Raspberry Pi 4 vs Libre Computer Alta

Benchmarks, specifications, and real-world performance data

Tested by Bret Weber Last updated 10 October 2026

Raspberry Pi 4vsLibre Computer Alta

Fastest

Libre Computer Alta

1,246 GB6 multi-core

Best value

Libre Computer Alta

10.0 GB6 pts/$ at $125

Most efficient

Raspberry Pi 4

5.2W under load

Comparison Summary

This comparison puts the Raspberry Pi 4 and the Libre Computer Alta side by side using benchmark results from our own testing of each board. The Libre Computer Alta takes the CPU crown: 1,246 in Geekbench 6 multi-core against the Raspberry Pi 4's 614, a 103% advantage. For budget-focused builds, the Libre Computer Alta wins the value contest at 10.0 multi-core points per dollar at $125.00. If power budget matters, the Raspberry Pi 4 draws the least at 5.2W under load.

Read our individual reviews:

Libre Computer Alta →

Specification	Raspberry Pi 4 2GB RAM	Libre Computer Alta 4GB RAM
Basic Specifications
Price	$71.75 AMZ**OFF	$125 OFF
RAM	2GB	4GB
SoC	Broadcom BCM2711 VideoCore VI	Amlogic A311D Mali-G52 MP4 NPU (5 TOPS)
Architecture	ARM	ARM
CPU Cores	4 cores 4× Cortex-A72 @ 1.5GHz	6 cores 4× Cortex-A73 @ 2.2GHz 2× Cortex-A53 @ 2.0GHz

Connectivity
USB Ports	4× USB ports 2× USB-A 2.0, 2× USB-A 3.0	4× USB ports 4× USB-A 3.0
Display Ports	2× micro-HDMI 2.0	1× HDMI 2.0
Ethernet	1.0Gbps (PoE via HAT)	1.0Gbps (PoE via HAT)
WiFi	802.11ac	N/A
Bluetooth	5.0, BLE	N/A
Storage & Expansion
SATA Ports	None	None
M.2 Slots	N/A	N/A
PCIe Support	N/A	N/A
Power & I/O
Power Requirements	5.1V	5.1V
Power Inputs	GPIO, PoE+ HAT, USB-C	PoE+ HAT, USB-C
GPIO	40-pin RPi compatible	N/A
Features
Real-Time Clock	No	No
Power Button	No	No
Fan Header	No	No
Mainline Linux	Yes	Yes
Armbian Support	Official	Official

Best in category* Affiliate link; qualifying purchases may earn us a commission

Environment	Raspberry Pi 4 2GB RAM	Libre Computer Alta 4GB RAM
Last Tested	7 July 2025	8 October 2025
System Configuration
OS Version	Debian GNU/Linux 12 (bookworm)	Debian GNU/Linux 13 (trixie)
Kernel Version	6.12.34+rpt-rpi-v8	6.12.48+deb13-arm64
CPU Governor	performance	performance
RPi Firmware	5560078dcc8591a00f57b9068d13e5544aeef3aa	N/A
GPU Information
GL Renderer	V3D 4.2.14.0	Mali-G52 (Panfrost)
GL Vendor	Broadcom	Mesa
GL Version	3.1 Mesa 25.0.7-2+rpt4	3.1 Mesa 25.0.7-2
Vulkan Device	V3D 4.2.14.0	N/A
Vulkan Driver Version	104857607	N/A
Hardware Setup
Boot Device	Raspberry Pi 64GB (microSD)	Libre Computer eMMC 16GB (eMMC)

Every figure above comes from hardware run in-house by Bret Weber, on the exact OS build, kernel, firmware and boot device listed here. Boards are tested to a fixed procedure so results stay comparable between them: see our testing methodology for how each benchmark is run.

