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Gaming Performance Comparison

Recommended System Requirements
Game HD i5 6400T GeForce GTS 450 v4 Asus DirectCU Silent 1GB Edition
Cyberpunk 2077 779% 730%
Assassins Creed: Valhalla 711% 666%
Call of Duty: Black Ops Cold War 803% 752%
Genshin Impact 787% 737%
eFootball PES 2021 347% 322%
Marvel's Avengers 740% 693%
Watch Dogs Legion 756% 707%
FIFA 21 347% 322%
Mafia: Definitive Edition 1172% 1100%
Microsoft Flight Simulator 685% 641%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTS 450 v4 Asus DirectCU Silent 1GB Edition are very slightly better than the Intel HD i5 6400T.

The GTS 450 has a 244 MHz higher core clock speed and 8 more Texture Mapping Units than the HD i5 6400T. This results in the GTS 450 providing 8.7 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 GTS 450 has a 244 MHz higher core clock speed and 8 more Render Output Units than the HD i5 6400T. This results in the GTS 450 providing 6.7 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 GTS 450, 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 GTS 450 when running the latest games.

The GTS 450 has 1024 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 GeForce GTS 450 v4 Asus DirectCU Silent 1GB Edition has 144. However, the actual shader performance of the HD i5 6400T is 182 and the actual shader performance of the GTS 450 is 171. The HD i5 6400T having 11 better shader performance is not particularly notable, as altogether the GTS 450 performs better when taking into account other relevant data.

The HD i5 6400T transistor size technology is 26 nm (nanometers) smaller than the GTS 450. This means that the HD i5 6400T is expected to run slightly cooler and achieve higher clock frequencies than the GTS 450. While they exhibit similar graphical performance, the HD i5 6400T should consume less power than the GTS 450.

The HD i5 6400T requires 35 Watts to run and the GeForce GTS 450 v4 Asus DirectCU Silent 1GB Edition requires 75 Watts. We would recommend a PSU with at least 300 Watts for the HD i5 6400T and a PSU with at least 350 Watts for the GTS 450. The GTS 450 requires 40 Watts more than the HD i5 6400T to run. The difference is significant enough that the GTS 450 may have a slight adverse affect on your yearly electricity bills in comparison to the HD i5 6400T.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed350 MHzvs594 MHz
Boost Clock950 MHzvs-
ArchitectureSkylake GT2-R0Fermi GF106-250-KA-A1
OC Potential None vs Good
Driver Support Great vs Poor
Release Date01 Sep 2015vs11 Jul 2012
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
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green tick vs -

GPU Memory

MemoryN/Avs1024 MB
Memory Speed1067 MHzvs800 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR4vsDDR3
Memory Bandwidth34.1GB/secvs25.6GB/sec
L2 Cache 1024 KB green tick vs 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units24vs144
Actual Shader Performance9%vs8%
Texture Mapping Units16vs24
Texture Rate5.6 GTexel/svs14.3 GTexel/s
Render Output Units8vs16
Pixel Rate2.8 GPixel/svs9.5 GPixel/s

GPU Outputs

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

GPU Power Requirements

Max Power35 Wattsvs75 Watts
Recommended PSU300 Watts & 20 Ampsvs350 Watts & 26 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-6400T 2.2GHzvsIntel Core i3-3220 3.3GHz
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.
GeForce GTS 450 v4 Asus DirectCU Silent 1GB Edition is a special edition of NVIDIA's fast-middle-class GeForce GTS 450 v4, created by Asus.

Overclock Out of The Box
The Central unit is actually underclocked reducing the power consumption and thus reducing the heat produced. Also, the Graphics Card relies entirely on the PCI Slot for power, meaning no extra connectors are required.

Cooling Solution
The Cooling System was replaced by Asus's DirectCU Silent Solution which has flattened copper heat-pipe in contact with the GPU directly for a 0dB cooling experience.

Because of being underclocked, GeForce GTS 450 v4 Asus DirectCU Silent 1GB Edition is actually slower than the reference GeForce GTS 450 v4.
Recommended CPU
Possible GPU Upgrades
GPU Variants