed the System's RAM is running and is limited by the highest operating speed that the Processor supports. In this case, it is 1067MHz.
It is then obvious the Memory Bandwidth depends on a lot of factors and thus this Graphics Card performance may vary heavily from system to system.

Gaming benchmarks put its performance almost on level with a dedicated GeForce 920M.

System Suggestions
Intel HD i5 6400T is best suited for resolutions up to and including 1366x768. We recommend a Decent Processor and 4GB of RAM for Optimal Performance.
Radeon R7 7700K is an integrated Graphics Card in the A10-7700K.
It is based on the Graphics Core Next Architecture and offers 384 Shader Processing Units, 24 TMUs and 8 ROPs. The memory bus-width will depend on whether or not the system's RAM is dual-channeled and the operating memory clock, on its frequency. Thus, it can be either 64-bit or 128-bit and up to 1067MHz.
Therefore, the Graphics Card's performance depends a lot on the system configuration. Best case scenario, expect similiar to Intel's powerful Iris Pro Graphics 5200 and not far from Radeon R7 7850K.
The card is thus suited for 720p gaming and most modern demanding games can be played at least on medium settings.
Recommended CPU
Possible GPU Upgrades
GPU Variants