| | | | | | |

FX 8120 vs Xeon E5-2651 v2


Description
The 8120 is based on Bulldozer architecture while the E5-2651 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the 8120 gets a score of 70.8 k points while the E5-2651 v2 gets 426.2 k points.

Summarizing, the E5-2651 v2 is 6 times faster than the 8120. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
600f12
306e4
Core
Zambezi
Ivy Bridge-EP
Architecture
Base frecuency
3.1 GHz
1.8 GHz
Boost frecuency
4 GHz
2.2 GHz
Socket
Socket AM3+
LGA 2011
Cores/Threads
8/8
12/24
TDP
125 W
W
Cache L1 (d+i)
4x64+8x16 kB
12x32+12x32 kB
Cache L2
4x2048 kB
12x256 kB
Cache L3
8192 kB
30720 kB
Date
October 2011
October 2013
Mean monothread perf.
23.5k points
17.75k points
Mean multithread perf.
70.78k points
426.18k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
8120
E5-2651 v2
Test#1 (Integers)
9.31k
6.69k (x0.72)
Test#2 (FP)
6.85k
6.35k (x0.93)
Test#3 (Generic, ZIP)
2.77k
2.54k (x0.92)
Test#1 (Memory)
4.58k
2.17k (x0.47)
TOTAL
23.5k
17.75k (x0.76)

Multithread

8120

E5-2651 v2
Test#1 (Integers)
25.84k
165.17k (x6.39)
Test#2 (FP)
28.49k
176.85k (x6.21)
Test#3 (Generic, ZIP)
13.84k
73.91k (x5.34)
Test#1 (Memory)
2.61k
10.25k (x3.92)
TOTAL
70.78k
426.18k (x6.02)

Performance/W
8120
E5-2651 v2
Test#1 (Integers)
207 points/W