Radeon RX 550X (móvel) vs T400 4GB

AMD

Radeon RX 550X (móvel)

2018Core: 1100 MHzBoost: 1287 MHz
Similar parts
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VS

T400 4GB

2021Core: 420 MHzBoost: 1425 MHz
Similar parts
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Radeon RX 550X (móvel) vs T400 4GB Performance Spectrum

About G3D Mark

G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Radeon RX 550X (móvel) vs T400 4GB: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

Radeon RX 550X (móvel)

2018

Why buy it

  • Costs $124 less on MSRP ($35 MSRP vs $159 MSRP).
  • Delivers 353.9% more G3D Mark for each dollar spent, at 108.6 vs 23.9 G3D/$ ($35 MSRP vs $159 MSRP).
  • Access to a newer frame-generation stack with FSR Frame Generation (2023).

Trade-offs

  • Older hardware, 2 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
  • 66.7% higher power demand at 50W vs 30W.

T400 4GB

2021

Why buy it

  • Draws 30W instead of 50W, a 20W reduction.
  • More future proof: Turing (2018−2022) on 12nm with a newer platform for upcoming games.

Trade-offs

  • No equivalent frame-generation stack like FSR Frame Generation (2023).
  • Older hardware, 2 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
  • 354.3% HIGHER MSRP
    $159 MSRPvs$35 MSRP
  • Lower G3D Mark per dollar, at 23.9 vs 108.6 G3D/$ ($159 MSRP vs $35 MSRP).

Quick Answers

Which GPU is faster for gaming right now?
T400 4GB is the faster gaming card right now based on the synthetic data we have. It leads by 0.1% in PassMark G3D (3,803 vs 3,800), which is the best performance signal available in this matchup.
Which GPU is the safer long-term pick for 2026 and beyond?
T400 4GB is the safer long-term pick for 2026 and beyond. The case is simple: a 12nm process instead of 14nm and a newer 2021 generation instead of 2018. That makes it the less risky pick as game demands keep moving.
Which GPU is the better buy today?
Radeon RX 550X (móvel) makes the most sense to buy today. It is $124 cheaper on MSRP at $35 vs $159, and it leads G3D-per-dollar by 353.9% (108.6 vs 23.9), which is enough to swing the recommendation its way. If you are mainly targeting 1080p and some 1440p, Radeon RX 550X (móvel) is the easier value choice. If you care more about 1080p and some 1440p headroom, T400 4GB has the stronger long-term case.

Radeon RX 550X (móvel) vs T400 4GB Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

AMD

Radeon RX 550X (móvel)

The Radeon RX 550X (móvel) is manufactured by AMD. It was released in April 11 2018. It features the GCN 4.0 architecture. The core clock ranges from 1100 MHz to 1287 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 3,800 points.

T400 4GB

The T400 4GB is manufactured by an unknown manufacturer. It was released in May 6 2021. It features the Turing architecture. The core clock ranges from 420 MHz to 1425 MHz. It has 384 shading units. The thermal design power (TDP) is 30W. Manufactured using 12 nm process technology. G3D Mark benchmark score: 3,803 points.

Graphics Performance

The Radeon RX 550X (móvel) scores 3,800 and the T400 4GB reaches 3,803 in the G3D Mark benchmark — just a 0.1% difference, making them near-identical in rasterization performance. The Radeon RX 550X (móvel) is built on GCN 4.0 while the T400 4GB uses Turing, both on 14 nm vs 12 nm. Shader units: 640 (Radeon RX 550X (móvel)) vs 384 (T400 4GB). Raw compute: 1.647 TFLOPS (Radeon RX 550X (móvel)) vs 1.094 TFLOPS (T400 4GB). Boost clocks: 1287 MHz vs 1425 MHz.

FeatureRadeon RX 550X (móvel)T400 4GB
G3D Mark Score
3,800
3,803
Architecture
GCN 4.0
Turing
Process Node
14 nm
12 nm
Shading Units
640+67%
384
Compute (TFLOPS)
1.647 TFLOPS+51%
1.094 TFLOPS
Boost Clock
1287 MHz
1425 MHz+11%
ROPs
16
16
TMUs
40+67%
24
L1 Cache
160 KB
384 KB+140%
L2 Cache
0.5 MB
1 MB+100%

Advanced Features (DLSS/FSR)

The clearest feature edge for the Radeon RX 550X (móvel) is support for FSR Frame Generation. In games that support it, that can smooth out motion and lift perceived FPS. The T400 4GB does not have comparable native support in the same tier.

FeatureRadeon RX 550X (móvel)T400 4GB
Upscaling Tech
FSR Upscaling / FSR 4
Upscaling support
Frame Generation
FSR Frame Generation
Not Supported
Ray Reconstruction
No
No
Low Latency
AMD Anti-Lag
Standard
💾

Video Memory (VRAM)

Both cards ship with 2 GB of GDDR5. Memory bus width is 256-bit on the Radeon RX 550X (móvel) and 64-bit on the T400 4GB. L2 Cache: 0.5 MB (Radeon RX 550X (móvel)) vs 1 MB (T400 4GB) — the T400 4GB has significantly larger on-die cache to reduce VRAM reliance.

FeatureRadeon RX 550X (móvel)T400 4GB
VRAM Capacity
2 GB
2 GB
Memory Type
GDDR5
GDDR5
Bus Width
256-bit+300%
64-bit
L2 Cache
0.5 MB
1 MB+100%
🔌

Power & Dimensions

The Radeon RX 550X (móvel) draws 50W versus the T400 4GB's 30W — a 50% difference. The T400 4GB is more power-efficient. Recommended PSU: 350W (Radeon RX 550X (móvel)) vs 350W (T400 4GB). Power connectors: PCIe-powered vs PCIe-powered.

FeatureRadeon RX 550X (móvel)T400 4GB
TDP
50W
30W-40%
Recommended PSU
350W
350W
Power Connector
PCIe-powered
PCIe-powered
Length
156mm
Slots
1
Perf/Watt
76.0
126.8+67%
💰

Value Analysis

At launch, the Radeon RX 550X (móvel) came in at $35, while the T400 4GB launched at $159. On MSRP, Radeon RX 550X (móvel) was 78% cheaper ($124 less). Performance per dollar on MSRP (G3D Mark / MSRP): 108.6 (Radeon RX 550X (móvel)) vs 23.9 (T400 4GB) — the Radeon RX 550X (móvel) offers 354.4% better value. The newer card here is T400 4GB (2021 vs 2018).

FeatureRadeon RX 550X (móvel)T400 4GB
MSRP
$35-78%
$159
Performance per Dollar
108.6+354%
23.9
Codename
Polaris 23
TU117
Release
April 11 2018
May 6 2021
Ranking
#648
#518

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