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CF/SD Performance Database Archive - Continued

November 1, 2004: The SLR/n section of the database is no longer being updated, as we no longer have access to this camera.

CompactFlash Write Speed - Kodak DCS Pro SLR/n (Firmware Version 4.5.4.02171)

The data in the table below was derived by timing how long it took the Kodak DCS Pro SLR/n to write out 10 RAW .DCR photos to the card. Timing commenced when the camera's card status light illuminated, and stopped when the light went out. Each test cycle was performed 3 times (if the card's capacity allowed for that) to ensure accurate results.

Card-to-card speed variation within the same brand and model, photographing scenes of varying detail and at different ISO settings - these and other factors may slightly alter write speed performance. As a result, write speed differences of 5% or less from card to card in the table below should be considered insignificant. If one card's write speed is within 5% of another's, the two cards are likely to offer effectively the same performance in the real world. Similarly, it's unlikely that most photographers would notice a difference between the fastest card and one that was up to 10% slower.

The DCS Pro SLR/n includes its own write speed tester built into the CF Card menu. It uses a different method of determining write speed that results in the throughput numbers being about 20-35% higher. Both our own results and the camera's throughput numbers are reported. Beware of comparing your own SLR/n's throughput numbers too directly with those below. That's because you won't be able to obtain exactly the same results unless you use an identically-configured camera, shoot a similar test scene and perform other steps that ensure testing accuracy.

The results are arranged in the table below from fastest to slowest (based on the RG DPI test method). The top 10% (based on the RG DPI test method) are marked in blue.

