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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 660 Ti KFA² EX OC 2GB Edition Radeon R9 270X Sapphire Dual-X 4GB OC Edition

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 Ti KFA² EX OC 2GB Edition are marginally better than the AMD Radeon R9 270X Sapphire Dual-X 4GB OC Edition.

The R9 270X has a 14 MHz higher core clock speed than the GTX 660 Ti, but the GTX 660 Ti has 32 more Texture Mapping Units than the R9 270X. As a result, the GTX 660 Ti exhibits a 31.1 GTexel/s better Texture Fill Rate than the R9 270X. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The R9 270X has a 14 MHz higher core clock speed and 8 more Render Output Units than the GTX 660 Ti. This results in the R9 270X providing 8.5 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 270X was released over a year more recently than the GTX 660 Ti, and so the R9 270X 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 270X has 2048 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 270X also has superior memory performance overall.

The R9 270X has 35 GB/sec greater memory bandwidth than the GTX 660 Ti, which means that the memory performance of the R9 270X is noticeably better than the GTX 660 Ti.

The GeForce GTX 660 Ti KFA² EX OC 2GB Edition has 1344 Shader Processing Units and the Radeon R9 270X Sapphire Dual-X 4GB OC Edition has 1280. However, the actual shader performance of the GTX 660 Ti is 1457 and the actual shader performance of the R9 270X is 1164. The GTX 660 Ti having 293 better shader performance is not particularly notable, as altogether the R9 270X performs better when taking into account other relevant data.

The GeForce GTX 660 Ti KFA² EX OC 2GB Edition requires 150 Watts to run and the Radeon R9 270X Sapphire Dual-X 4GB OC Edition requires 180 Watts. We would recommend a PSU with at least 450 Watts for the GTX 660 Ti and a PSU with at least 500 Watts for the R9 270X. The R9 270X requires 30 Watts more than the GTX 660 Ti to run. The difference is not significant enough for the R9 270X to have a noticeably larger impact on your yearly electricity bills than the GTX 660 Ti.

Can I Run It

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GPU Architecture

Core Speed1006 MHzvs1020 MHz
Boost Clock1084 MHzvs1070 MHz
ArchitectureKepler GK104-300-KD-A2GCN 1.1 Curacao XT
OC Potential Poor vs Poor
Driver Support Good vs Great
Release Date16 Aug 2012vs08 Oct 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
9.8
green tick vs
9.5
1920x1080
7.8
green tick vs
7.6
2560x1440
5.6
green tick vs
5.5
3840x2160
4
green tick vs green tick
4

GPU Memory

Memory2048 MBvs4096 MB
Memory Speed1502 MHzvs1400 MHz
Memory Bus192 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth144.2GB/secvs179.2GB/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 Performance70%vs56%
Technology28nmvs28nm
Texture Mapping Units112vs80
Texture Rate112.7 GTexel/svs81.6 GTexel/s
Render Output Units24vs32
Pixel Rate24.1 GPixel/svs32.6 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power150 Wattsvs180 Watts
Recommended PSU450 Watts & 33 Ampsvs500 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 i5-4430 3.0GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GTX 660 Ti KFA² EX OC 2GB Edition is a special edition of NVIDIA's Performance GeForce GTX 660 Ti 2GB, created by KFA².

Overclock: Central Unit
The Central Unit now runs at 1006MHz, instead of 915MHz and goes up to 1084MHz, in Turbo Mode.

Overclock: Memory Clock
The Operating Memory Clock and the Frame Buffer remain the same.

Cooling Solution
The reference NVIDIA Single-Fan Cooling System has been replaced by KFA²'s Custom dual fan cooler with quad nickel-plated head pipes.

Performance
Benchmarks indicate a 5% performance over the reference GeForce GTX 660 Ti.
Radeon R9 270X Sapphire Dual-X 4GB OC Edition is a special edition of the high-end Radeon R9 270X.
This edition comes with a custom cooling system called "Vapor-X", which reduces the card's temperature under load, significantly and comes overclocked out of the box in the central unit that was increased from 1000MHz to 1020MHz, while the Boost clock is now of 1070MHz.
Furthermore, the card has twice as much memory when compared to the reference card. However, this card will not benefit from extra memory and thus such feature ends up being useless.
Expect little or no performance boost over the standard edition and exactly the same performance as "Radeon R9 270X Sapphire Dual-X 2GB OC Edition"
Recommended CPUIntel Core i3-4160 3.6GHz
Intel Core i3-4330 3.5GHz
Intel Core i5-3470T 2.8GHz
AMD Phenom II X4 965
AMD Phenom II X4 965 Black Edition
Intel Xeon E5-2620 v2
Intel Core i7-2600S 4-Core 2.8GHz
Intel Core i3-7320 2-Core 4.1GHz
Intel Core i5-2550K 3.4GHz
Intel Core i5-4460S 2.9GHz
Possible GPU UpgradesRadeon 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
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GPU Variants--

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