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Intel Core i5-1035G1

Intel i5-1035G1

The Intel Core i5-1035G1 is a low-power, Ice Lake family processor (SoC) featuring 4 cores, 8 threads, 6 MB of L3 cache and the UHD G1 (32 EUs) iGPU. It saw the light of day in H2 2019. The chip is designed for use in highly portable laptops; its CPU cores run at 1.0 GHz to 3.6 GHz, with only 3.2 GHz achievable if all the cores are loaded.

Unlike the costlier Core i5-1035G4, the 1035G1 has the 32 EU UHD Graphics G1 iGPU at its disposal as opposed to the more powerful 48 EU Iris Plus G4; CPU cores run at a slightly lower clock rate in the case of the 1035G1, too.

Architecture & Features

Ice Lake family chips are powered by Sunny Cove CPU cores.The latter aim to do what Palm Cove cores (that we never really got a chance to get a taste of) were expected to do, delivering a double-digit IPC uplift over the venerable Skylake architecture thanks to a range of small improvements across the board including scheduler improvements, larger caches and buffers, and support for new instruction sets.

Thunderbolt 3 support is built right into the Core i5 (meaning the latter has several PCIe 3 lanes exclusive to Thunderbolt devices, reducing the number of additional components required for Thunderbolt to work) and so is Intel CNVi Wi-Fi 6 support (making it easier for Intel to sell its proprietary WLAN cards to laptop makers). The Core i5-1035G1 also has the DL Boost and GNA features for applications centered around machine learning.

The 4 GT/s bus is indicative of a consumer-grade chip, since CPUs for gaming laptops and portable workstations usually employ the faster 8 GT/s bus. RAM support is nothing to sneeze at, at up to DDR4-3200 or LPDDR4-3733. NVMe SSDs are supported, with data transfer rates limited to 3.9 GB/s (this is what four PCIe 3 lanes are good for). SATA drives and even eMMC chips are also natively supported here.

This is not a user-replaceable CPU, as it gets permanently soldered to the motherboard (BGA1526 socket interface).

OS support is limited to 64-bit Windows 10 and Windows 11, as well as many Linux distros.

Performance

The Core i5-1035G1 is a lower mid-range CPU, as of mid 2022. It is good for more than just the basics while being no match for true high-performers such as the mighty Core i7-10850H.

According to our in-house testing, the Core i5 delivers multi-thread performance that is similar to what the Core i7-10610U, the Core i7-1160G7 and the Ryzen 5 PRO 3500U have to offer. Your mileage may vary depending on how competent the cooling solution of your system is and how high the CPU power limits are.

The Lenovo IdeaPad 5 15IIL05 is among the fastest laptops featuring the 1035G1 that we have tested.

Graphics

The UHD Graphics G1 is based on Intel's Gen 11 architecture. The UHD Graphics runs at up to 1,050 MHz and has 32 EUs for fairly unimpressive performance; the Iris Plus G4 has 48 EUs while the Iris Plus G7 has 64 EUs, for reference. This iGPU will drive up to 3 monitors simultaneously and is DX12-compatible. The resolution options are capped at 5120 by 3200. There is no hardware AV1 codec support here, meaning such a video will be SW-decoded with rather low energy efficiency. The usual HEVC, AVC and VP9 codecs are supported, thankfully.

The UHD Graphics is significantly faster than the UHD Graphics 620, yet it's still not as good as a proper discrete graphics card would be. It will let one play certain games, F1 2020 included, provided one is content with the 720p resolution and low quality settings.

Power consumption

The Core i5-1035G1 has a default TDP (also known as the long-term Power Limit) of 15 W. Laptop makers are free to increase that value somewhat, with 25 W being the upper limit, or reduce it (values as low as 13 W are possible). Clock speeds and performance will change accordingly as a result. Either way, an active cooling solution will be required to dissipate the heat.

The chip is manufactured on Intel's second-generation 10 nm process (not "10 nm SuperFin" or "Intel 7") for average, as of late 2022, energy efficiency.

SeriesIntel Ice Lake
CodenameIce Lake-U

Series: Ice Lake Ice Lake-U

Intel Core i5-1038NG7 compare2 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i7-1065G7 compare1.3 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i5-1035G7 compare1.2 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i5-1035G4 compare1.1 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i5-1035G1 « 1 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i3-1005G1 compare1.2 - 3.4 GHz2 / 4 cores4 MB L3
Clock Rate1000 - 3600 MHz
Level 1 Cache192 KB
Level 2 Cache2 MB
Level 3 Cache6 MB
Number of Cores / Threads4 / 8
Power Consumption (TDP = Thermal Design Power)15 Watt
Manufacturing Technology10 nm
Max. Temperature100 °C
SocketBGA1526
FeaturesDDR4-3200/LPDDR4-3733 RAM, PCIe 3, 4 GT/s bus, DL Boost, GNA, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, VMX, SMEP, SMAP, EIST, TM1, TM2, Hyper-Threading, Turbo, SST, AES-NI, RDRAND, RDSEED, SHA, SGX
GPUIntel UHD Graphics G1 (Ice Lake 32 EU) (300 - 1050 MHz)
64 Bit64 Bit support
Architecturex86
Announcement Date05/29/2019
Product Link (external)ark.intel.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
28.6 pt (40%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 518     avg: 613     median: 606 (4%)     max: 803 Points
04080120160200240280320360400440480520560600640680720760Tooltip
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 144     avg: 164.6     median: 167.5 (50%)     max: 171 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 17213     avg: 21299     median: 21298.5 (15%)     max: 25384 points
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 13236     avg: 15975     median: 15156 (9%)     max: 20378 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 3739     avg: 4089     median: 4159 (50%)     max: 4318 MIPS
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 3.32     avg: 4.4     median: 4.2 (7%)     max: 6.44 fps
0123456789101112Tooltip
Blender - Blender 2.79 BMW27 CPU *
min: 607     avg: 844     median: 863 (6%)     max: 1002 Seconds
3DMark 11 - 3DM11 Performance Physics
min: 5453     avg: 7214     median: 6880 (19%)     max: 8817 Points
3DMark - 3DMark Ice Storm Extreme Physics
min: 50941     avg: 51362     median: 51361.5 (42%)     max: 51782 Points
3DMark - 3DMark Ice Storm Unlimited Physics
min: 50897     avg: 52961     median: 53092 (45%)     max: 54764 Points
3DMark - 3DMark Cloud Gate Physics
min: 5430     avg: 6846     median: 6878 (17%)     max: 8047 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 8019     avg: 9970     median: 10188 (18%)     max: 11678 Points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 834     avg: 934     median: 913 (1%)     max: 1043 ms
WebXPRT 3 - WebXPRT 3 Score
min: 173     avg: 183.2     median: 178 (37%)     max: 195 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 25.5     avg: 29.6     median: 29.6 (5%)     max: 33.7 Watt
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 25.4     avg: 28.6     median: 28.6 (5%)     max: 31.7 Watt
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
min: 22.1     avg: 23.7     median: 23.7 (18%)     max: 25.3 Points per Watt
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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