Intel Xeon E5-620 vs Intel Xeon E5-649

Compare Intel Xeon 4 core CPU vs Intel Xeon 6 core processor, specs and benchmark score. Which is the better CPU for gaming?

Benchmark Score
Other Benchmarks
Specifications
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Benchmark Score

Overall Score

A combined score of all workloads

1884 points

1937 points

2% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

2639 points

3123 points

18% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

1648 points

5% slightly better multitasking score

1567 points

Heavy Workload Score

Performance in workloads using up to 16 cores

1596 points

6% slightly better heavy workload score

1504 points

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

25.76 points

55.00 points

113% significantly higher Blender score

Geekbench 6 (multi) score

Multi threaded benchmark

1482 points

2109 points

42% slightly higher Geekbench 6 (multi) score

Geekbench 6 (single) score

Single threaded benchmark

366 points

415 points

13% slightly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

49% significantly more cores

Threads

Number of logical processing units

33% slightly more threads

Clock Speed

Base frequency at which the chip operates

2.53 GHz

0.24% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

2.66 GHz

2.93 GHz

10% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

80 W

Identical

80 W

Memory Channels

Lanes for simultaneous memory access

Identical

Supported Memory

Maximum amount of RAM supported by this CPU

288 GiB

Identical

288 GiB

L2 Cache

Secondary embedded memory, slower than L1 cache

0.25 MiB

1.5 MiB

499% significantly more L2 cache

L3 Cache

General memory pool for all cores

0.01 MiB

12 MiB

102300% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

761st of 1,114

744th of 1,114

Family

The product line

Xeon

Release date

The official date of release of this chip

2010 February

2011 February

Memory Type

The type of memory used by this chip

DDR3-1066

Supports ECC memory

Does this CPU support error correcting memory

Yes

Xeon E5-620 vs Xeon E5-649 comparison

According to the hardwareDB Benchmark tool, the Xeon E5-649 is faster than the Xeon E5-620. Furthermore, our gaming benchmark shows that it also outperforms the Xeon E5-620 in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Xeon E5-649 has significantly more cores with 6 cores compared to the Xeon E5-620 that has 4 cores. Despite this, the Xeon E5-620 has more threads than the Xeon E5-649. These CPUs have different clock speeds. Indeed, the Xeon E5-649 has a slightly higher clock speed compared to the Xeon E5-620. Also, the Xeon E5-649 has a slightly higher turbo speed. Both these chips have an identical TDP (Thermal Design Power). This measures the amount of heat they output and can be used to estimate power consumption. The info from our database shows that the Xeon E5-649 has more L2 cache than the Xeon E5-620. The Xeon E5-649 also has significantly more L3 cache.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. Indeed, the Xeon E5-620 has more threads than cores. Each physical core is split into multiple threads.