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Intel Celeron N2940 vs Intel Celeron N2805

Intel Celeron N2940

► remove from comparison Intel N2940

The Intel Celeron N2940 is a power efficient quad-core SoC for entry-level notebooks. It is clocked at 1.83 - 2.25 GHz and part of the Bay Trail-M platform. Thanks to the specially optimized 22 nanometer low-power process (P1271) with tri-gate transistors, performance and energy efficiency have been significantly improved compared to previous Intel Atom CPUs. The N2940 supports Quick Sync as well as Wireless Display.

Architecture

The processor cores are based on the new Silvermont architecture, which is an out-of-order design for the first time. The increased utilization of the pipeline and many other improvements (optimized branch prediction, increased buffers, enhanced decoders) have increased the performance per clock by about 50 percent. At the same time, however, the Hyper-Threading feature of the previous generation has been removed. Other major changes are the support for new instruction set extensions such as SSE 4.1 and 4.2 as well as AES-NI (depending on the model).

Performance

Thanks to the improved performance per clock and the 4 cores, the Celeron N2940 is significantly faster than previous Intel Atoms, e.g. the N2800. Depending on the benchmark, the N2940 is similar to or slightly faster than the AMD Kabini APU A4-5000. For most everyday tasks such as Internet or Office the performance is adequate, but not for complex software or modern games.

Graphics

The HD Graphics (Bay Trail) is based on the Intel Gen7 architecture, which supports DirectX 11 and is also found in the Ivy Bridge series (e.g. HD Graphics 4000). With only 4 EUs (Execution Units) and a relatively low clock speed of 313 - 854 MHz, the GPU is even slower than the HD Graphics (Ivy Bridge). Therefore, only older and less demanding games will run fluently.

Power Consumption

The entire SoC is rated at a TDP of 7.5 watts (4.5 W SDP - Scenario Design Power). Thus, the chip can be used in compact (and sometimes even passively cooled) subnotebooks and tablets.

Intel Celeron N2805

► remove from comparison Intel N2805

The Intel Celeron N2805 is a power efficient dual-core SoC for entry-level notebooks. It is clocked at up to 1.46 GHz and part of the Bay Trail-M platform. Thanks to the specially optimized 22 nanometer low-power process (P1271) with tri-gate transistors, performance and energy efficiency have been significantly improved compared to previous Intel Atom CPUs.

Architecture

The processor cores are based on the new Silvermont architecture, which is an out-of-order design for the first time. The increased utilization of the pipeline and many other improvements (optimized branch prediction, increased buffers, enhanced decoders) have increased the performance per clock by about 50 percent. At the same time, however, the Hyper-Threading feature of the previous generation has been removed. Other major changes are the support for new instruction set extensions such as SSE 4.1 and 4.2 as well as AES-NI (depending on the model).

Performance

Thanks to the improved performance per clock, the Celeron N2805 is faster than previous Intel Atoms, e.g. the N2600. According to our benchmarks, the N2805 competes with AMD APUs like the AMD E1-2100. For very simple everyday tasks such as Internet or Office the performance is adequate, but not for more complex software or modern games.

Graphics

The graphics unit of Bay Trail is based on the Intel Gen7 architecture, which supports DirectX 11 and is also found in the Ivy Bridge series (e.g. HD Graphics 4000). With only 4 EUs (Execution Units) and a relatively low clock speed of up to 667 MHz, the GPU is even slower than the HD Graphics (Ivy Bridge). Therefore, only very old and less demanding games will run fluently.

Power Consumption

The entire SoC is rated at a TDP of 4.3 watts (2.5 W SDP). Thus, the chip can be used in compact subnotebooks.

