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Gaming Performance Comparison

Recommended System Requirements
Game GeForce RTX 2080 Ti SLI GeForce GTX 660 Ti MSI Gaming OC Edition

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce RTX 2080 Ti SLI are massively better than the Nvidia GeForce GTX 660 Ti MSI Gaming OC Edition.

The RTX 2080 Ti has a 317 MHz higher core clock speed and 160 more Texture Mapping Units than the GTX 660 Ti. This results in the RTX 2080 Ti providing 251.5 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 RTX 2080 Ti has a 317 MHz higher core clock speed and 64 more Render Output Units than the GTX 660 Ti. This results in the RTX 2080 Ti providing 94 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 RTX 2080 Ti was released over three years more recently than the GTX 660 Ti, and so the RTX 2080 Ti is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GTX 660 Ti 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 RTX 2080 Ti has 9216 MB more video memory than the GTX 660 Ti, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the RTX 2080 Ti also has superior memory performance overall.

The RTX 2080 Ti has 471.8 GB/sec greater memory bandwidth than the GTX 660 Ti, which means that the memory performance of the RTX 2080 Ti is massively better than the GTX 660 Ti.

The GeForce RTX 2080 Ti SLI has 4352 Shader Processing Units and the GeForce GTX 660 Ti MSI Gaming OC Edition has 1344. However, the actual shader performance of the RTX 2080 Ti is 7116 and the actual shader performance of the GTX 660 Ti is 1476. The RTX 2080 Ti having 5640 better shader performance and an altogether better performance when taking into account other relevant data means that the RTX 2080 Ti delivers a massively smoother and more efficient experience when processing graphical data than the GTX 660 Ti.

The RTX 2080 Ti transistor size technology is 16 nm (nanometers) smaller than the GTX 660 Ti. This means that the RTX 2080 Ti is expected to run slightly cooler and achieve higher clock frequencies than the GTX 660 Ti.

The GeForce RTX 2080 Ti SLI requires 260 Watts to run and the GeForce GTX 660 Ti MSI Gaming OC Edition requires 150 Watts. We would recommend a PSU with at least 650 Watts for the RTX 2080 Ti and a PSU with at least 450 Watts for the GTX 660 Ti. The RTX 2080 Ti requires 110 Watts more than the GTX 660 Ti to run. The difference is significant enough that the RTX 2080 Ti may have an adverse affect on your yearly electricity bills in comparison to the GTX 660 Ti.

Can I Run It

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GPU Architecture

Core Speed1350 MHzvs1033 MHz
Boost Clock1635 MHzvs1098 MHz
ArchitectureTuring TU102-300A-K1-A1Kepler GK104-300-KD-A2
OC Potential - vs Fair
Driver Support - vs Good
Release Date20 Sep 2018vs01 Aug 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs -
1600x900
10
green tick vs
9.8
1920x1080
10
green tick vs
6.3
2560x1440
10
green tick vs
5.7
3840x2160
10
green tick vs
4

GPU Memory

Memory11264 MBvs2048 MB
Memory Speed1750 MHzvs1502 MHz
Memory Bus352 Bitvs192 Bit
Memory TypeGDDR6vsGDDR5
Memory Bandwidth616GB/secvs144.2GB/sec
L2 Cache 6144 KB green tick vs 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units4352vs1344
Actual Shader Performance100%vs71%
Technology12nmvs28nm
Texture Mapping Units272vs112
Texture Rate367.2 GTexel/svs115.7 GTexel/s
Render Output Units88vs24
Pixel Rate118.8 GPixel/svs24.8 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)7680x4320vs4096x2160
VGA Connections0vs0
DVI Connections0vs2
HDMI Connections1vs1
DisplayPort Connections3vs-
Comparison

GPU Power Requirements

Max Power260 Wattsvs150 Watts
Recommended PSU650 Wattsvs450 Watts & 24 Amps

GPU Features

DirectX12.1vs12.0
Shader Model-vs5.0
Open GL-vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-8700K 6-Core 3.7GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM16 GBvs8 GB
Maximum Recommended Gaming Resolution3840x2160vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview GeForce RTX 2080 Ti is the top RTX 20 Series graphics card and considered an Enthusiast graphics card based on the Turing architecture. Architecture The Turing architecture represents a process shrink down to 12nm compared to 14nm Pascal. The Turing architecture provides the world's first consumer support for real-time ray-tracing technology, or RTX. GPU It equips a GPU Codenamed TU102 which has 4352 Shader Processing Units, 272 TMUs and 88 ROPs. The central unit runs at 1350MHz and goes up to 1545MHz in Boost mode. It also has 544 Tensor Cores for AI purposes. Memory The GPU accesses an 11GB frame buffer of first-gen GDDR6 memory through a 352-bit memory interface, while the Memory clock operates at 1750MHz, or 14GHz effective. Power Consumption With a rated board TDP of 285W, it requires at least a 650W PSU with two 8-pin power connectors. System Suggestions GeForce RTX 2080 Ti is best suited for resolutions up to and including 3840x2160. We recommend a top-End Processor and at least 16GB of RAM for optimal performance.GeForce GTX 660 Ti MSI Gaming OC Edition is a special edition of GeForce GTX 660 Ti.
The new features include the TwinFrozR cooling solution which is more effective than the standard/reference cooler. In terms of overclocking, the base-clock was increased from 915MHz to 1033MHz and the boost clock can now reach 1098MHz, instead of 980MHz. The memory clock was left untouched.
The overclocking is quite relevant and benchmarks indicate the performance boost is around 5.5% when compared to standard GeForce GTX 660 Ti.
Recommended CPU-Intel Core i7-4785T 4-Core 2.2GHz
Intel Xeon E5-2407 v2
Intel Core i5-4570 3.2GHz
Intel Core i5-4670S 3.1GHz
Intel Xeon Processor W3670
Possible GPU Upgrades-Radeon R9 390X Sapphire Nitro w/ Back Plate 8GB Edition
Radeon R9 390X Club3D royalQueen OC 8GB Edition
Radeon R9 390X XFX Double Dissipation 8GB Edition
Radeon R9 390X Asus DirectCU II 8GB Edition
Radeon R9 390X Gigabyte G1 Gaming 8GB Edition
GPU Variants--

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