📖

Detailed Reviews

Full write-ups on bret.dk, using the same benchmark data:

•Libre Computer Alta Review

Raspberry Pi 4 (2GB)

Libre Computer Alta (4GB)

CPU Performance

Processor performance across single and multi-core workloads

Geekbench 6

Higher Scores are Better

Single-Core

Raspberry Pi 4 (2GB)258 33% slower #51 of 72

258 33% slower #51 of 72

Libre Computer Alta (4GB)385 #39 of 72

385 #39 of 72

Multi-Core

Raspberry Pi 4 (2GB)614 2.0× slower #54 of 72

614 2.0× slower #54 of 72

Libre Computer Alta (4GB)1,246 #43 of 72

1,246 #43 of 72

7-Zip Benchmark

Higher Scores are Better

Single-Core Combined

Raspberry Pi 4 (2GB)1,541 MIPS 31% slower #55 of 118

1,541 MIPS 31% slower #55 of 118

Libre Computer Alta (4GB)2,248 MIPS #41 of 118

2,248 MIPS #41 of 118

Multi-Core Combined

Raspberry Pi 4 (2GB)5,192 MIPS 46% slower #58 of 113

5,192 MIPS 46% slower #58 of 113

Libre Computer Alta (4GB)9,536 MIPS #45 of 113

9,536 MIPS #45 of 113

High Performance Linpack

Higher Scores are Better

Performance

Raspberry Pi 4 (2GB)12.57 GFLOPS 42% slower #52 of 80

12.57 GFLOPS 42% slower #52 of 80

Libre Computer Alta (4GB)21.68 GFLOPS #38 of 80

21.68 GFLOPS #38 of 80

Performance/Watt

Raspberry Pi 4 (2GB)1.83 GFLOPS/W 23% slower #56 of 74

1.83 GFLOPS/W 23% slower #56 of 74

Libre Computer Alta (4GB)2.39 GFLOPS/W #28 of 74

2.39 GFLOPS/W #28 of 74

UnixBench

Higher Scores are Better

Single Core

Raspberry Pi 4 (2GB)493 #51 of 118

493 #51 of 118

Libre Computer Alta (4GB)477 3% slower #54 of 118

477 3% slower #54 of 118

Multi Core

Raspberry Pi 4 (2GB)1,553 33% slower #57 of 109

1,553 33% slower #57 of 109

Libre Computer Alta (4GB)2,331 #47 of 109

2,331 #47 of 109

PassMark CPU

Higher Scores are Better

CPU Score

Raspberry Pi 4 (2GB)518 2.8× slower #68 of 95

518 2.8× slower #68 of 95

Libre Computer Alta (4GB)1,434 #44 of 95

1,434 #44 of 95

CPU Mining (cpuminer-multi)

Higher Hashrates are Better

Fastest Thread

Raspberry Pi 4 (2GB)1.88 kH/s 15% slower #56 of 108

1.88 kH/s 15% slower #56 of 108

Libre Computer Alta (4GB)2.22 kH/s #50 of 108

2.22 kH/s #50 of 108

Total

Raspberry Pi 4 (2GB)7.53 kH/s 41% slower #58 of 104

7.53 kH/s 41% slower #58 of 104

Libre Computer Alta (4GB)12.72 kH/s #46 of 104

12.72 kH/s #46 of 104

MAME: Street Fighter II: The World Warrior

Higher Speed is Better

Libre Computer Alta (4GB)Emulation Speed: 504.45%#9 of 22

Only this board has been tested so far, so there is nothing to compare against yet.

Memory Performance

Memory bandwidth and throughput benchmarks

PassMark RAM

Higher Scores are Better

RAM Score

Raspberry Pi 4 (2GB)622 30% slower #54 of 87

622 30% slower #54 of 87

Libre Computer Alta (4GB)883 #42 of 87

883 #42 of 87

TinyMemBench

Higher Bandwidth is Better

Libre Computer Alta (4GB)memcpy: 4,001.1 MB/s#26 of 65memset: 4,818.2 MB/s#44 of 65

Only this board has been tested so far, so there is nothing to compare against yet.

