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Radeon R9 M485X vs T400 4GB

CPUCPUGPUGPU
AMD

Radeon R9 M485X

2016Core: 723 MHz
Similar parts
·······
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VS

T400 4GB

2021Core: 420 MHzBoost: 1425 MHz
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Radeon R9 M485X vs T400 4GB Performance Spectrum

Radeon R9 M485X
2 GB 250
3,801
0.0%
brand logoRadeon R9 M385
brand logoRadeon HD 6850 X2
brand logoRadeon R7 260
brand logoRadeon HD8970M
brand logoRadeon R9 290 / 390
brand logoRadeon RX 5700M
brand logoRadeon RX 6650M XT
brand logoRadeon RX 6800
T400 4GB
2 GB 30
3,803
+0.1%
brand logoGeForce GTX 745
brand logoGeForce GTX 470M SLI
brand logoGeForce GTX 675MX
brand logoGeForce GTX 960M
brand logoRadeon R9 290 / 390
brand logoGeForce GTX 980M SLI
brand logoGeForce RTX 3060 12GB
brand logoGeForce RTX 2080 Ti

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 R9 M485X 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 R9 M485X

2016

Why buy it

  • ✅Competitive enough if your priority is price, power, or specific feature preference.

Trade-offs

  • ❌2016 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
  • ❌
    183% HIGHER MSRP
    $450 MSRPvs$159 MSRP
  • ❌Lower G3D Mark per dollar, at 8.4 vs 23.9 G3D/$ ($450 MSRP vs $159 MSRP).
  • ❌733.3% higher power demand at 250W vs 30W.

T400 4GB

2021

Why buy it

  • ✅Costs $291 less on MSRP ($159 MSRP vs $450 MSRP).
  • ✅Delivers 183.2% more G3D Mark for each dollar spent, at 23.9 vs 8.4 G3D/$ ($159 MSRP vs $450 MSRP).
  • ✅Radeon R9 M485X is already obsolete for modern gaming, so T400 4GB is the less risky modern option long term.
  • ✅Draws 30W instead of 250W, a 220W reduction.

Trade-offs

  • ❌Older hardware, 2 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.

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 3,801), 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 28nm and a newer 2021 generation instead of 2016. That makes it the less risky pick as game demands keep moving.
Which GPU is the better buy today?
T400 4GB makes the most sense to buy today. It is $291 cheaper on MSRP at $159 vs $450, and it leads G3D-per-dollar by 183.2% (23.9 vs 8.4), so the value case lines up with the gaming result.

Radeon R9 M485X vs T400 4GB Technical Specifications

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

AMD

Radeon R9 M485X

The Radeon R9 M485X is manufactured by AMD. It was released in May 15 2016. It features the GCN 3.0 architecture. The core clock speed is 723 MHz. It has 2048 shading units. The thermal design power (TDP) is 250W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,801 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 R9 M485X scores 3,801 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 R9 M485X is built on GCN 3.0 while the T400 4GB uses Turing, both on 28 nm vs 12 nm. Shader units: 2,048 (Radeon R9 M485X) vs 384 (T400 4GB). Raw compute: 2.961 TFLOPS (Radeon R9 M485X) vs 1.094 TFLOPS (T400 4GB).

FeatureRadeon R9 M485XT400 4GB
G3D Mark Score
3,801
3,803
Architecture
GCN 3.0
Turing
Process Node
28 nm
12 nm
Shading Units
2048+433%
384
Compute (TFLOPS)
2.961 TFLOPS+171%
1.094 TFLOPS
ROPs
32+100%
16
TMUs
128+433%
24
L1 Cache
512 KB+33%
384 KB
L2 Cache
0.5 MB
1 MB+100%
✨

Advanced Features (DLSS/FSR)

FeatureRadeon R9 M485XT400 4GB
Upscaling Tech
FSR Upscaling / FSR 4
Upscaling support
Frame Generation
Not Supported
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 128-bit on the Radeon R9 M485X and 64-bit on the T400 4GB. L2 Cache: 0.5 MB (Radeon R9 M485X) vs 1 MB (T400 4GB) — the T400 4GB has significantly larger on-die cache to reduce VRAM reliance.

FeatureRadeon R9 M485XT400 4GB
VRAM Capacity
2 GB
2 GB
Memory Type
GDDR5
GDDR5
Bus Width
128-bit+100%
64-bit
L2 Cache
0.5 MB
1 MB+100%
🖥️

Display & API Support

DirectX support: 12 (Radeon R9 M485X) vs 12_0 (T400 4GB). Maximum simultaneous displays: 4 vs 3.

FeatureRadeon R9 M485XT400 4GB
DirectX
12
12_0
Max Displays
4+33%
3
🎬

Media & Encoding

Hardware encoder: VCE 3.0 (Radeon R9 M485X) vs NVENC 7th Gen (T400 4GB). Decoder: UVD 6.0 vs NVDEC 4th Gen.

FeatureRadeon R9 M485XT400 4GB
Encoder
VCE 3.0
NVENC 7th Gen
Decoder
UVD 6.0
NVDEC 4th Gen
Codecs
H.264,HEVC,VP9
—
🔌

Power & Dimensions

The Radeon R9 M485X draws 250W versus the T400 4GB's 30W — a 157.1% difference. The T400 4GB is more power-efficient. Recommended PSU: 350W (Radeon R9 M485X) vs 350W (T400 4GB). Power connectors: Mobile vs PCIe-powered.

FeatureRadeon R9 M485XT400 4GB
TDP
250W
30W-88%
Recommended PSU
350W
350W
Power Connector
Mobile
PCIe-powered
Length
—
156mm
Slots
—
1
Temp (Load)
80°C
—
Perf/Watt
15.2
126.8+734%
💰

Value Analysis

At launch, the Radeon R9 M485X came in at $450, while the T400 4GB launched at $159. On MSRP, T400 4GB was 64.7% cheaper ($291 less). Performance per dollar on MSRP (G3D Mark / MSRP): 8.4 (Radeon R9 M485X) vs 23.9 (T400 4GB) — the T400 4GB offers 184.5% better value. The newer card here is T400 4GB (2021 vs 2016).

FeatureRadeon R9 M485XT400 4GB
MSRP
$450
$159-65%
Performance per Dollar
8.4
23.9+185%
Codename
Amethyst
TU117
Release
May 15 2016
May 6 2021
Ranking
#519
#518
Search Radeon R9 M485X on AmazonSearch T400 4GB on Amazon

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