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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 6670 v2 Sapphire 1GB Edition GeForce GT 545 3GB
New World 789% 614%
Resident Evil 8 1207% 950%
Grand Theft Auto VI 1313% 1036%
Battlefield 2042 1207% 950%
Far Cry 6 1353% 1068%
Forza Horizon 5 691% 536%
FIFA 22 407% 307%
The Ascent 1656% 1311%
Dying Light 2 1264% 996%
Days Gone 851% 664%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 545 3GB are noticeably better than the AMD Radeon HD 6670 v2 Sapphire 1GB Edition.

The HD 6670 has a 80 MHz higher core clock speed and the same number of Texture Mapping Units as the GT 545. This results in the HD 6670 providing 1.9 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 6670 has a 80 MHz higher core clock speed than the GT 545, but the GT 545 has 8 more Render Output Units than the HD 6670. As a result, the GT 545 exhibits a 5.1 GPixel/s better Pixel Fill Rate than the HD 6670. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GT 545 was released less than a year after the HD 6670, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GT 545 has 2048 MB more video memory than the HD 6670, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GT 545 also has superior memory performance overall.

The GT 545 has 12.8 GB/sec greater memory bandwidth than the HD 6670, which means that the memory performance of the GT 545 is slightly better than the HD 6670.

The Radeon HD 6670 v2 Sapphire 1GB Edition has 480 Shader Processing Units and the GeForce GT 545 3GB has 144. However, the actual shader performance of the HD 6670 is 192 and the actual shader performance of the GT 545 is 207. The GT 545 having 15 better shader performance and an altogether better performance when taking into account other relevant data means that the GT 545 delivers a marginally smoother and more efficient experience when processing graphical data than the HD 6670.

The Radeon HD 6670 v2 Sapphire 1GB Edition requires 66 Watts to run and the GeForce GT 545 3GB requires 70 Watts. We would recommend a PSU with at least 400 Watts for the HD 6670 and a PSU with at least 400 Watts for the GT 545. The GT 545 requires 4 Watts more than the HD 6670 to run. The difference is not significant enough for the GT 545 to have a noticeably larger impact on your yearly electricity bills than the HD 6670.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed800 MHzvs720 MHz
Boost Clock-vs-
ArchitectureTerascale 2 Turks XTFermi GF116-400-A1
OC Potential Fair vs Fair
Driver Support Poor vs Poor
Release Date19 Apr 2011vs14 May 2011
GPU LinkGD LinkGD Link

Resolution Performance

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3840x2160 - green tick vs green tick -

GPU Memory

Memory1024 MBvs3072 MB
Memory Speed800 MHzvs800 MHz
Memory Bus128 Bitvs192 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth25.6GB/secvs38.4GB/sec
L2 Cache 256 KB vs green tick 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units480vs144
Actual Shader Performance9%vs10%
Texture Mapping Units24vs24
Texture Rate19.2 GTexel/svs17.3 GTexel/s
Render Output Units8vs16
Pixel Rate6.4 GPixel/svs11.5 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections1vs1
DVI Connections1vs1
HDMI Connections1vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power66 Wattsvs70 Watts
Recommended PSU400 Watts & 27 Ampsvs400 Watts & 29 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.3vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-530 2.9GHzvsIntel Core i3-2130 3.4GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

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

Overclock Out of The Box
The Clock Frequencies of both Central Unit and Operating Memory Clock Remain the Same.

Cooling Solution
The Cooling System remains the same.

Without Overclocking Out of The Box, Radeon HD 6670 v2 Sapphire 1GB Edition is as fast as the reference Radeon HD 6670 v2.
GeForce GT 545 3GB is a Fast-Middle-Class Graphics Card based on the second revision of the Fermi Architecture.

The Fermi Architecture is manufactured with a 40nm technology and uses a technique known as Hot Clocking: The Shaders are clocked twice as fast as the Central Unit. While this leads to a reasonable performance boost, it causes enormous amounts of energy dissipation, leading, ultimately, to a significantly higher operating temperature.
Fermi is also the first GPU architecture with fully cached memory access which increases memory performance.

It equips a GPU Codenamed GF116-400-A1 which has 3 Stream Multiprocessors activated and thus offers 144 Shader Processing Units, 24 TMUs and 16 ROPs. The Central Unit is clocked at 720MHz.

The GPU accesses a 3GB frame buffer of DDR3, through a 192-bit memory interface. The size of the frame buffer is exaggerated and in no way benefits the GPU. The Memory Clock Operates at 800MHz.

DirectX 11.0 Support (11.0 Hardware Default) and support for SLI, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

Cooling Solution
The Cooling Solution consists of a Single-Fan.

Power Consumption
With a rated board TDP of 70W, it requires at least a 400W PSU and it relies entirely on the PCI Slot for power, meaning no extra connectors are required.

Gaming benchmarks put its performance slightly above Radeon HD 6670 v2.

System Suggestions
We recommend a modest processor (Intel Core i3) and 8GB of RAM for a system with GeForce GT 545 3GB.
Recommended CPU
Possible GPU Upgrades
GPU Variants