| | | |

Pentium 4 HT 515J vs Pentium D 820


Description
Both models 515J and 820 are based on NetBurst architecture.



Using the multithread performance as a reference, the 515J gets a score of 0 k points while the 820 gets 14.1 k points.

Summarizing, the 820 is INF times faster than the 515J. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f41
f44
Core
Prescott
Smithfield
Architecture
Base frecuency
2.933 GHz
2.8 GHz
Socket
LGA 775
LGA 775
Cores/Threads
1/2
2/2
TDP
84 W
130 W
Cache L1 (d+i)
8+8 kB
16+8 kB
Cache L2
1024 kB
2048 kB
Date
2004
May 2005

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
515J
820
Test#1 (Integers)
1522
1459 (-4.15%)
Test#2 (FP)
2714
2598 (-4.27%)
Test#3 (Generic, ZIP)
1321
1264 (-4.30%)
Test#1 (Memory)
759
911 (19.99%)
TOTAL
6316
6232 (-1.33%)

Multithread

515J

820
Test#1 (Integers)
0
2925 (inf%)
Test#2 (FP)
0
5192 (inf%)
Test#3 (Generic, ZIP)
0
2526 (inf%)
Test#1 (Memory)
0
942 (inf%)
TOTAL
0
11585 (inf%)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
515J
820
Test#1 (Integers)
2045
1932 (-5.51%)
Test#2 (FP)
3253
3114 (-4.29%)
Test#3 (Generic, ZIP)
1564
1495 (-4.44%)
Test#1 (Memory)
760
907 (19.36%)
TOTAL
7622
7447 (-2.29%)

Multithread

515J

820
Test#1 (Integers)
0
3921 (inf%)
Test#2 (FP)
0
6227 (inf%)
Test#3 (Generic, ZIP)
0
2989 (inf%)
Test#1 (Memory)
0
937 (inf%)
TOTAL
0
14074 (inf%)

Performance/W
515J
820
Test#1 (Integers)
0 points/W
30 points/W
Test#2 (FP)
0 points/W
48 points/W
Test#3 (Generic, ZIP)
0 points/W
23 points/W
Test#1 (Memory)
0 points/W
7 points/W
TOTAL
0 points/W
108 points/W

Performance/GHz
515J
820
Test#1 (Integers)
697 points/GHz
690 points/GHz
Test#2 (FP)
1109 points/GHz
1112 points/GHz
Test#3 (Generic, ZIP)
533 points/GHz
534 points/GHz
Test#1 (Memory)
259 points/GHz
324 points/GHz
TOTAL
2599 points/GHz
2660 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.7.9