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ASUS - ROG Swift PG39WCDM vs LG - UltraGear 45GX950A-B vs Samsung - Odyssey OLED G9 (G93SC)

Last updated Jun 1, 2026
ROG Swift PG39WCDMASUSRENDER
Probe A
ASUS
ROG Swift PG39WCDM
79.8/ 100A
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UltraGear 45GX950A-BLGRENDER
Probe B
LG
UltraGear 45GX950A-B
83.8/ 100A
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Odyssey OLED G9 (G93SC)SAMSUNGRENDER
Probe C
Samsung
Odyssey OLED G9 (G93SC)
89.0/ 100S
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Quick verdict

Across ASUS - ROG Swift PG39WCDM, LG - UltraGear 45GX950A-B, and Samsung - Odyssey OLED G9 (G93SC), the Samsung - Odyssey OLED G9 (G93SC) takes the highest Mars Score (89.0), followed by LG - UltraGear 45GX950A-B (83.8) and ASUS - ROG Swift PG39WCDM (79.8). See the full readout below.

Pick the Samsung - Odyssey OLED G9 (G93SC) if you want the highest-scoring choice on raw spec strength. The 5.2-point gap to the runner-up is wide — the chart-topper is the safer default.

Pick the LG - UltraGear 45GX950A-B when you want the spec advantages it carries over the leader (look at the per-product breakdown below).

Pick the ASUS - ROG Swift PG39WCDM if its specific spec advantages line up; the score gap to the runner-up is small enough that this is a legitimate value play.

ASUS - ROG Swift PG39WCDM
Performance84· 45%
Panel75· 40%
Connectivity—· 15%
LG - UltraGear 45GX950A-B
Performance81· 45%
Panel87· 40%
Connectivity—· 15%
Samsung - Odyssey OLED G9 (G93SC)
Performance84· 45%
Panel95· 40%
Connectivity—· 15%
Full readout

Spec comparison

Panel

SpecROG Swift PG39WCDMUltraGear 45GX950A-BOdyssey OLED G9 (G93SC)
Screen sizeⓘ39 "45 "49 "
Panel typeⓘQD-OLEDOLEDQD-OLED
Resolutionⓘ1440p5K5K
Aspect ratioⓘ21:921:932:9
Curvedⓘtruetruetrue

Performance

SpecROG Swift PG39WCDMUltraGear 45GX950A-BOdyssey OLED G9 (G93SC)
Refresh rateⓘ240 Hz165 Hz240 Hz
Response time (GtG)ⓘ0.03 ms0.03 ms0.03 ms
Peak brightnessⓘ1300 nits1300 nits1000 nits
DCI-P3 coverageⓘ99 %98.5 %99 %
HDRⓘtruetruetrue
G-Syncⓘtruetruefalse
FreeSyncⓘtruetruetrue

Connectivity

SpecROG Swift PG39WCDMUltraGear 45GX950A-BOdyssey OLED G9 (G93SC)
HDMI ports221
DisplayPort ports111
USB-C inputtruetruetrue
USB-C Power Deliveryⓘ90 W90 W65 W
KVMtruetruetrue
Drill down

Pairwise deep dives

2-way comparison
ASUS - ROG Swift PG39WCDM vs LG - UltraGear 45GX950A-B
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2-way comparison
ASUS - ROG Swift PG39WCDM vs Samsung - Odyssey OLED G9 (G93SC)
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2-way comparison
LG - UltraGear 45GX950A-B vs Samsung - Odyssey OLED G9 (G93SC)
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Reader questions

Frequently asked

Which scores highest overall: ASUS - ROG Swift PG39WCDM, LG - UltraGear 45GX950A-B, or Samsung - Odyssey OLED G9 (G93SC)?+

Samsung - Odyssey OLED G9 (G93SC) scores highest at 89.0, followed by LG - UltraGear 45GX950A-B (83.8) and ASUS - ROG Swift PG39WCDM (79.8).

Which is the newest of ASUS - ROG Swift PG39WCDM, LG - UltraGear 45GX950A-B, and Samsung - Odyssey OLED G9 (G93SC)?+

LG - UltraGear 45GX950A-B is the most recent, released 2025-04-22.

Which has higher refresh rate, Samsung - Odyssey OLED G9 (G93SC) or LG - UltraGear 45GX950A-B?+

Samsung - Odyssey OLED G9 (G93SC) refreshes at 240Hz vs 165Hz.

Which has faster response time, Samsung - Odyssey OLED G9 (G93SC) or LG - UltraGear 45GX950A-B?+

LG - UltraGear 45GX950A-B responds in 0.03ms vs 0.03ms.

Does Samsung - Odyssey OLED G9 (G93SC) or LG - UltraGear 45GX950A-B have USB-C with power delivery?+

Both offer USB-C PD — 65W on Samsung - Odyssey OLED G9 (G93SC), 90W on LG - UltraGear 45GX950A-B.

Spec drill

One spec at a time

Screen size→Panel type→Resolution→Refresh rate→Response time (GtG)→DCI-P3 coverage→

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