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--- blog:blog_flash_memory_benchmarks [2021/01/24 15:42] – [Micro SD - Integral XC I A1 256GB] john
+++ blog:blog_flash_memory_benchmarks [2021/01/27 13:23] (current) – [Sandisk Extreme 120MB/s 64GB] john
@@ Line 1: / Line 1: @@
 ====== Flash Memory Benchmarks ======
-===== CF - Canon FC-8M 8MB =====
+Because I've got a load of different type of flash memory cards in my spares box, I maintain a spreadsheet and performance data list for them all.
+{{:blog:flashmemorybenchmarks.png?800|}}
+{{ :blog:flash_media_comparison.xlsx |}}
+===== Compact Flash =====
+==== Canon FC-8M 8MB ====
 {{:blog:img20210124141803.jpg?200|}}
@@ Line 14: / Line 21: @@
 First card I owned, from a Canon Powershot 2Mpix camera.
-===== CF - Delkin 511MB =====
+==== Delkin 511MB ====
 {{:blog:img20210124143152.jpg?250|}} {{:blog:delkin_511mb.png?250|}}
-===== CF - Integral 64MB =====
+==== Integral 64MB ====
 {{:blog:img20210124141810.jpg?200|}}
@@ Line 31: / Line 38: @@
 I suspect this one is virtually dead.
-===== CF - Kingston Elite Pro 133x 4GB =====
+==== Kingston Elite Pro 133x 4GB ====
 {{:blog:img20210124143917.jpg?200|}} {{:blog:kingston_elitepro_133_4gb.png?250|}}
-===== CF - Kingston Elite Pro 133x 8GB =====
+==== Kingston Elite Pro 133x 8GB ====
 {{:blog:img20210124141828.jpg?200|}} {{:blog:kingstone_elitepro_133_8gb.png?250|}}
-===== CF - Kingston Ultimate 266x 16GB =====
+==== Kingston Ultimate 266x 16GB ====
 {{:blog:img20210124141839.jpg?200|}} {{:blog:kingston_ultimate_266_16gb.png?250|}}
-===== CF - Sandisk Extreme IV 2.0GB =====
+==== Sandisk Extreme IV 2.0GB ====
 {{:blog:img20210124141820.jpg?200|}} {{:blog:sandisk_extreme_iv_2gb.png?250|}}
-===== CF - Sandisk Ultra II 4.0GB ====
+==== Sandisk Ultra II 4.0GB ====
 {{:blog:img20210124143619.jpg?200|}} {{:blog:sandisk_ultra2_4gb.png?250|}}
-===== CF - Sandisk Ultra 50MB/s 16GB =====
+==== Sandisk Ultra 50MB/s 16GB ====
 {{:blog:img20210124141849.jpg?200|}} {{:blog:sandisk_ultra_50mbs_16gb.png?250|}}
-===== CF - Transcend 133x 8GB =====
+==== Sandisk Extreme 120MB/s 64GB ====
+Wow. Very, //very// fast.
+{{:blog:img20210127131929.jpg?200|}} {{:blog:cf_sandisk_extreme_120_64gb.png?250|}}
+==== Transcend 133x 8GB ====
 {{:blog:img20210124141815.jpg?200|}} {{:blog:transcend_133_8gb.png?250|}}
-===== SD - Crucial 2GB =====
+===== SD Cards =====
+==== Crucial 2GB ====
 {{:blog:sd_crucial_2gb.png?250|}}
-===== SD - Integral Ultima XC I 64GB =====
+==== Integral Ultima XC I 64GB ====
-===== SD - Sandisk 2GB =====
+Really odd performance with this one.
+{{:blog:sd_integral_64gb.png?250|}}
+==== Sandisk 2GB ====
 {{:blog:sd_sandisk_2gb.png?250|}}
-===== SD - Sandisk Ultra 30MB/s 32GB =====
+==== Sandisk Ultra 30MB/s 32GB ====
+{{:blog:sd_sandisk_ultra_32gb.png?250|}}
+==== Sandisk Ultra II 2GB ====
+{{:blog:sd_sandisk_ultra_2gb.png?250|}}
+===== Micro SD Cards =====
+==== Sandisk Ultra HC I 8GB ====
+Strong read performance.
-===== SD - Sandisk Ultra II 2GB =====
+{{:blog:microsd_sandisk_hci_8gb.png?250|}}
+==== Kingston HC 4 32GB ====
-===== Micro SD - Sandisk Ultra HC I 8GB =====
+Pretty slow.
-===== Micro SD - Kingston HC 4 32GB =====
+{{:blog:microsd_kingston_hc4_32gb.png?250|}}
+==== Transcend XC I A1 V30 128GB ====
-===== Micro SD - Transcend XC I A1 V30 128GB =====
+Excellent performance, but what is up with the write performance fluctuation? Does this thing have a SLC buffer that is getting flushed every so many megabytes?
-===== Micro SD - Integral XC I A1 256GB =====
+{{:blog:microsd_transcend_x1_a1_v30.png?250|}}
+==== Integral XC I A1 256GB ====
 {{:blog:microsd_integral_256gb.png?250|}}
-===== Micro SD - UNKNOWN HC 32GB =====
+==== UNKNOWN HC 32GB ====
 Failed test. Was averaging 10MB/s read before failure.
 {{:blog:sd_unknown_32gb.png?250|}}