GPU Performance

Graphics rendering with OpenGL and Vulkan, plus raw Vulkan compute throughput

glmark2 (OpenGL)

Higher Scores are Better

1080p

Raspberry Pi 4 (2GB)190 3.8× slower #14 of 25

190 3.8× slower #14 of 25

Libre Computer Alta (4GB)731 #6 of 25

731 #6 of 25

Raspberry Pi 4 (2GB)52 4.2× slower #15 of 19

52 4.2× slower #15 of 19

Libre Computer Alta (4GB)217 #6 of 19

217 #6 of 19

vkmark (Vulkan)

Higher Scores are Better

Raspberry Pi 4 (2GB)1080p: 207#6 of 64K: 58#6 of 6

Only this board has been tested so far, so there is nothing to compare against yet.

SuperTuxKart (Gaming)

Higher FPS is Better

Libre Computer Alta (4GB)1080p Typical: 10 FPS#4 of 101080p Steady: 6 FPS#4 of 104K Typical: 2 FPS#4 of 94K Steady: 1 FPS#4 of 8

Only this board has been tested so far, so there is nothing to compare against yet.

AI & LLM Performance

Large Language Model inference performance

Ollama LLM Benchmark

Higher Scores are Better

Tokens/sec

Raspberry Pi 4 (2GB)3.66 tok/s 2.1× slower #38 of 66

3.66 tok/s 2.1× slower #38 of 66

Libre Computer Alta (4GB)7.78 tok/s #29 of 66

7.78 tok/s #29 of 66

Tokens/Watt

Raspberry Pi 4 (2GB)0.65 tok/W 38% slower #42 of 64

0.65 tok/W 38% slower #42 of 64

Libre Computer Alta (4GB)1.05 tok/W #12 of 64

1.05 tok/W #12 of 64

Tokens/Dollar

Raspberry Pi 4 (2GB)0.05 tok/$ 17% slower #32 of 59

0.05 tok/$ 17% slower #32 of 59

Libre Computer Alta (4GB)0.06 tok/$ #23 of 59

0.06 tok/$ #23 of 59

Storage Performance

Disk I/O throughput measured with FIO

fio Storage Performance - microSD

Higher Speeds are Better • Raspberry Pi 64GB (64GB microSD)

4K Random Read

Raspberry Pi 4 (2GB)16.3 MB/s 14% slower

16.3 MB/s 14% slower

Libre Computer Alta (4GB)19 MB/s

19 MB/s

4K Random Write

Raspberry Pi 4 (2GB)12.6 MB/s 3% slower

12.6 MB/s 3% slower

Libre Computer Alta (4GB)13 MB/s

13 MB/s

fio Storage Performance - eMMC

Higher Speeds are Better • Libre Computer eMMC (16GB eMMC)

Libre Computer Alta (4GB)4K Random Read: 30.6 MB/s4K Random Write: 45.2 MB/s

Only this board has been tested so far, so there is nothing to compare against yet.

Network Performance

Ethernet and WiFi throughput measured with iPerf3

iPerf3 Network Performance

Higher Speeds are Better

Ethernet Up

Raspberry Pi 4 (2GB)942 Mbps

942 Mbps

Libre Computer Alta (4GB)940 Mbps

940 Mbps

Ethernet Down

Raspberry Pi 4 (2GB)941 Mbps

941 Mbps

Libre Computer Alta (4GB)940 Mbps

940 Mbps

Power & Thermal

Power consumption at idle and under various workloads

Power Consumption

Lower is "Better"

