Intel Xeon E5-2643 V4 Review

High-end server processor released in 2016 with 6 cores and 12 threads. With base clock at 3.4GHz, max speed at 3.7GHz, and a 135W power rating. Xeon E5-2643 V4 is based on the Broadwell-EP 14nm family and part of the Xeon E5 series.
Price 13.6%
Speed 75%
Productivity 72%
Gaming 87%
Category Server
Target high-end
Socket Compatibility LGA2011
Integrated Graphics None
Cooler Included No
Overclock Potential 0 %
Year 2016 Model
Price 1552 USD
Number of Cores 6 Cores
Number of Threads 12 Threads
Core Frequency 3.4 GHz
Boost Frequency 3.7 GHz
Max Stable Overclock 3.7 GHz
Power Consumption 135 W
Manufacturing Process 14 nm
L3 Cache 20 MB
Maximum Supported Memory 1536 GB
Price-Value Score 13.6 %
Speed Score 75 %
Productivity Score 72 %
Gaming Score 87 %
Max 1080p Bottleneck 34.3 %
Max 1440p Bottleneck 17.2 %
Max 4K Bottleneck 8.6 %
Overall Score 38/100

The Xeon E5-2643 V4 is one of Intel's high-end Server processors. It was released in 2016 with 6 cores and 12 threads. With base clock at 3.4GHz, max speed at 3.7GHz, and a 135W power rating. The Xeon E5-2643 V4 is based on the Broadwell-EP 14nm family and is part of the Xeon E5 series.

The Intel Xeon E5-2643 V4 is an absolute behemoth of a processor, as it absolutely should be with its 6 cores, 12 threads and high price tag. If you’re looking for the absolute best processor money can buy on a mainstream processor, then look no further. Whether you’re playing PC games or even doing hardcore video and 3D work, the Intel Xeon E5-2643 V4 can handle them with ease.

That something is the Xeon E5-2643 V4. Intel cranks the TDP dial up to 135W on this 6-core 12-thread chip, making it the high-performance counterpart to the 90W Xeon E5-2640 V4, which is basically the same 14nm chip built with the Broadwell-EP microarchitecture, but with a lower TDP rating. That chip came away from our first look at the Broadwell-EP series with an Editor's Choice award, going toe-to-toe with AMD's Ryzen Threadripper 1900X, so it's fair to say we have high hopes for the higher-performance model. Intel still hasn't sampled the chip to the press, so we bought one at retail to put it under the microscope.

The Xeon E5-2643 V4 slots in beneath the Xeon E5-2650 V4, which comes with 14nm compute die to yield a 12-core 24-thread part. Intel has worked wonders to reduce the impact of this sort of multi-chip arrangement, but it's fair to assume that the Xeon E5-2643 V4s single-compute-die design, paired with a higher TDP rating that facilitates more aggressive boost clocks, could actually rival the Xeon E5-2650 V4 in some applications – games included.

But we've also found that, after simple push-button overclocking, the Xeon E5-2640 V4 offers similar performance to the Xeon E5-2643 V4, even when it is also overclocked. But for $70 less. The Xeon E5-2643 V4 is an impressive chip and offers a better mixture of performance than AMD's Ryzen Threadripper 1920X, no doubt, but in this case, value seekers might opt for its less expensive sibling.

We covered the deep dive details of the Broadwell-EP chip design in our Intel Xeon E5-2650 V4 and Xeon E5-2640 V4 review, so head there for more information on the Xeon E5-2643 V4's architecture, which is identical to the Xeon E5-2640 V4.

As the higher-priced version of the Xeon E5-2640 V4, the Xeon E5-2643 V4 has higher base and Boost frequencies of 3.4 and 3.7 GHz, respectively. That's an increase in base frequency and a bump to boost clocks, but the real advantage should lay in the higher Package Power Tracking (PPT) envelope, which is a measurement of the maximum amount of power delivered to the socket. The Xeon E5-2640 V4's PPT tops out at 90W, while the motherboard can pump up to 142W to the Xeon E5-2643 V4 at peak performance. That opens up much more aggressive boost behavior, on both single and multiple cores, that could widen the performance gap beyond what we see on the spec sheet.

What this all means is that the Intel Xeon E5-2643 V4 is an absolute beast when it comes to multi-threaded workloads, especially at this price point. If you're counting on doing some video editing or compiling one hell of an Excel spreadsheet, you're going to see firsthand a performance boost with the Xeon E5-2643 V4.

If you're mostly playing games on your PC, you will be happy buying either processor. Both proved to be solid options and are evenly matched with a slight advantage to the AMD chip if you don't tune up the Ryzen Threadripper processor. The base performance we showed for the Xeon E5-2643 V4 can be achieved with $90 memory, while the Ryzen Threadripper 1900X will require $110 - $120 memory in order to enable the frame rates shown here. It’s not a big cost difference and right now with anything less than an RTX 2070 or Vega 64 you’ll more than likely become GPU limited.

