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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 6670 v2 Gigabyte OC 1GB Edition Radeon HD 3800 series
Cyberpunk 2077 884% 1209%
Assassins Creed: Valhalla 800% 1098%
Call of Duty: Black Ops Cold War 771% 1059%
FIFA 21 397% 560%
Watch Dogs Legion 849% 1163%
Microsoft Flight Simulator 771% 1059%
World of Warcraft: Shadowlands 1311% 1777%
Grand Theft Auto VI 1285% 1742%
Godfall 1498% 2026%
Genshin Impact 884% 1209%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 6670 v2 Gigabyte OC 1GB Edition are noticeably better than the AMD Radeon HD 3800 series.

The HD 3800 has no core clock speed set, so any comparison between Texture and Pixel Fill Rates is not currently possible.

The HD 6670 was released over three years more recently than the HD 3800, and so the HD 6670 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the HD 3800 when running the latest games.

The HD 6670 has 512 MB more video memory than the HD 3800, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the HD 6670 also has superior memory performance overall.

The HD 6670 has 28.8 GB/sec greater memory bandwidth than the HD 3800, which means that the memory performance of the HD 6670 is slightly better than the HD 3800.

The Radeon HD 6670 v2 Gigabyte OC 1GB Edition has 480 Shader Processing Units and the Radeon HD 3800 series has 320. However, the actual shader performance of the HD 6670 is 197 and the actual shader performance of the HD 3800 is 0. The HD 6670 having 197 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 6670 delivers a noticeably smoother and more efficient experience when processing graphical data than the HD 3800.

The HD 6670 transistor size technology is 15 nm (nanometers) smaller than the HD 3800. This means that the HD 6670 is expected to run slightly cooler and achieve higher clock frequencies than the HD 3800.

The Radeon HD 6670 v2 Gigabyte OC 1GB Edition requires 66 Watts to run but there is no entry for the Radeon HD 3800 series. We would recommend a PSU with at least 400 Watts for the HD 6670.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed820 MHzvs-
Boost Clock-vs-
ArchitectureTerascale 2 Turks XTRV670
OC Potential Fair vs -
Driver Support Poor vs -
Release Date19 Apr 2011vs01 Nov 2007
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
green tick vs -
green tick vs -
green tick vs -
3840x2160 - green tick vs green tick -

GPU Memory

Memory1024 MBvs512 MB
Memory Speed900 MHzvs-
Memory Bus128 Bitvs256 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth28.8GB/secvs-
L2 Cache 256 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units480vs320
Actual Shader Performance9%vs-
Texture Mapping Units24vs16
Texture Rate19.7 GTexel/svs-
Render Output Units8vs16
Pixel Rate6.6 GPixel/svs-

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections1vs0
DVI Connections1vs0
HDMI Connections1vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power66 Watts-
Recommended PSU400 Watts & 27 Amps-

GPU Features

Shader Model5.0vs4.1
Open GL4.3vs3.2
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-530 2.9GHz-
Recommended RAM4 GB-
Maximum Recommended Gaming Resolution1366x768-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon HD 6670 v2 Gigabyte OC 1GB Edition is a special edition of AMD's fast-middle-class Radeon HD 6670 v2, created by Gigabyte.

Overclock Out of The Box
The Central Unit now runs at 820MHz, instead of 800MHz while the Memory Clock now operates at 900MHz.

Cooling Solution
The Cooling System has Gigabyte's custom-designed 10cm cooler.

Benchmarks indicate a 2% performance over the reference Radeon HD 6670 v2.
Radeon HD 3800 Series is not a GPU but instead a combination between Radeon HD 3830, Radeon HD 3850 and Radeon HD 3870 whose rank is a balance between the three and that exists for System Requirements purposes only.
Recommended CPU
Possible GPU Upgrades
GPU Variants