Idle Power

Raspberry Pi 4 (2GB)No Data

No Data

Libre Computer Alta (4GB)1.9W #32 of 74

1.9W #32 of 74

Load Power

Raspberry Pi 4 (2GB)5.2W #48 of 105

5.2W #48 of 105

Libre Computer Alta (4GB)5.8W 12% more #54 of 105

5.8W 12% more #54 of 105

Ollama Max

Raspberry Pi 4 (2GB)5.6W #16 of 64

5.6W #16 of 64

Libre Computer Alta (4GB)7.4W 32% more #23 of 64

7.4W 32% more #23 of 64

Linpack Max

Raspberry Pi 4 (2GB)6.9W #22 of 75

6.9W #22 of 75

Libre Computer Alta (4GB)9.1W 32% more #30 of 75

9.1W 32% more #30 of 75

Benchmark	Raspberry Pi 4 2GB RAM	Libre Computer Alta 4GB RAM

Geekbench 6 Single-Core	258	385
Geekbench 6 Multi-Core	614	1246
7-Zip Single-Core Combined	1541 MIPS	2248 MIPS
7-Zip Multi-Core Combined	5192 MIPS	9536 MIPS
7-Zip Single-Core Compression	1462 MIPS	2049 MIPS
7-Zip Multi-Core Compression	4027 MIPS	7507 MIPS
7-Zip Single-Core Decompression	1620 MIPS	2448 MIPS
7-Zip Multi-Core Decompression	6357 MIPS	11565 MIPS
Linpack Performance	12.574 GFLOPS	21.684 GFLOPS
Linpack Performance/Watt	1.83 GFLOPS/W	2.39 GFLOPS/W
UnixBench Single Core	493	477
UnixBench Multi Core	1553	2331
PassMark CPU Score	518	1434
CPU Mining Single Core	1.88 kH/s	2.22 kH/s
CPU Mining Multi Core	7.53 kH/s	12.72 kH/s
MAME: Street Fighter II: The World Warrior	N/A	504.45%

TinyMemBench memcpy	N/A	4001.1 MB/s
TinyMemBench memset	N/A	4818.2 MB/s
PassMark RAM Score	622	883

glmark2 1080p (OpenGL)	190	731
glmark2 4K (OpenGL)	52	217
vkmark 1080p (Vulkan)	207	N/A
vkmark 4K (Vulkan)	58	N/A
SuperTuxKart 1080p Typical FPS	N/A	10
SuperTuxKart 1080p Steady FPS	N/A	6
SuperTuxKart 4K Typical FPS	N/A	2
SuperTuxKart 4K Steady FPS	N/A	1

deepseek-r1:1.5b
Tokens per Second	3.66 tok/s	7.78 tok/s
Tokens per Watt	0.65 tok/W	1.05 tok/W
Tokens per Dollar	0.05 tok/$	0.06 tok/$
Max Power	5.6W	7.4W

Raspberry Pi 64GB (64GB)
Sequential Read 4K	34.0 MB/s (8723 IOPS)	23.5 MB/s (6026 IOPS)
Sequential Read 64K	40.6 MB/s (649 IOPS)	20.8 MB/s (333 IOPS)
Sequential Read 1M	45.2 MB/s (44 IOPS)	43.5 MB/s (42 IOPS)
Sequential Write 4K	10.1 MB/s (2598 IOPS)	10.5 MB/s (2691 IOPS)
Sequential Write 64K	27.4 MB/s (439 IOPS)	30.3 MB/s (485 IOPS)
Sequential Write 1M	38.6 MB/s (38 IOPS)	37.7 MB/s (37 IOPS)
Random Read 4K	16.3 MB/s (4188 IOPS)	19.0 MB/s (4885 IOPS)
Random Read 64K	34.8 MB/s (556 IOPS)	44.8 MB/s (717 IOPS)
Random Read 1M	44.8 MB/s (44 IOPS)	57.6 MB/s (57 IOPS)
Random Write 4K	12.6 MB/s (3226 IOPS)	13.0 MB/s (3329 IOPS)
Random Write 64K	33.2 MB/s (530 IOPS)	34.1 MB/s (546 IOPS)
Random Write 1M	40.3 MB/s (39 IOPS)	36.5 MB/s (36 IOPS)

