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Graphics cards Reviews
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eVGA GTX 660 Ti review

£263 inc VAT

Manufacturer: EVGA

Nvidia takes the same chip as the GTX 670, clocks it down a bit, disables one feature and calls it something new. Here's our eVGA GTX 660 Ti review.

Nvidia's been getting a lot of mileage out of the same Kepler desktop chip that's used in both the GTX 670 and GTX 680 graphics card. The GTX 670 had one functional block disabled, but the new GTX 660 really only cuts out one key feature: one of the memory controller blocks. This reduces the data width to memory to 192 bits wide, versus the 256 bit pathways available on the GTX 680 and GTX 670. Since the ROP (raster operations) unit is part of that block, the number of ROP units are now 24 instead of 32. The clock rate is a little lower as well. See also: Nvidia GTX 660 Ti review – including SLI and 3-way SLI

eVGA GTX 660 Ti: Speeds and Feeds

Let's take a quick look at the speeds and feeds for the GTX 670 graphics card, and see just how it's different from its pricier cousin. Note that clock frequencies are for eVGA SC model, which is clocked slightly higher than Nvidia's reference card. Other shipping retail boards may differ in clock frequencies, depending on the design of the board and what the company shipping the board wants to support. The target price for the base GTX 660 Ti will be £249; the superclocked eVGA model we tested is priced at £264. See also: Group test: what's the best graphics card?


eVGA GTX 660

GTX 670

GTX 680

Graphics Cores




Texture Units








Base Clock Frequency


915 MHz

1,006 MHz

Boost Clock Frequency


980 MHz

1,058 MHz

Memory (Frequency)

2GB (1,502MHz)

2GB GDDR5 (1,502 MHz)

2GB GDDR5 (1,502 MHz)

Memory Interface




Transistor Count

3.5 billion

3.5 billion

3.5 billion

Display Connectors

2 x Dual Link DVI, 2 x HDMI 1.4a (Fast), 2 x DisplayPort 1.2

2 x Dual Link DVI, 2 x HDMI 1.4a (Fast), 2 x DisplayPort 1.2

2 x Dual Link DVI, 2 x HDMI 1.4a (Fast), 2 x DisplayPort 1.2

Power Connectors

2 x 6-pin PCIe

2 x 6-pin PCIe

2 x 6-pin PCIe

Thermal Design Power (TDP)




That's the base specs in a nutshell. It's time to check out how the reference board actually performs.

eVGA GTX 660 Ti: Performance

Performance data was collected using FutureMark's 3DMark 2011 and four DirectX 11 games: Crysis 2, , DiRT3, Metro 2033 and Batman: Arkham City. Game tests were run at 1920 x 1200 pixel resolution with 4x multisampling anti-aliasing enabled. Also, system power under idle and load was measured using a Watts Up Pro power meter. The system used for testing consisted of a Core i7 3960X running at 3.3GHz with 12GB of DDR3 running at 1600MHz. Power supply, motherboard and other hardware remained constant during the entire run, as well as the operating system, Windows 7 Ultimate x64.

I compared performance to AMD's equivalently priced Radeon HD 7870 GHz Edition, in the guise of the Asus HD 7870 DirectCU II. I didn't have time to rerun all the benchmarks with the older GTX 560 Ti, but initial testing indicates that the 660 Ti is definitely a step up in performance.

eVGA GTX 660 Ti

The eVGA card easily bests wins this synthetic test. 3DMark 2011 isn't comparable to games, but does test most DirectX 11 features.

 eVGA GTX 660 Ti

The GTX 660 wins out over the Radeon by about 10%, in Batman: Arkham Asyslum, which is a pretty substantial difference.

 eVGA GTX 660 Ti

The difference in performance with Crysis 2 between the eVGA and Asus cards is smaller than in Arkham Asylum, but still worth noting.

 eVGA GTX 660 Ti

Here, the roles are reversed slightly. The GTX 660 Ti is just a bit slower than the Radeon HD 7870 GHz Edition.

eVGA GTX 660 Ti

What gives? The Asus Radeon card pulls out a big win in this game over the GTX 660. In this case, however, it's not purely a graphics issue. DiRT Showdown uses the Microsoft's DirectCompute interface to perform some serious floating point calculations for two key feature: global illumination and advanced lighting. The AMD GPU is substantially better at pure computation than the Nvidia chip, which gives it an edge. Note that most games have yet to make heavy use of the GPU in general compute tasks, so it's unlikely you'll see big differences, and the GTX 660 tends to perform better in games which don't make heavy use of GPU compute.

 nVidia GeForce GTX 660 Ti

It's impressive how idle power has improved on all the current generation cards. There's really little practical difference in power usage between these two cards.

eVGA GTX 660 Ti Expert Verdict »

Evga GF GTX 660 Ti 2GB reviews verified by Reevoo

Evga GF GTX 660 Ti 2GBScores 9.1 out of 10 based on 103 reviews
- Core Clock: 980MHz (GK104) - Core Boost Clock: 1069MHz - Memory: 2048MB GDDR5 - Memory Clock: 6008MHz (Effective) - Memory Interface: 192-Bit - Processing Cores: 1344 - Shader Clock: 1960MHz - Bus Type: PCI-Express GEN 3.0 (Backwards compatible) - Display Connectors: 2x Dual-Link DVI-I, 1x HDMI 1.4a & 1x Displayport - SLI Ready (Upto 3-Way SLI Supported) - HDCP Capable - DirectX 11 Support - OpenGL 4.0 Support - PhysX Enabled - CUDA Enabled - 3D Vision Enabled - NVIDIA Surround Enabled - Lower power consumption (Maximum consumption 170 watts at stock speed) - 2x 6-Pin PCI-E Connectors required - TDP: 150W - Warranty: 3 Years (upgradable to 10years with registration)

At this price the eVGA GTX 660 Ti is aimed at gamers who want very good performance without spending the £400 or more for higher end cards. These users tend to hold onto their cards for 2-3 years, so are likely upgrading from an older GTX 260 card. If so, the GTX 660 offers pretty substantial performance gains, as well as the ability to run DirectX 11 titles. The card is surprisingly compact for its performance, and should fit in most mid-tower cases – even those lacking the depth to handle some higher end cards. Power supply requirements should be modest – a good 500W PSU should do the trick. The eVGA GTX 660 Ti is efficient, compact and offers very good performance at its price. If you're a serious PC gamer without an unlimited budget, and have been making do with that two year old card, it's time to think seriously about upgrading.

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