ModelIntel Celeron N2940Intel Celeron N2805
SeriesIntel CeleronIntel Celeron
CodenameBay Trail-MBay Trail-M
Series: Celeron Bay Trail-M
» Intel Celeron N29401.83 - 2.25 GHz4 / 4
Intel Celeron N2930 compare1.83 - 2.16 GHz4 / 4
Intel Celeron N2920 compare1.86 - 2 GHz4 / 4
Intel Celeron N2840 compare2.16 - 2.58 GHz2 / 2
Intel Celeron N2910 compare1.6 GHz4 / 4
Intel Celeron N2830 compare2.16 - 2.41 GHz2 / 2
Intel Celeron N2820 compare2.17 - 2.39 GHz2 / 2
Intel Celeron N2815 compare1.86 - 2.13 GHz2 / 2
Intel Celeron N2810 compare2 GHz2 / 2
Intel Celeron N2808 compare1.58 - 2.25 GHz2 / 2
Intel Celeron N2807 compare1.58 - 2.16 GHz2 / 2
Intel Celeron N2806 compare1.58 - 2 GHz2 / 2
Intel Celeron N28051.46 GHz2 / 2
Intel Celeron N29401.83 - 2.25 GHz4 / 4
Intel Celeron N2930 compare1.83 - 2.16 GHz4 / 4
Intel Celeron N2920 compare1.86 - 2 GHz4 / 4
Intel Celeron N2840 compare2.16 - 2.58 GHz2 / 2
Intel Celeron N2910 compare1.6 GHz4 / 4
Intel Celeron N2830 compare2.16 - 2.41 GHz2 / 2
Intel Celeron N2820 compare2.17 - 2.39 GHz2 / 2
Intel Celeron N2815 compare1.86 - 2.13 GHz2 / 2
Intel Celeron N2810 compare2 GHz2 / 2
Intel Celeron N2808 compare1.58 - 2.25 GHz2 / 2
Intel Celeron N2807 compare1.58 - 2.16 GHz2 / 2
Intel Celeron N2806 compare1.58 - 2 GHz2 / 2
» Intel Celeron N28051.46 GHz2 / 2
Clock1830 - 2250 MHz1460 MHz
L1 Cache224 KB112 KB
L2 Cache2 MB1 MB
Cores / Threads4 / 42 / 2
TDP7.5 Watt4.3 Watt
Technology22 nm22 nm
max. Temp.105 °C80 °C
SocketFCBGA1170
FeaturesHD Graphics (Bay Trail, 313 - 854 MHz), Quick Sync, Wireless Display, SpeedstepIntel HD Graphics (Bay Trail, 313 - 667 MHz), Single-Channel DDR3L-1066
iGPUIntel HD Graphics (Bay Trail) (313 - 854 MHz)Intel HD Graphics (Bay Trail) (313 - 667 MHz)
Architecturex86x86
Announced
ManufacturerIntel Celeron N2940Intel Celeron N2805
$107 U.S.

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 89     avg: 110.5     median: 110.5 (1%)     max: 132 Points
44 Points (0%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 35     avg: 35.5     median: 35.5 (12%)     max: 36 Points
24 Points (8%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 N2940 +
min: 1.57     avg: 1.6     median: 1.6 (3%)     max: 1.62 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
100%
1 N2940 +
0.4 Points (12%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
1150 Points (10%)
min: 739     avg: 756     median: 756 (7%)     max: 773 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
3958 Points (5%)
min: 1393     avg: 1430     median: 1430 (2%)     max: 1467 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 N2940 +
5784 Points (5%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 N2940 +
1663 Points (10%)
wPrime 2.10 - wPrime 2.0 1024m *
867 s (10%)
2634 s (31%)
wPrime 2.10 - wPrime 2.0 32m *
29.2 s (6%)
85.2 s (17%)
WinRAR - WinRAR 4.0
100%
1 N2805 +
887 Points (5%)
X264 HD Benchmark 4.0 - x264 Pass 2
9.4 fps (4%)
3.1 fps (1%)
X264 HD Benchmark 4.0 - x264 Pass 1
46.9 fps (13%)
17.4 fps (5%)
TrueCrypt - TrueCrypt Serpent
0.1 GB/s (4%)
0 GB/s (1%)
TrueCrypt - TrueCrypt Twofish
0.2 GB/s (4%)
0.1 GB/s (1%)
TrueCrypt - TrueCrypt AES
0.2 GB/s (1%)
0.1 GB/s (0%)
3DMark 06 - CPU - 3DMark 06 - CPU
2191 Points (5%)
885 Points (2%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
27.5 s (6%)
55.7 s (12%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
61.2 s (3%)
121.2 s (5%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
1566 s (7%)
2580 s (11%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 N2805 +
1534 Points (2%)
3DMark 11 - 3DM11 Performance Physics
1635 Points (6%)
min: 568     avg: 638     median: 637.5 (2%)     max: 707 Points
3DMark - 3DMark Ice Storm Physics
17767 Points (11%)
min: 6672     avg: 6723     median: 6723 (4%)     max: 6774 Points
3DMark - 3DMark Cloud Gate Physics
1257 Points (3%)
min: 512     avg: 521     median: 521 (1%)     max: 530 Points
3DMark - 3DMark Fire Strike Standard Physics
100%
1 N2805 +
634 Points (2%)
Geekbench 2 - 32 Bit - Geekbench Stream
100%
1 N2805 +
1947 Points (16%)
Geekbench 2 - 32 Bit - Geekbench Memory
100%
1 N2805 +
1712 Points (16%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
100%
1 N2805 +
1233 Points (2%)
Geekbench 2 - 32 Bit - Geekbench Integer
100%
1 N2805 +
1397 Points (3%)
Geekbench 2 - 32 Bit - Geekbench Total Score
100%
1 N2805 +
1457 Points (4%)
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
100%
1 N2805 +
1017 Points (2%)
Geekbench 3 - Geekbench 3 32 Bit Single-Core
100%
1 N2805 +
599 Points (12%)

Average Benchmarks Intel Celeron N2940 → 100% n=18

Average Benchmarks Intel Celeron N2805 → 55% n=18

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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Redaktion, 2017-09- 8 (Update: 2017-09-11)