Intel Core i5-3570K
Like the
Core i7-3770K, the Core i5-3570K looks very similar on paper to the Sandy
Bridge-based Core i5-2500K it’s designed to replace. However, it has a slightly
higher stock clock speed of 3.4GHz compared to the 2500K’s 3.3GHz, and it will
Turbo Boost all the way to 3.8GHz too. Like the Core i7-3770K, it also has a
low TDP of 77W.
As with the
Sandy Bridge architecture, the main difference between the top end Core i5 and
i7 chips is that the i5 CPUs don’t support Hyper-Threading, so you get the four
physical cores and that’s it. They also have slightly less L3 cache, with the
Core i5-3570K’s four cores sharing a 6MB pool, compared to the 8MB allocation
in the Core i7-3770K.
Performance
The Core
i5-3570K’s extra 100MHz over its predecessor stood it in good stead in our
benchmarks at stock speed, as did Intel’s tweaks to the core
The Core
i5-3570K’s extra 100MHz over its predecessor stood it in good stead in our
benchmarks at stock speed, as did Intel’s tweaks to the core. In our Gimp image
editing test, the CPU clocked up an impressive score of 1,862 – 147 more points
than the i5-3550K. Not surprisingly, though, it fell behind the i7-3770K in our
multi-threaded Handbrake video encoding test, with a score of 3,160 compared to
4,245. However, once you factor in the multi-tasking test, the CPU’s overall
score of 2,248 was only 155 points behind the i7-3770K overall – a good result
for a chip that only costs $243.
As we
expect, the Core i5-3570K also noticeably lagged behind the i7-3770K in WPrime
and Cinebench. The Core i5-3570K turned out to be a great gaming chi, though.
It’s minimum of 92fps in Arma II matches the frame rate of the Core i7-2600K,
and is a comfortable distance in front of the Core i5-2500K’s 85fps. Meanwhile,
in our Total War: Shogun 2 CPU test, the i5-3570K was only second to the
i7-3770K, with its 28fps minimum placing it a long way in front of the 18fps
from the Sandy Bridge chips.
Overclocking
The
i5-3570K suffers from heat problems when you push up the clock frequency
As with the
Core i7-3770K, the i5-3570K suffers from heat problems when you push up the
clock frequency, but we found it has a little more headroom in it, possibly
because the lack of Hyper-Threading support meant the CPU cores weren’t
stressed to such a degree when running multi-threaded benchmarks.
We managed
to get the CPU to run at 5GHz using a Corsair H100, although the core
temperature was disturbingly close to the TJ max temperature at which the CPU
throttles. Nevertheless, it was stable enough to run our benchmarks at these
settings, and we only needed to tweak the multiplier and set the CPU voltage to
1.4V to achieve this.
This extra
headroom effectively gave the Core i5-3570K a head start over the i7-3770K in
many tests, including our Gimp image editing test, and even our multi-threaded
Handbrake test, showing that an extra 200MHz makes a greater difference than
Hyper-Threading support here. However, the Core i7-3770K was still quicker in
WPrime 2.05 and Cinebench.
What’s even
more remarkable is that the chip still didn’t draw that much power from the
mains at these settings. Our system drew 267W with the CPU fully loaded,
compared to 311W from a Core i5-2500K running at the same clock speed.
Conclusion
There’s
little doubt that you’ll need a powerful liquid cooling system if you want to
overclock the Core i5-3570K to its limits and, as with the i7-3770K, there’s no
compelling reason to upgrade to it from a Sandy Bridge system.
However, at
$243 inc VAT, it’s still a fast CPU that also offers fantastic power efficiency
and great value for money. If you’re upgrading an old system, and you aren’t
using heavily multi-threaded 3D rendering software, then this is a great CPU
for the money.
|
Detail
|
|
|
Price
|
$243 inc VAT
|
|
|
Supplier
|
www.scan.co.uk
|
|
|
Manufacturer
|
www.intel.co.uk
|
|
|
SKU number
|
CM8063701211800
|
|
|
Frequency
|
3.4GHz
|
|
|
Turbo Boost Frequency
|
3.8GHz
|
|
|
CPU core
|
Ivy Bridge
|
|
|
Graphics core
|
650MHz Intel HD 4000
|
|
|
