Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 5450 Gigabyte OC 512MB Edition Radeon HD 7750 VTX3D 1GB DDR3 Edition
Red Dead Redemption 2 2436% 386%
Cyberpunk 2077 3383% 568%
Doom Eternal 2080% 318%
Dragon Ball Z Kakarot 1464% 200%
Call of Duty: Modern Warfare 2436% 386%
Microsoft Flight Simulator 3383% 568%
FIFA 20 1251% 159%
Grand Theft Auto VI 3774% 643%
Star Wars: Jedi - Fallen Order 3383% 568%
Need For Speed Heat 2436% 386%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7750 VTX3D 1GB DDR3 Edition are massively better than the AMD Radeon HD 5450 Gigabyte OC 512MB Edition.

The HD 7750 has a 100 MHz higher core clock speed and 24 more Texture Mapping Units than the HD 5450. This results in the HD 7750 providing 20 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 7750 has a 100 MHz higher core clock speed and 12 more Render Output Units than the HD 5450. This results in the HD 7750 providing 10 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 7750 was released less than a year after the HD 5450, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The HD 7750 has 512 MB more video memory than the HD 5450, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the HD 7750 also has superior memory performance overall.

The HD 7750 has 12.8 GB/sec greater memory bandwidth than the HD 5450, which means that the memory performance of the HD 7750 is slightly better than the HD 5450.

The Radeon HD 5450 Gigabyte OC 512MB Edition has 80 Shader Processing Units and the Radeon HD 7750 VTX3D 1GB DDR3 Edition has 512. However, the actual shader performance of the HD 5450 is 56 and the actual shader performance of the HD 7750 is 348. The HD 7750 having 292 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 7750 delivers a significantly smoother and more efficient experience when processing graphical data than the HD 5450.

The HD 7750 transistor size technology is 12 nm (nanometers) smaller than the HD 5450. This means that the HD 7750 is expected to run slightly cooler and achieve higher clock frequencies than the HD 5450.

We would recommend a PSU with at least 400 Watts for the HD 5450 and a PSU with at least 400 Watts for the HD 7750. The two GPUs have been recommended a PSU with the same amount of wattage. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed700 MHzvs800 MHz
Boost Clock-vs-
ArchitectureTerascale 2 Cedar PROGCN 1.0 Cape Verde PRO
OC Potential Fair vs Good
Driver Support - vs Good
Release Date01 Aug 2012vs01 Oct 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - vs green tick
8.1
1600x900 - vs green tick
5.6
1920x1080 - vs green tick
4.6
2560x1440 - vs green tick
3
3840x2160 - vs green tick
2.1

GPU Memory

Memory512 MBvs1024 MB
Memory Speed800 MHzvs800 MHz
Memory Bus64 Bitvs128 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth12.8GB/secvs25.6GB/sec
L2 Cache 128 KB vs green tick 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units80vs512
Actual Shader Performance3%vs17%
Technology40nmvs28nm
Texture Mapping Units8vs32
Texture Rate5.6 GTexel/svs25.6 GTexel/s
Render Output Units4vs16
Pixel Rate2.8 GPixel/svs12.8 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections1vs1
DVI Connections1vs1
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power--
Recommended PSU400 Wattsvs400 Watts

GPU Features

DirectX11vs12.0
Shader Model5.0vs5.0
Open GL3.2vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Celeron E1600 Dual-Core 2.4GHz-
Recommended RAM3 GB-
Maximum Recommended Gaming Resolution1024x768-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 5450 Gigabyte OC 512MB Edition is a special edition of the entry-level Radeon HD 5450.
This edition comes overclocked out of the box in the core-clock which went from 650MHz to 700MHz.
Expect an up to 5% performance boost in most games, when compared to the reference card.
Radeon HD 7750 VTX3D 1GB DDR3 Edition is a special edition of the fast-middle-class Radeon HD 7750 1GB DDR3.
This version has no new features (when compared to the DDR3 version) and so it performs exactly like it.
Recommended CPU
-
Possible GPU Upgrades
-
GPU Variants
-
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