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Nvidia GeForce GTX 550 Ti review

Our Rating :
Price when reviewed : £116
inc VAT

It's compact and power-efficient, but Nvidia's GeForce GTX 550 Ti doesn't have the grunt to match the competition from AMD.

We gave the fast and overclockable Nvidia GeForce GTX 560 Ti a Best Buy award in January. The 550 Ti is the mid-range card from the same range, which goes head-to-head with the AMD Radeon HD 6790.

PNY GTX 550 Ti

Unlike the surprisingly large HD 6790, the 550 Ti is a fairly compact card. It still takes up two expansion slots in your case, but is 223mm rather than 262mm long and only needs a single six-pin PCI Express power connector. It draws just 116W under load, compared to the HD 6790’s 150W. On the rear are two DVI connectors and a mini-HDMI, so you’ll need the appropriate lead, or an adaptor, to connect it to an HDMI display – PNY’s version of the GTX 550 Ti (£116 from has an adaptor in the box.

Nvidia groups its stream processors into clusters, which it calls Streaming Multiprocessors. The GTX 550 Ti has four clusters of 48 stream processors, giving a total of 192 – the much more expensive GTX 560 Ti has eight clusters, for 384 stream processors in total.

This means that, despite its fast 900MHz clock speed and 1GB of GDDR5 memory, it’s no powerhouse. The GTX 550 Ti lagged behind the similarly-priced AMD Radeon HD 6790 in all our tests. In Crysis at 1,680×1,050 with High detail and 4x anti-aliasing, it could only manage 35.6fps compared to 41.8fps, and when we raised the resolution to 1,920×1,080 our frame rate dropped to a barely-smooth 31.2fps, compared to 37.2fps for the AMD card. In our DirectX 11 Stalker test Nvidia’s card came out with a below-par 28.3fps compared to the Radeon HD 6790’s smoother 33.8fps.

MSI Afterburner

The GTX 550 Ti was easy to overclock with MSI’s free Afterburner tool. We pushed up the clock speed to 998MHz and the memory to 1,996MHz, which gave us a 2-3fps boost in all our tests. This still wasn’t enough to catch up with AMD’s card, though.

While Nvidia’s enthusiast 560 Ti is strong competition for AMD’s Radeon HD 6950, the GTX 550 Ti can’t compete with AMD’s latest mid-range cards. The Radeon HD 6790 and HD 6850 remain our favourite graphics cards for gamers on a medium-sized budget.

Basic Specifications

Price £116
Rating ***
Interface PCI Express x16
Crossfire/SLI SLI
Slots taken up 2
Brand nVidia
Graphics Processor Nvidia GeForce GTX 550 Ti
Memory 1,024MB GDDR5
Memory interface 192-bit
GPU clock speed 900MHz
Memory speed 1.03GHz
Card length 223mm


Architecture 192 stream processors
Anti aliasing 16x
Anisotropic filtering 16x


DVI outputs 2
VGA outputs 0
S-video output no
S-Video input no
Composite outputs no
Composite inputs no
Component outputs no
HDMI outputs 1
Power leads required 1x 6-pin PCI Express


Accessories none
Software included none

Benchmark Results

3DMark Vantage 1680 N/A
Call of Duty 4 1680 4xAA 67.9fps
Call of Duty 4 1440 4xAA 80.2fps
Crysis 1680 High 4xAA 35.9fps
Crysis 1440 High 4xAA 44.5fps

Buying Information

Warranty N/A
Price £116

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