Today we’ll be taking a closer look at the Intel Xeon E5-2643 V4 6-core desktop processor that was released in Jun 2016. Intel offers the Xeon E5-2643 V4 without integrated graphics. It runs $1552 shipped and is ideal for those that plan on using it a system with a dedicated graphics card.

The gaming tests with an NVIDIA GeForce RTX 2080 Ti installed in the test system showed the Intel Xeon E5-2643 V4 was more capable than many might have expected. The basic high-end processor from Intel that can be picked up for $1552 was able to out perform the Ryzen Threadripper 1920X that runs $799 shipped in the three games we tested on. We know that you can’t test on just three games and declare something the overall victor, but it just goes to show that 6-core processors can still manage to get by today. Being able to play current game titles and stream to Twitch on the Xeon E5-2643 V4 was something we give playable results, but we were pleasantly surprised. As games become more threaded the ‘value’ in a 6-core processor continues to go down, but you can still get by with something like the Xeon E5-2643 V4 in a pinch.

That said, Intel still lags behind in frequency when the Ryzen Threadripper 1920X operates at 3.5GHz at any given moment and 4GHz when push comes to shove.

Now the biggest question is can Intel’s Xeon E5 processor play games? The answer is simply yes as it got a respectable gaming score of 87% in our benchmarks.

Regardless of those external factors, the Xeon E5-2643 V4 proves it has the chops to be your main gaming system and a just as effective media creation platform – two things that are becoming intrinsically connected in this age of live-streaming, eSports and uploading gameplay videos.

That said, to squeeze out all the potential of this surprisingly potent high-end chip, you’ll want (and need) to splurge on an enthusiast-grade C602J, C606, X79 motherboard.

Fresh from a successful roll-out of mainstream Xeon E5 CPUs, Intel's attack on AMD now extends down into the high-end with its Xeon E5-2643 V4 processors, which the company is making available as of Jun 2016.

Which GPU to Pick for Intel Xeon E5-2643 V4

Below is a comparison of all graphics cards average FPS performance (using an average of 80+ games at ultra quality settings), combined with the Intel Xeon E5-2643 V4.

