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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 4850 Gigabyte 512MB Edition Radeon R9 270X Sapphire Toxic 2GB OC Edition
Cyberpunk 2077 479% 91%
Assassins Creed: Valhalla 430% 74%
Call of Duty: Black Ops Cold War 413% 69%
Microsoft Flight Simulator 413% 69%
FIFA 21 192% 4%
Immortals: Fenyx Rising 372% 55%
Genshin Impact 479% 91%
Grand Theft Auto VI 715% 168%
World of Warcraft: Shadowlands 731% 173%
Watch Dogs Legion 459% 84%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 270X Sapphire Toxic 2GB OC Edition are massively better than the AMD Radeon HD 4850 Gigabyte 512MB Edition.

The R9 270X has a 460 MHz higher core clock speed and 40 more Texture Mapping Units than the HD 4850. This results in the R9 270X providing 62.4 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 R9 270X has a 460 MHz higher core clock speed and 16 more Render Output Units than the HD 4850. This results in the R9 270X providing 25 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 R9 270X was released over a year more recently than the HD 4850, and so the R9 270X is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 4850.

The R9 270X has 1536 MB more video memory than the HD 4850, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the R9 270X also has superior memory performance overall.

The R9 270X has 131.8 GB/sec greater memory bandwidth than the HD 4850, which means that the memory performance of the R9 270X is massively better than the HD 4850.

The Radeon HD 4850 Gigabyte 512MB Edition has 800 Shader Processing Units and the Radeon R9 270X Sapphire Toxic 2GB OC Edition has 1280. However, the actual shader performance of the HD 4850 is 358 and the actual shader performance of the R9 270X is 1251. The R9 270X having 893 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 270X delivers a massively smoother and more efficient experience when processing graphical data than the HD 4850.

The R9 270X transistor size technology is 27 nm (nanometers) smaller than the HD 4850. This means that the R9 270X is expected to run slightly cooler and achieve higher clock frequencies than the HD 4850.

The Radeon HD 4850 Gigabyte 512MB Edition requires 110 Watts to run and the Radeon R9 270X Sapphire Toxic 2GB OC Edition requires 180 Watts. We would recommend a PSU with at least 450 Watts for the HD 4850 and a PSU with at least 500 Watts for the R9 270X. The R9 270X requires 70 Watts more than the HD 4850 to run. The difference is significant enough that the R9 270X may have an adverse affect on your yearly electricity bills in comparison to the HD 4850.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed640 MHzvs1100 MHz
Boost Clock-vs1150 MHz
ArchitectureR700 RV770 PROGCN 1.1 Curacao XT
OC Potential Fair vs Poor
Driver Support Poor vs Great
Release Date01 Oct 2011vs08 Oct 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
5.7
vs green tick
9.6
1920x1080
4.3
vs green tick
7.7
2560x1440
2.5
vs green tick
5.7
3840x2160
1.7
vs green tick
4.1

GPU Memory

Memory512 MBvs2048 MB
Memory Speed940 MHzvs1500 MHz
Memory Bus256 Bitvs256 Bit
Memory TypeGDDR3vsGDDR5
Memory Bandwidth60.2GB/secvs192GB/sec
L2 Cache 0 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 Units800vs1280
Actual Shader Performance17%vs60%
Technology55nmvs28nm
Texture Mapping Units40vs80
Texture Rate25.6 GTexel/svs88 GTexel/s
Render Output Units16vs32
Pixel Rate10.2 GPixel/svs35.2 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections1vs0
DVI Connections1vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power110 Wattsvs180 Watts
Recommended PSU450 Wattsvs500 Watts

GPU Features

DirectX10.1vs12.0
Shader Model4.1vs5.0
Open GL3.3vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core 2 Duo E8600 3.33GHzvsIntel Core i5-4430 3.0GHz
Recommended RAM6 GBvs8 GB
Maximum Recommended Gaming Resolution1440x900vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 4850 Gigabyte 512MB Edition is a special edition of the high-end Radeon HD 4850.
The new features include an increase in the central unit that went from 625MHz to 640MHz, while the operating memory clock was reduced to 940MHz. A new cooling system is also available.
The performance ends up being exactly like the reference card.
Radeon R9 270X Sapphire Toxic 2GB OC Edition is a special edition of the high-end Radeon R9 270X.
This edition comes with a custom cooling system called "Tri-X", which reduces the card's temperature under load, significantly and comes overclocked out of the box in the central unit that was increased from 1000MHz to 1100MHz, while the Boost clock is now of 1150MHz. Also, the operating memory clock is now of 1500MHz.
Benchmarks indicate a 5% performance boost over the standard edition and so this card will surpass a Radeon HD 7950.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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