Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 950 2GB SLI GeForce GTX 660 Ti 3-way SLI
Hitman 3 77% 20%
Cyberpunk 2077 36% 7%
Assassins Creed: Valhalla 25% 15%
FIFA 21 31% 53%
Grand Theft Auto VI 92% 30%
Call of Duty: Black Ops Cold War 20% 18%
Resident Evil 8 36% 7%
Genshin Impact 36% 7%
Far Cry 6 97% 34%
The Medium 70% 16%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 Ti 3-way SLI are significantly better than the Nvidia GeForce GTX 950 2GB SLI.

The GTX 950 has a 109 MHz higher core clock speed than the GTX 660 Ti, but the GTX 660 Ti has 240 more Texture Mapping Units than the GTX 950. As a result, the GTX 660 Ti exhibits a 209.1 GTexel/s better Texture Fill Rate than the GTX 950. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 950 has a 109 MHz higher core clock speed than the GTX 660 Ti, but the GTX 660 Ti has 8 more Render Output Units than the GTX 950. As a result, the GTX 660 Ti exhibits a 0.40000000000001 GPixel/s better Pixel Fill Rate than the GTX 950. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GTX 950 was released over three years more recently than the GTX 660 Ti, and so the GTX 950 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 GTX 660 Ti has 2048 MB more video memory than the GTX 950, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 660 Ti also has superior memory performance overall.

The GTX 660 Ti has 221 GB/sec greater memory bandwidth than the GTX 950, which means that the memory performance of the GTX 660 Ti is massively better than the GTX 950.

The GeForce GTX 950 2GB SLI has 1536 Shader Processing Units and the GeForce GTX 660 Ti 3-way SLI has 4032. However, the actual shader performance of the GTX 950 is 2463 and the actual shader performance of the GTX 660 Ti is 3951. The GTX 660 Ti having 1488 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 660 Ti delivers a massively smoother and more efficient experience when processing graphical data than the GTX 950.

The GeForce GTX 950 2GB SLI requires 180 Watts to run and the GeForce GTX 660 Ti 3-way SLI requires 450 Watts. We would recommend a PSU with at least 450 Watts for the GTX 950. The GTX 660 Ti requires 270 Watts more than the GTX 950 to run. The difference is significant enough that the GTX 660 Ti may have an adverse affect on your yearly electricity bills in comparison to the GTX 950.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1024 MHzvs915 MHz
Boost Clock1188 MHzvs980 MHz
ArchitectureMaxwell GM206-250 (x2)Kepler GK104-200-KD-A2 (x3)
OC Potential Good vs Good
Driver Support Great vs Good
Release Date20 Aug 2015vs01 Aug 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs -
1600x900
10
green tick vs -
1920x1080
9.1
vs green tick
10
2560x1440
6.8
green tick vs -
3840x2160
5.2
green tick vs -

GPU Memory

Memory4096 MBvs6144 MB
Memory Speed1653 MHzvs1502 MHz
Memory Bus256 Bitvs576 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth211.6GB/secvs432.6GB/sec
L2 Cache 2048 KB green tick vs 1152 KB
Delta Color Compression yes vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1536vs4032
Actual Shader Performance100%vs100%
Technology28nmvs28nm
Texture Mapping Units96vs336
Texture Rate98.3 GTexel/svs307.4 GTexel/s
Render Output Units64vs72
Pixel Rate65.5 GPixel/svs65.9 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs0
HDMI Connections1vs0
DisplayPort Connections3vs-
Comparison

GPU Power Requirements

Max Power180 Wattsvs450 Watts
Recommended PSU450 Watts & 30 Amps-

GPU Features

DirectX12.1vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-4460 3.2GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GTX 950 2GB SLI is a solution of two GeForce GTX 950 2GB put together using NVIDIA's SLI technology.

Architecture
The Second variant of the Maxwell Architecture, despite being also manufactured with a 28nm technology, has an extremely large L2 Cache and features a Third Generation Delta Color Compression which allows NVIDIA to produce Graphics Cards with relatively small memory data transfer rates, without causing too much impact on the overall performance. Furthermore, the Shaders have been redesigned and are both more powerful and energy efficient.

GPU
It consists of 2 GPUs codenamed GM206-250 which, together, offer 1536 Shader Processing Units, 96 TMUs and 64 ROPs. The central unit runs at 1127MHz and goes up to 1178MHz, in Turbo Mode.

Memory
Each GPU accesses a 2GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1653MHz.

Power Consumption
Power Consumption is around 180W.

Performance
Gaming benchmarks prove that at 1920x1080, the best suited resolution, GeForce GTX 950 2GB SLI is only around 5% slower than the older GeForce GTX 780, meaning a single GeForce GTX 970 is still considerably faster.

System Suggestions
We recommend a Performance Processor and 8GB of RAM for Optimal Performance.
GeForce GTX 660 Ti 3-way SLI is a solution of three GeForce GTX 660 Ti put together using NVIDIA'S SLI technology.
Check the page of GeForce GTX 660 Ti to know more about its chip.
As usual, SLI relies a lot on proper driver support and may suffer from micro-stuttering in lower frame rates (below 30). Benchmarks indicate the performance is overall, is up to X% better than a single GeForce GTX 660 Ti performing by itself but at times (depending whether or not the 3D game supports SLI or in the graphics driver) it performed worse than a single GeForce GTX 660 Ti. Expect this combination to draw up to 450 Watt though the average power consumption should be slightly lower.
Even the most demanding games will run at the highest settings.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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