Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game HD i5 6400T Radeon HD 4830 512MB
Cyberpunk 2077 779% 600%
Watch Dogs Legion 756% 581%
Assassins Creed: Valhalla 711% 546%
Call of Duty: Black Ops Cold War 685% 525%
Genshin Impact 787% 606%
FIFA 21 347% 256%
Microsoft Flight Simulator 685% 525%
eFootball PES 2021 347% 256%
Ghostrunner 685% 525%
Horizon: Zero Dawn 740% 569%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 4830 512MB are noticeably better than the Intel HD i5 6400T.

The HD 4830 has a 225 MHz higher core clock speed and 16 more Texture Mapping Units than the HD i5 6400T. This results in the HD 4830 providing 12.8 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 4830 has a 225 MHz higher core clock speed and 8 more Render Output Units than the HD i5 6400T. This results in the HD 4830 providing 6.4 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 4830, 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 4830 when running the latest games.

The HD 4830 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 4830 512MB has 640. However, the actual shader performance of the HD i5 6400T is 182 and the actual shader performance of the HD 4830 is 258. The HD 4830 having 76 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 4830 delivers a noticeably smoother and more efficient experience when processing graphical data than the HD i5 6400T.

The HD i5 6400T transistor size technology is 41 nm (nanometers) smaller than the HD 4830. This means that the HD i5 6400T is expected to run much cooler and achieve higher clock frequencies than the HD 4830.

The HD i5 6400T requires 35 Watts to run and the Radeon HD 4830 512MB requires 95 Watts. We would recommend a PSU with at least 300 Watts for the HD i5 6400T and a PSU with at least 450 Watts for the HD 4830. The HD 4830 requires 60 Watts more than the HD i5 6400T to run. The difference is significant enough that the HD 4830 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 MHzvs575 MHz
Boost Clock950 MHzvs-
ArchitectureSkylake GT2-R0R700 RV790 LE
OC Potential None vs Fair
Driver Support Great vs Poor
Release Date01 Sep 2015vs21 Oct 2008
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
vs green tick
vs green tick
vs green tick
vs green tick

GPU Memory

MemoryN/Avs512 MB
Memory Speed1067 MHzvs900 MHz
Memory Bus128 Bitvs256 Bit
Memory TypeDDR4vsGDDR3
Memory Bandwidth34.1GB/secvs57.6GB/sec
L2 Cache 1024 KB green tick vs 0 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units24vs640
Actual Shader Performance9%vs12%
Texture Mapping Units16vs32
Texture Rate5.6 GTexel/svs18.4 GTexel/s
Render Output Units8vs16
Pixel Rate2.8 GPixel/svs9.2 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections0vs2
HDMI Connections0vs0
DisplayPort Connections0vs-

GPU Power Requirements

Max Power35 Wattsvs95 Watts
Recommended PSU300 Watts & 20 Ampsvs450 Watts & 33 Amps

GPU Features

Shader Model5.0vs4.1
Open GL4.4vs3.3
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-6400T 2.2GHzvsIntel Core 2 Duo E8400 3.0GHz
Recommended RAM4 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1600x900

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 HD 4830 is a high-end GPU based on the 55nm, third unified shader architecture, R700.
It's based on the RV790 LE Core (related to Radeon HD 4860) and offers 640 Shader Processing Units, 32 TMUs and 16 ROPs a 256-bit memory interface of standard GDDR3. The central unit runs at 575MHz and the memory clock runs at up to 900MHz.
It performs much worse when compared to Radeon HD 4850/Radeon HD 4870 due to being paired with standard GDDR3, featuring less Shading Units & TMUs and being relatively underclocked. However, it's expected to consume only up to 95 Watt.
Some of today's modern games should run fluently at high settings but with modest resolutions. DirectX 11 games aren't supported.
Recommended CPU
Possible GPU Upgrades
GPU Variants