Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 5670 Diamond 1GB GDDR5 GeForce GTX 660 Zotac AMP Edition
Halo: Reach 171% 35%
Cyberpunk 2077 1072% 183%
Dragon Ball Z Kakarot 426% 27%
Red Dead Redemption 2 753% 106%
Call of Duty: Modern Warfare 753% 106%
Microsoft Flight Simulator 1072% 183%
Doom Eternal 634% 77%
Grand Theft Auto VI 1204% 215%
FIFA 20 355% 10%
Need For Speed Heat 753% 106%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 Zotac AMP Edition are massively better than the AMD Radeon HD 5670 Diamond 1GB GDDR5.

The GTX 660 has a 271 MHz higher core clock speed and 60 more Texture Mapping Units than the HD 5670. This results in the GTX 660 providing 68.2 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 GTX 660 has a 271 MHz higher core clock speed and 16 more Render Output Units than the HD 5670. This results in the GTX 660 providing 18.9 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 GTX 660 was released over a year more recently than the HD 5670, and so the GTX 660 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 5670.

The GTX 660 has 1024 MB more video memory than the HD 5670, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 660 also has superior memory performance overall.

The GTX 660 has 94.6 GB/sec greater memory bandwidth than the HD 5670, which means that the memory performance of the GTX 660 is massively better than the HD 5670.

The Radeon HD 5670 Diamond 1GB GDDR5 has 400 Shader Processing Units and the GeForce GTX 660 Zotac AMP Edition has 960. However, the actual shader performance of the HD 5670 is 155 and the actual shader performance of the GTX 660 is 1067. The GTX 660 having 912 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 660 delivers a massively smoother and more efficient experience when processing graphical data than the HD 5670.

The GTX 660 transistor size technology is 12 nm (nanometers) smaller than the HD 5670. This means that the GTX 660 is expected to run slightly cooler and achieve higher clock frequencies than the HD 5670.

We would recommend a PSU with at least 400 Watts for the HD 5670.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed775 MHzvs1046 MHz
Boost Clock-vs1111 MHz
ArchitectureTerascale 2 Redwood XTKepler GK106-400-A1
OC Potential Fair vs Poor
Driver Support Poor vs Good
Release Date01 Feb 2010vs01 Sep 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - vs green tick
9.1
1920x1080 - vs green tick
7.2
2560x1440 - vs green tick
5.2
3840x2160 - vs green tick
3.5

GPU Memory

Memory1024 MBvs2048 MB
Memory Speed1000 MHzvs1652 MHz
Memory Bus128 Bitvs192 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth64GB/secvs158.6GB/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%
Comparison

GPU Display

Shader Processing Units400vs960
Actual Shader Performance7%vs51%
Technology40nmvs28nm
Texture Mapping Units20vs80
Texture Rate15.5 GTexel/svs83.7 GTexel/s
Render Output Units8vs24
Pixel Rate6.2 GPixel/svs25.1 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power--
Recommended PSU400 Watts-

GPU Features

DirectX11.0vs12.0
Shader Model5.0vs5.0
Open GL4.3vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Pentium Dual Core E5500 2.8GHzvsIntel Core i5-3470 3.2GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1440x900vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 5670 Diamond 1GB GDDR5 is a special edition of the middle-class Radeon HD 5670 that features a custom cooling system and no other change meaning its performance is on level with the reference AMD Radeon HD 5670 1GB but operates at lower temperatures.GeForce GTX 660 Zotac AMP Edition a special edition of GeForce GTX 660.
The new features include a new cooling system and in terms of overclocking, the base-clock was increased from 980MHz to 1046MHz and the boost clock can now reach 1111MHz, instead of 1033MHz. The memory clock was raised to 1652MHz.
Benchmarks indicate a 5.5% performance when compared to the reference card.
Recommended CPU
Possible GPU Upgrades
GPU Variants
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