Brand and Model
(Card Identifier)1
Key Components Source2
Card
Type3
Date Added or Updated
Write Speed -
RAW .DCR4
(RG DPI test method)
Write Speed -
RAW .DCR4
(built-in write speed tester)
Hitachi Microdrive 4GB8
Hitachi
II
2004/3/18
3.292MB/sec
5.7MB/sec
Lexar 1GB 40X Write Acceleration
*new and improved*
9
Lexar
I
2004/3/18
3.154MB/sec
5.2MB/sec
Sandisk Extreme 1GB
(Edge stamp: BB0307VZ CHINA)
Sandisk
I
2004/3/18
2.843MB/sec
4.4MB/sec
Sandisk Ultra II 1GB
(Edge stamp: BB0306VZ CHINA)
Sandisk
I
2004/3/18
2.841MB/sec
4.4MB/sec
Lexar 1GB 40X Write Acceleration
(Edge stamp, first two digits: 38; WA on front label)
Lexar
I
2004/3/18
2.831MB/sec
4.4MB/sec
Lexar 2GB 40X Write Acceleration
Lexar
I
2004/3/18
2.822MB/sec
4.4MB/sec
Sandisk Extreme 512MB
(Edge stamp: AX0310WJA CHINA)
Sandisk I 2004/3/18 2.819MB/sec 4.4MB/sec
Sandisk Ultra II 512MB
(Edge stamp: AX0308VZ CHINA)
Sandisk I 2004/3/18 2.813MB/sec 4.4MB/sec
Sandisk Extreme 2GB Sandisk I 2004/3/18 2.811MB/sec 4.4MB/sec
Sandisk Ultra II 2GB Sandisk I 2004/3/18 2.809MB/sec 4.4MB/sec
Microtech (Pexagon) X-treme 1GB
(Edge stamp: THNCF1G02CA)
Toshiba (SLC)5 I 2004/3/18 2.785MB/sec 4.4MB/sec
Lexar 512MB 40X Write Acceleration
(Edge stamp, first two digits: 38; WA on front label)
Lexar
I
2004/3/18
2.776MB/sec
4.3MB/sec
Lexar 4GB 40X Write Acceleration8
Lexar
II
2004/3/18
2.766MB/sec
4.3MB/sec
Microtech (Pexagon) X-treme 512MB
(Edge stamp: THNCF512MCA)
Toshiba (SLC)5
I
2004/3/18
2.759MB/sec
4.3MB/sec
Sandisk "new" Ultra 1GB
(Edge stamp: BB0303TV CHINA)
Sandisk
I
2004/3/18
2.744MB/sec
4.2MB/sec
Sandisk "new" Ultra 512MB
(Edge stamp: AX0303TV CHINA)
Sandisk
I
2004/3/18
2.742MB/sec
4.2MB/sec
Lexar 512MB 24X Write Acceleration
(Edge stamp, first two digits: 38; WA on front label)
Lexar
I
2004/3/18
2.706MB/sec
4.2MB/sec
Transcend 1GB 45X
(45X on front label)
Transcend
I
2004/3/18
2.683MB/sec
4.2MB/sec
Ritek/Ridata 52X/PRO. 1GB
(Edge stamp: S4N88116)
unknown7 I 2004/3/18 2.670MB/sec 4.1MB/sec
Ritek/Ridata 52X/PRO. 2GB
(Edge stamp: U3F06116)
unknown7
I
2004/3/18
2.662MB/sec
4.1MB/sec
Delkin Devices PRO 640MB
(Label: CFPRO-640D)
For Delkin6
I
2004/3/18
2.658MB/sec
4.0MB/sec
Delkin Devices PRO 512MB
(Label: CFPRO-512D)
For Delkin6
I
2004/3/18
2.655MB/sec
4.0MB/sec
Transcend 512MB
(30X label on packaging)
Transcend
I
2004/3/18
2.570MB/sec
4.0MB/sec
Hitachi Microdrive 1GB
Hitachi
II
2004/3/18
2.500MB/sec
3.7MB/sec
SimpleTech PRO X 512MB
(Internal: STI/FLASH 1T)
SST
I
2004/3/18
2.293MB/sec
3.3MB/sec
SimpleTech PRO X 1GB
(Internal: STI/FLASH 1T)
SST
II
2004/3/18
2.181MB/sec
3.1MB/sec
Sandisk "original" Ultra 512MB
(Edge stamp: AX0211RX CHINA)
Sandisk
I
2004/3/18
2.065MB/sec
2.9MB/sec
Viking 512MB
(Edge stamp: THNCF512MMA)
Toshiba (MLC)5 I 2004/3/18 1.302MB/sec 1.6MB/sec
Kingston Memory 1024MB
(Edge stamp: THNCF1G02MA)
Toshiba (MLC)5
I
2004/3/18
1.161MB/sec
1.4MB/sec
Kingston Memory 512MB
(Edge stamp: THNCF512MMA)
Toshiba (MLC)5
I
2004/3/18
1.151MB/sec
1.4MB/sec
Sandisk Standard 1GB
(Edge stamp: BB0205NK CHINA)
Sandisk I 2004/3/18 609K/sec 1.2MB/sec
(1) To help determine whether the card you purchase is substantially similar to the one tested, the card's description includes an identifier - series number, internal name or other unique value - where possible and applicable. See How can I be sure the card I buy is the same as the one tested in this report? for information on interpreting the card identifier. With CompactFlash cards from companies that source components from other manufacturers, it's particularly important to compare the identifier noted here with the card you might select.
(2) Many companies sell CompactFlash media; relatively few actually design and manufacture the key internal components, including the controller and flash memory. This column lists the manufacturer of the controller.
(3) Type I CompactFlash cards are 3.3mm in thickness; Type II, 5.0mm.
(4) K/sec = Kilobytes per second (1 kilobyte = 1024 bytes); MB/sec = Megabytes per second (1 megabyte = 1024 kilobytes).
(5) Companies that source CompactFlash cards from Toshiba may opt for either the faster single level cell (SLC) or slower (but less expensive to manufacture) multi level cell (MLC) architecture. The Kingston cards tested were MLC; the company does, however, offer SLC-based CompactFlash cards on special order. Kingston's SLC-based cards have "-S" appended to the end of their part number, ie CF/512-S. Not all of Kingston's distributors will have the SLC cards listed among the products they can ship to dealers. For more information, contact Kingston.
(6) Delkin has not revealed the design and manufacturing partner for their Pro line of CompactFlash cards.
(7) These cards contain controllers from an unknown manufacturer, likely of Taiwanese origin.
(8) This camera's built-in formatter will format cards over 2GB as FAT32 with a 32K cluster size. This cluster size ensures more efficient camera-to-card transfers than the more-typical default FAT32 cluster size of 4K.
(9) This card, which began to ship in mid-March 2004, contains faster memory than the original 40X card. Lexar has revamped their entire 40X Pro Series lineup, from 256MB to 4GB, with the faster memory, though we've only tested the 1GB model. The packaging for the revamped 40X doesn't indicate that the card inside is different from an original 40X, though the card itself does: if the series number stamped on the card's edge ends in C977, it's a revamped 40X.
Next Page: Kodak DCS Pro SLR/n (SD)
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