Manufacturing process
|
22nm
|
|
|
Number of cores
|
four physical
|
|
|
Memory controller
|
Dual-channel DDR3
|
|
|
Cache L1;L2;L3
|
32KB + 32KB (each core);256KB (each core);6MB
shared
|
|
|
Packaging
|
LGA1155
|
|
|
Thermal Design Power (TDP)
|
77W
|
|
|
Features
|
SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM63T,
EIST, ExecuteDisable Bit, VT-x, AES-NI, TurboBoost 2.0, AVX
|
|
|
Score
|
|
Speed
|
8/10
|
|
Features
|
8/10
|
|
Value
|
9/10
|
|
Overall
|
8/10
|
Overclock settings
|
|
Default frequency
|
Overclocked frequency
|
Other adjusted frequencies
|
Voltages used
|
|
Intel Core i5-3770K
|
3.5GHz (35 x 100MHz)
|
4.8GHz (48 x 100MHz)
|
RAM: 1.6GHz
|
CPU: 1.3
|
|
Intel Core i5-3570K
|
3.4GHz (34 x 100MHz)
|
5GHz (50 x 100MHz)
|
RAM: 1.6GHz
|
CPU: 1.4V
|
|
Intel Core i7-3960X Extreme Edition
|
3.3GHz (33 x 100MHz)
|
4.7GHz (38 x 123.75 MHz)
|
CPU strap: 125MHz
RAM: 1.98GHz
|
CPU : 1.4V
RAM : 1.65V
|
|
Intel Core i7-2600K
|
3.4Ghz (34x 100MHz)
|
5GHz (50 x 100MHz)
|
RAM : 1.6GHz
|
CPU : 1.38125V
CPU PPL : 1.9V
VCCSA : 1.1V
VCCIO : 1.106V
|
|
Intel Core i7-2500K
|
3.3GHz (33 x 100MHz)
|
5GHz (50 x 100MHz)
|
RAM : 1.6GHz
|
CPU : 1.38125V
CPU PPL : 1.9V
VCCSA : 1.1V
VVCCIO : 1.106V
|
|
AMD FX-8150
|
3.7GHz (18.5 x 200MHz)
|
4.818GHz (23.5 x 205MHz)
|
RAM : 1.61GHz
|
CPU : 1.45V
CPU/NB : 1.2V
NB : 1.2V
NB HT : 1.25V
RAM : 1.65V
|
Results
Intel Core i7-3770K
|
Gimp image editing (Stock speed/overclocked)
|
|
Core i7-3770K
|
1,916/2,308
|
|
Core i5-3570K
|
1,862/2,392
|
|
Core i7-3960X EE
|
1,805/2,127
|
|
Core i5-2500K
|
1,715/2,228
|
|
AMD FX-8150
|
887/1,077
|
|
Peak total system power draw (Stock speed/overclocked – lower is
better)
|
|
Idle
|
|
Core i7-3770K
|
99W/115W
|
|
Core i5-3570K
|
97W/119W
|
|
Core i7-3960X EE
|
179W/210W
|
|
Core i7-2600K
|
118W/136W
|
|
Core i5-2500K
|
114W/131W
|
|
AMD FX-8150
|
110W/126W
|
|
Load
|
|
Core i7-3770K
|
166W/244W
|
|
Core i5-3570K
|
161W/267W
|
|
Core i7-3960X EE
|
289W/538W
|
|
Core i7-2600K
|
180W/313W
|
|
Core i5-2500K
|
162W/311W
|
|
AMD FX-8150
|
244W/586W
|
Core i5-3570K
|
Handbrake H.264 video encoding (Stock speed/overclocked)
|
|
Core i7-3770K
|
3,461/4,229
|
|
Core i5-3570K
|
3,160/4,245
|
|
Core i7-3960X EE
|
3,985/4,787
|
|
Core i7-2600K
|
3,211/4,208
|
|
Core i5-2500K
|
2,997/3,903
|
|
AMD FX-8150
|
2,520/3,063
|
|
Multitasking (Stock speed/overclocked)
|
|
Core i7 3770K
|
1,767/1,908
|
|
Core i5 3570K
|
1,721/1,915
|
|
Core i7 3960X EE
|
1,645/1,984
|
|
Core i7 2600K
|
1,727/1,940
|
|
Core i5 2500K
|
1,637/1,854
|
|
AMD FX 8150
|
1,283/1,439
|
Core i7 3960X EE
|
Overall(Stock speed/overclocked)
|
|
Core i7-3770K
|
2,403/2,835
|
|
Core i5-3570K
|
2,248/2,851
|
|
Core i7-3960X EE
|
2,478/2,966
|
|
Core i7-2600K
|
2,217/2,791
|
|
Core i5-2500K
|
2,116/2,662
|
|
AMD FX-8150
|
1,563/1,860
|
Core i7-2600K
|
Wprime 2.05 (/Overclocked/Stock speed)
|
|
Core i7-3770K
|
6.260/6.927
|
|
Core i5-3570K
|
7.754/9.783
|
|
Core i7-3960X EE
|
4.134/4.932
|
|
Core i7-2600K
|
6.130/7.303
|
|
Core i5-2500K
|
7.459/9.985
|
|
AMD FX-8150
|
9.484/9.484
|
|
|
|
|
Cinebench R11.5 (Stock speed/overclocked)
|
|
Core i7-3770K
|
7.91/9.93
|
|
Core i5-3570K
|
6.32/8.22
|
|
Core i7-3960X EE
|
11.29/13.61
|
|
Core i7-2600K
|
7.49/9.78
|
|
Core i5-2500K
|
5.93/7.71
|
|
AMD FX-8150
|
7.95/7.95
|
Core i5-2500K
|
ARMA II: operation arrowhead (Stock speed min/stock speed
avg/overclocked min/overclocked avg)
|
|
Core i7-3770K
|
100fps/113fps/106fps/122fps
|
|
Core i5-3570K
|
92fps/104fps/106fps/123fps
|
|
Core i7-3960X EE
|
96fps/115fps/107fps/125fps
|
|
Core i7-2600K
|
92fps/107fps/108fps/122fps
|
|
Core i5-2500K
|
86fps/100fps/106fps/119fps
|
|
AMD FX-8150
|
61fps/69fps/70fps/82fps
|
AMD FX-8150
|
Total war: shogun2 CPU test (Stock speed min/stock speed
avg/overclocked min/overclocked avg)
|
|
Core i7-3770K
|
29fps/35fps/33fps/40fps
|
|
Core i5-3570K
|
28fps/34fps/36fps/43fps
|
|
Core i7-3960X EE
|
23fps/30fps/30fps/38fps
|
|
Core i7-2600K
|
18fps/26fps/25fps/33fps
|
|
Core i5-2500K
|
18fps/26fps/26fps/34fps
|
|
AMD FX-8150
|
would not run/would not run
|
|
|
|
|
