Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game HD i5 6400T Radeon HD 7870 DirectCU II 2GB Edition
Cyberpunk 2077 787% 115%
Hitman 3 1054% 180%
Assassins Creed: Valhalla 711% 97%
Resident Evil 8 787% 115%
FIFA 21 347% 9%
Grand Theft Auto VI 1148% 203%
Call of Duty: Black Ops Cold War 685% 90%
The Medium 1007% 168%
Genshin Impact 787% 115%
Far Cry 6 1183% 211%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7870 DirectCU II 2GB Edition are massively better than the Intel HD i5 6400T.

The HD 7870 has a 660 MHz higher core clock speed and 64 more Texture Mapping Units than the HD i5 6400T. This results in the HD 7870 providing 75.2 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 7870 has a 660 MHz higher core clock speed and 24 more Render Output Units than the HD i5 6400T. This results in the HD 7870 providing 29.5 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 7870, 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 7870 when running the latest games.

The HD 7870 has 2048 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 7870 DirectCU II 2GB Edition has 1280. However, the actual shader performance of the HD i5 6400T is 182 and the actual shader performance of the HD 7870 is 1099. The HD 7870 having 917 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 7870 delivers a massively 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 HD 7870. This means that the HD i5 6400T is expected to run slightly cooler and achieve higher clock frequencies than the HD 7870.

The HD i5 6400T requires 35 Watts to run but there is no entry for the Radeon HD 7870 DirectCU II 2GB Edition. We would recommend a PSU with at least 300 Watts for the HD i5 6400T.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed350 MHzvs1010 MHz
Boost Clock950 MHzvs-
ArchitectureSkylake GT2-R0GCN 1.0 Pitcairn XT
OC Potential None vs Fair
Driver Support Great vs Good
Release Date01 Sep 2015vs01 Jun 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
6.1
green tick vs -
1600x900
4.6
vs green tick
9.3
1920x1080
3.1
vs green tick
7.2
2560x1440
2.2
vs green tick
5.4
3840x2160
1.5
vs green tick
3.7

GPU Memory

MemoryN/Avs2048 MB
Memory Speed1067 MHzvs1210 MHz
Memory Bus128 Bitvs256 Bit
Memory TypeDDR4vsGDDR5
Memory Bandwidth34.1GB/secvs154.9GB/sec
L2 Cache 1024 KB green tick vs 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units24vs1280
Actual Shader Performance9%vs53%
Technology14nmvs28nm
Texture Mapping Units16vs80
Texture Rate5.6 GTexel/svs80.8 GTexel/s
Render Output Units8vs32
Pixel Rate2.8 GPixel/svs32.3 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs1
HDMI Connections0vs1
DisplayPort Connections0vs-
Comparison

GPU Power Requirements

Max Power35 Watts-
Recommended PSU300 Watts & 20 Amps-

GPU Features

DirectX12.1vs12.0
Shader Model5.0vs5.0
Open GL4.4vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatednovsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-6400T 2.2GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1920x1080

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.

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

GPU
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.

Memory
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.

Performance
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 7870 DirectCU II 2GB Edition is a special edition of the powerful Radeon HD 7870. See the standard version for more information about it.
The new features include the DirectCU II cooling solution which is 20% more effective than the reference cooler, according to Asus and a small increase in the core-clock to 1010MHz as well as in the memory clock to 1210MHz.
Benchmarks indicate almost no performance boost when compared to the standard Radeon HD 7870 and so its performance is on level with the it as the boost is beneath 1%.
All games, including demanding one's, will run on the highest settings.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-