Libre Computer eMMC (16GB)
Sequential Read 4K	N/A	47.7 MB/s (12236 IOPS)
Sequential Read 64K	N/A	82.3 MB/s (1316 IOPS)
Sequential Read 1M	N/A	159.8 MB/s (159 IOPS)
Sequential Write 4K	N/A	52.8 MB/s (13522 IOPS)
Sequential Write 64K	N/A	53.2 MB/s (850 IOPS)
Sequential Write 1M	N/A	43.0 MB/s (42 IOPS)
Random Read 4K	N/A	30.6 MB/s (7849 IOPS)
Random Read 64K	N/A	130.9 MB/s (2094 IOPS)
Random Read 1M	N/A	160.3 MB/s (159 IOPS)
Random Write 4K	N/A	45.2 MB/s (11587 IOPS)
Random Write 64K	N/A	51.5 MB/s (823 IOPS)
Random Write 1M	N/A	42.6 MB/s (42 IOPS)

Idle Power	N/A	1.9W
Load Power	5.2W	5.8W
Ollama Max Power	5.6W	7.4W
Linpack Max Power	6.9W	9.1W

Ethernet Upload	942 Mbps	940 Mbps
Ethernet Download	941 Mbps	940 Mbps

Cooling & Thermal Testing

Raspberry Pi 4 cooler comparison78°C peak with stock cooling · 4 cooling setups tested · best cooler cuts 15.0°C

Frequently Asked Questions

Which is faster, the Libre Computer Alta or the Raspberry Pi 4?

The Libre Computer Alta is faster in our testing, scoring 1,246 in Geekbench 6 multi-core versus 614 for the Raspberry Pi 4, a 103% advantage.

Which board is the best value?

Of the boards in this comparison, the Libre Computer Alta offers the best performance per dollar: 10.0 Geekbench 6 multi-core points per dollar at $125.00.

Add One More Board

You can compare up to 3 boards at once. Add one more to get the complete comparison.

Raspberry Pi 4 vs Libre Computer Alta

Comparison Summary

Test Environment

Detailed Reviews

CPU Performance

Geekbench 6

7-Zip Benchmark

High Performance Linpack

UnixBench

PassMark CPU

CPU Mining (cpuminer-multi)

MAME: Street Fighter II: The World Warrior

Memory Performance

PassMark RAM

TinyMemBench

GPU Performance

glmark2 (OpenGL)

vkmark (Vulkan)

SuperTuxKart (Gaming)

AI & LLM Performance

Ollama LLM Benchmark

Storage Performance

fio Storage Performance - microSD

fio Storage Performance - eMMC

Network Performance

iPerf3 Network Performance

Power & Thermal

Power Consumption

Benchmark Data

Cooling & Thermal Testing

Frequently Asked Questions

Which is faster, the Libre Computer Alta or the Raspberry Pi 4?

Which board is the best value?

Add One More Board

Raspberry Pi 4 vs Libre Computer Alta

Comparison Summary

Test Environment

Detailed Reviews

CPU Performance

Geekbench 6

7-Zip Benchmark

High Performance Linpack

UnixBench

PassMark CPU

CPU Mining (cpuminer-multi)

MAME: Street Fighter II: The World Warrior

Memory Performance

PassMark RAM

TinyMemBench

GPU Performance

glmark2 (OpenGL)

vkmark (Vulkan)

SuperTuxKart (Gaming)

AI & LLM Performance

Ollama LLM Benchmark

Storage Performance

fio Storage Performance - microSD

fio Storage Performance - eMMC

Network Performance

iPerf3 Network Performance

Power & Thermal

Power Consumption

Benchmark Data

Cooling & Thermal Testing

Frequently Asked Questions

Which is faster, the Libre Computer Alta or the Raspberry Pi 4?

Which board is the best value?

Related Single Board Computers

Add One More Board