Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 660 Ti MSI OC v1 Edition Radeon HD 7870 PCS+ Vortex II Edition
Cyberpunk 2077 94% 103%
Assassins Creed: Valhalla 78% 86%
Call of Duty: Black Ops Cold War 72% 80%
FIFA 21 2% 2%
Microsoft Flight Simulator 72% 80%
World of Warcraft: Shadowlands 179% 191%
Watch Dogs Legion 87% 96%
Horizon: Zero Dawn 84% 92%
Grand Theft Auto VI 173% 186%
Genshin Impact 94% 103%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 Ti MSI OC v1 Edition are marginally better than the AMD Radeon HD 7870 PCS+ Vortex II Edition.

The HD 7870 has a 209 MHz higher core clock speed than the GTX 660 Ti, but the GTX 660 Ti has 32 more Texture Mapping Units than the HD 7870. As a result, the GTX 660 Ti exhibits a 13.4 GTexel/s better Texture Fill Rate than the HD 7870. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 7870 has a 209 MHz higher core clock speed and 8 more Render Output Units than the GTX 660 Ti. This results in the HD 7870 providing 14.2 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 Ti was released less than a year after the HD 7870, and so they are likely to have similar driver support for optimizing performance when running the latest games.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The GeForce GTX 660 Ti MSI OC v1 Edition and the Radeon HD 7870 PCS+ Vortex II Edition have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The HD 7870 has 15.8 GB/sec greater memory bandwidth than the GTX 660 Ti, which means that the memory performance of the HD 7870 is slightly better than the GTX 660 Ti.

The GeForce GTX 660 Ti MSI OC v1 Edition has 1344 Shader Processing Units and the Radeon HD 7870 PCS+ Vortex II Edition has 1280. However, the actual shader performance of the GTX 660 Ti is 1371 and the actual shader performance of the HD 7870 is 1251. The GTX 660 Ti having 120 better shader performance is not particularly notable, as altogether the HD 7870 performs better when taking into account other relevant data.

We would recommend a PSU with at least 500 Watts for the HD 7870, but we do not have a recommended PSU wattage for the GTX 660 Ti.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed941 MHzvs1150 MHz
Boost Clock1020 MHzvs-
ArchitectureKepler GK104-300-KD-A2GCN 1.0 Pitcairn XT
OC Potential Fair vs Poor
Driver Support Good vs Good
Release Date01 Oct 2012vs01 Sep 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
9.7
green tick vs
9.5
1920x1080
7.6
green tick vs
7.5
2560x1440
5.6
green tick vs
5.5
3840x2160
3.9
green tick vs green tick
3.9

GPU Memory

Memory2048 MBvs2048 MB
Memory Speed1502 MHzvs1250 MHz
Memory Bus192 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth144.2GB/secvs160GB/sec
L2 Cache 384 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 Units1344vs1280
Actual Shader Performance66%vs60%
Technology28nmvs28nm
Texture Mapping Units112vs80
Texture Rate105.4 GTexel/svs92 GTexel/s
Render Output Units24vs32
Pixel Rate22.6 GPixel/svs36.8 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power--
Recommended PSU-500 Watts

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3570K 3.4GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 660 Ti MSI OC v1 Edition is a special edition of GeForce GTX 660 Ti.
The new features include overclocking out of the box, whereas the base-clock was increased from 915MHz to 941MHz and the boost clock can now reach 1020MHz, instead of 980MHz. The memory clock was left untouched.
The overclocking is not very significant and benchmarks indicate the performance is about 1.5% better when compared to the standard edition.
Radeon HD 7870 PCS+ Vortex II Edition is a special edition of Radeon HD 7870.
This is one of today's most powerful editions of the reference as it features increases in both the core and memory clocks that went from 1000MHz to 1150MHz and from 1200MHz to 1250MHz.
Benchmarks indicate the performance boost is quite extreme and around 8% when compared to the reference Radeon HD 7870.
Recommended CPU
Possible GPU Upgrades
GPU Variants
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