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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 295X2 Crossfire GeForce GTX 660 Ti 3-way SLI
Cyberpunk 2077 38% 7%
Hitman 3 19% 20%
Assassins Creed: Valhalla 43% 15%
Resident Evil 8 38% 7%
FIFA 21 68% 53%
Grand Theft Auto VI 12% 30%
Call of Duty: Black Ops Cold War 45% 18%
The Medium 22% 16%
Genshin Impact 38% 7%
Far Cry 6 10% 34%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 295X2 Crossfire are significantly better than the Nvidia GeForce GTX 660 Ti 3-way SLI.

The R9 295X2 has a 103 MHz higher core clock speed and 368 more Texture Mapping Units than the GTX 660 Ti. This results in the R9 295X2 providing 409.3 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 R9 295X2 has a 103 MHz higher core clock speed and 120 more Render Output Units than the GTX 660 Ti. This results in the R9 295X2 providing 129.6 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 R9 295X2 was released over a year more recently than the GTX 660 Ti, and so the R9 295X2 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 660 Ti.

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 R9 295X2 has 10240 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 R9 295X2 also has superior memory performance overall.

The R9 295X2 has 847.4 GB/sec greater memory bandwidth than the GTX 660 Ti, which means that the memory performance of the R9 295X2 is massively better than the GTX 660 Ti.

The Radeon R9 295X2 Crossfire has 11264 Shader Processing Units and the GeForce GTX 660 Ti 3-way SLI has 4032. However, the actual shader performance of the R9 295X2 is 9747 and the actual shader performance of the GTX 660 Ti is 3951. The R9 295X2 having 5796 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 295X2 delivers a massively smoother and more efficient experience when processing graphical data than the GTX 660 Ti.

The Radeon R9 295X2 Crossfire requires 750 Watts to run and the GeForce GTX 660 Ti 3-way SLI requires 450 Watts. We would recommend a PSU with at least 1500 Watts for the R9 295X2. The R9 295X2 requires 300 Watts more than the GTX 660 Ti to run. The difference is significant enough that the R9 295X2 may have an adverse affect on your yearly electricity bills in comparison to the GTX 660 Ti.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1018 MHzvs915 MHz
Boost Clock-vs980 MHz
ArchitectureGCN 1.1 Versuvius XTKepler GK104-200-KD-A2 (x3)
OC Potential Fair vs Good
Driver Support Great vs Good
Release Date08 Apr 2014vs01 Aug 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

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

GPU Memory

Memory16384 MBvs6144 MB
Memory Speed1250 MHzvs1502 MHz
Memory Bus2048 Bitvs576 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth1280GB/secvs432.6GB/sec
L2 Cache 2048 KB green tick vs 1152 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units11264vs4032
Actual Shader Performance100%vs100%
Technology28nmvs28nm
Texture Mapping Units704vs336
Texture Rate716.7 GTexel/svs307.4 GTexel/s
Render Output Units192vs72
Pixel Rate195.5 GPixel/svs65.9 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power750 Wattsvs450 Watts
Recommended PSU1500 Watts & 50 Amps-

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4960X 6-Core 3.60GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM12 GBvs8 GB
Maximum Recommended Gaming Resolution5760x1600vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewBehold, the Crossfire solution of the dual graphics - Radeon R9 295X2.
This combination will require an extremely powerful Gold Certified PSU to be properly powered (or 2 x Strong PSUs) and will draw over 700W under load.
Unfortunately and may be due to poor driver support, benchmarks indicate, on average, a modest 15% performance boost over a single Radeon R9 295X2, whereas in some modern 3D games there is little to no performance increase.
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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