GPU Price Cost/Frame Avg 1080p Avg 1440p Avg 4K
NVIDIA TITAN RTX 24GB $2,499 $20.2 124 FPS
119 FPS
78.9 FPS
NVIDIA GeForce RTX 2080 Ti 11GB $1,299 $10.8 120.7 FPS
115.9 FPS
76.8 FPS
NVIDIA GeForce RTX 2080 SUPER 8GB $699 $6.4 109.5 FPS
104.1 FPS
68.7 FPS
NVIDIA TITAN V 12GB $2,999 $28.6 105 FPS
100.8 FPS
68.1 FPS
NVIDIA GeForce RTX 2080 8GB $699 $6.8 103.5 FPS
97.4 FPS
63.7 FPS
NVIDIA GeForce GTX 1080 Ti 11GB $759 $7.8 97 FPS
92.9 FPS
61.2 FPS
NVIDIA GeForce RTX 2070 SUPER 8GB $499 $5.2 96.4 FPS
89.7 FPS
59 FPS
NVIDIA TITAN Xp 12GB $1,199 $12.6 95.1 FPS
89.7 FPS
60.4 FPS
AMD Radeon VII 16GB $699 $7.4 95.1 FPS
89.1 FPS
57.7 FPS
AMD Radeon RX 5700 XT 8GB $399 $4.3 92.6 FPS
86.7 FPS
56.1 FPS
NVIDIA GeForce RTX 2070 8GB $499 $5.5 91.4 FPS
83.8 FPS
55.9 FPS
NVIDIA GeForce RTX 2060 SUPER 8GB $400 $4.6 86.5 FPS
78 FPS
51.1 FPS
AMD Radeon RX 5700 8GB $349 $4.1 84.9 FPS
79.5 FPS
51.4 FPS
NVIDIA GeForce GTX 1080 8GB $499 $6.1 82.4 FPS
76 FPS
49.3 FPS
NVIDIA GeForce RTX 2060 6GB $350 $4.3 81.4 FPS
71.8 FPS
46.1 FPS
AMD Radeon RX 5600 XT 6GB $279 $3.5 80.1 FPS
74.3 FPS
47.9 FPS
AMD Radeon R9 295X2 4GB $1,499 $19.4 77.2 FPS
70.2 FPS
48.4 FPS
AMD Radeon RX Vega 64 8GB $499 $6.5 77 FPS
72.1 FPS
46.5 FPS
NVIDIA GeForce GTX 1070 Ti 8GB $409 $5.4 76.4 FPS
70.4 FPS
45.5 FPS
NVIDIA GeForce GTX TITAN X 12GB $999 $13.5 74.2 FPS
67.6 FPS
43.8 FPS
NVIDIA GeForce GTX 1660 Ti 6GB $279 $3.8 72.6 FPS
67 FPS
43.3 FPS
AMD Radeon RX Vega 56 8GB $399 $5.5 72.2 FPS
67.4 FPS
43.6 FPS
NVIDIA GeForce GTX 1070 8GB $399 $5.7 70.3 FPS
64.2 FPS
41.2 FPS
NVIDIA GeForce GTX 1660 SUPER 6GB $229 $3.3 68.5 FPS
63.2 FPS
40.9 FPS
NVIDIA GeForce GTX 980 Ti 6GB $649 $10 64.6 FPS
59.2 FPS
38.3 FPS
NVIDIA GeForce GTX 1660 6GB $220 $3.4 64.5 FPS
59.4 FPS
38.4 FPS
AMD Radeon RX 590 8GB $279 $4.6 61.2 FPS
54.7 FPS
34.6 FPS
AMD Radeon R9 FURY X 4GB $649 $11.1 58.7 FPS
56.3 FPS
37.4 FPS
NVIDIA GeForce GTX 1650 SUPER 4GB $160 $2.9 56.1 FPS
51.6 FPS
33.3 FPS
AMD Radeon RX 5500 XT 8GB 8GB $199 $3.6 55.6 FPS
49.8 FPS
31.4 FPS
NVIDIA GeForce GTX 980 4GB $549 $9.9 55.4 FPS
50.2 FPS
32.7 FPS
AMD Radeon RX 580 8GB $229 $4.2 54.2 FPS
48.5 FPS
30.5 FPS
AMD Radeon R9 Nano 4GB $649 $12.2 53.4 FPS
50.3 FPS
33.2 FPS
NVIDIA GeForce GTX TITAN BLACK 6GB $999 $19.3 51.8 FPS
46.6 FPS
31.6 FPS
AMD Radeon R9 FURY 4GB $549 $10.9 50.4 FPS
47.4 FPS
30.9 FPS
NVIDIA GeForce GTX 1060 6GB 6GB $254 $5 50.3 FPS
45.4 FPS
29.3 FPS
AMD Radeon RX 5500 XT 4GB 4GB $169 $3.4 49.9 FPS
44.7 FPS
28.1 FPS
AMD Radeon R9 390X 8GB $429 $8.8 48.5 FPS
45.4 FPS
29.8 FPS
NVIDIA GeForce GTX 1060 3GB 3GB $170 $3.6 47.7 FPS
43.1 FPS
27.9 FPS
NVIDIA GeForce GTX 970 4GB $329 $7 46.9 FPS
42 FPS
28.2 FPS
AMD Radeon RX 480 8GB $400 $8.8 45.6 FPS
42.3 FPS
28 FPS
AMD Radeon R9 390 8GB $329 $7.3 45.3 FPS
41.5 FPS
25.6 FPS
AMD Radeon RX 570 4GB $169 $3.8 44.7 FPS
40.9 FPS
25.9 FPS
NVIDIA GeForce GTX 1650 4GB $149 $3.5 42.8 FPS
39.1 FPS
25.2 FPS
AMD Radeon RX 470 4GB $179 $4.5 39.9 FPS
36.7 FPS
23.7 FPS
AMD Radeon R9 380X 4GB $229 $6.8 33.6 FPS
30.5 FPS
20.1 FPS
AMD Radeon R9 285 2GB $249 $8.3 30.1 FPS
27.5 FPS
17.1 FPS
AMD Radeon R9 380 2GB $199 $6.7 29.9 FPS
27.2 FPS
17.1 FPS
NVIDIA GeForce GTX 1050 Ti 4GB $169 $5.7 29.5 FPS
27 FPS
17.4 FPS
AMD Radeon R9 280 3GB $279 $9.6 29.2 FPS
26.9 FPS
16.4 FPS
NVIDIA GeForce GTX 960 2GB $199 $6.9 28.8 FPS
26.1 FPS
16.7 FPS
NVIDIA GeForce GTX 1050 3GB $169 $6.7 25.1 FPS
22.7 FPS
14.4 FPS
AMD Radeon RX 560 4GB $99 $4.3 23.2 FPS
20.8 FPS
13.2 FPS
NVIDIA GeForce GTX 950 2GB $159 $7 22.8 FPS
20.3 FPS
13.4 FPS
AMD Radeon R7 370 2GB $149 $6.7 22.3 FPS
19.1 FPS
12.7 FPS
AMD Radeon R7 265 2GB $149 $6.7 22.2 FPS
18.5 FPS
12.3 FPS
AMD Radeon RX 460 4GB $140 $6.8 20.5 FPS
18.4 FPS
11.8 FPS
NVIDIA GeForce GTX 750 Ti 2GB $149 $7.5 19.8 FPS
15.8 FPS
10.6 FPS
AMD Radeon RX 550 2GB $79 $4.9 16.2 FPS
14.6 FPS
9.2 FPS
NVIDIA GeForce GT 1030 2GB $79 $5.1 15.5 FPS
13.9 FPS
8.5 FPS
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