Radeon 680M vs T400 4GB

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 680M vs T400 4GB FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.

Search any supported game below to compare 1080p FPS for both components.

Radeon 680M 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 680M

2023

Why buy it

✅Better long-term bet: RDNA 2.0 (2020−2025) on 6nm gives it a newer hardware base for upcoming games.
✅Measures 1mm instead of 156mm, a 155mm shorter card that is more SFF-friendly.
✅More future proof: RDNA 2.0 (2020−2025) on 6nm with a newer platform for upcoming games.

Trade-offs

❌Lower G3D Mark per dollar, at 0 vs 23.9 G3D/$ (Unknown MSRP vs $159 MSRP).
❌66.7% higher power demand at 50W vs 30W.

T400 4GB

2021

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 23.9 vs 0 G3D/$ ($159 MSRP vs Unknown MSRP).
✅Draws 30W instead of 50W, a 20W reduction.

Trade-offs

❌Older hardware, 2 GB of VRAM, and weaker feature support mean it will age faster in newer AAA releases.
❌15500% longer card at 156mm vs 1mm.

Quick Answers

Which GPU is faster for gaming right now?

Radeon 680M is the faster gaming card right now based on the synthetic data we have. It leads by 0.9% in PassMark G3D (3,836 vs 3,803), which is the best performance signal available in this matchup.

Which GPU is the safer long-term pick for 2026 and beyond?

Radeon 680M is the safer long-term pick for 2026 and beyond. The case is simple: the newer upscaling stack, FSR Upscaling / FSR 4 (2025) instead of no meaningful modern upscaling stack, a 6nm process instead of 12nm, 12 vs 0 ray-tracing units, and a newer 2023 generation instead of 2021. That gives it the more rounded hardware package for newer games.

Which GPU is the better buy today?

T400 4GB makes the most sense today based on the pricing and value data we have for this matchup. If you are mainly targeting 1080p and some 1440p, T400 4GB is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon 680M has the stronger long-term case.

Radeon 680M vs T400 4GB Technical Specifications

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

Radeon 680M

The Radeon 680M is manufactured by AMD. It was released in January 3 2023. It features the RDNA 2.0 architecture. The core clock ranges from 2000 MHz to 2200 MHz. It has 768 shading units. The thermal design power (TDP) is 50W. Manufactured using 6 nm process technology. It features 12 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 3,836 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 680M scores 3,836 and the T400 4GB reaches 3,803 in the G3D Mark benchmark — just a 0.9% difference, making them near-identical in rasterization performance. The Radeon 680M is built on RDNA 2.0 while the T400 4GB uses Turing, both on 6 nm vs 12 nm. Shader units: 768 (Radeon 680M) vs 384 (T400 4GB). Raw compute: 3.379 TFLOPS (Radeon 680M) vs 1.094 TFLOPS (T400 4GB). Boost clocks: 2200 MHz vs 1425 MHz.

Feature	Radeon 680M	T400 4GB
G3D Mark Score	3,836	3,803
Architecture	RDNA 2.0	Turing
Process Node	6 nm	12 nm
Shading Units	768+100%	384
Compute (TFLOPS)	3.379 TFLOPS+209%	1.094 TFLOPS
Boost Clock	2200 MHz+54%	1425 MHz
ROPs	32+100%	16
TMUs	48+100%	24
L1 Cache	256 KB	384 KB+50%
L2 Cache	2 MB+100%	1 MB

✨

Advanced Features (DLSS/FSR)

Feature	Radeon 680M	T400 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 video memory. Memory bus width is System on the Radeon 680M and 64-bit on the T400 4GB. L2 Cache: 2 MB (Radeon 680M) vs 1 MB (T400 4GB) — the Radeon 680M has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon 680M	T400 4GB
VRAM Capacity	2 GB	2 GB
Memory Type	Shared	GDDR5
Bus Width	System	64-bit
L2 Cache	2 MB+100%	1 MB

🖥️

Display & API Support

DirectX support: 12_2 (Radeon 680M) vs 12_0 (T400 4GB). Maximum simultaneous displays: 0 vs 3.

Feature	Radeon 680M	T400 4GB
DirectX	12_2	12_0
Max Displays	0	3

🎬

Media & Encoding

Hardware encoder: VCN 3.1 (Radeon 680M) vs NVENC 7th Gen (T400 4GB). Decoder: VCN 3.1 vs NVDEC 4th Gen.

Feature	Radeon 680M	T400 4GB
Encoder	VCN 3.1	NVENC 7th Gen
Decoder	VCN 3.1	NVDEC 4th Gen

🔌

Power & Dimensions

The Radeon 680M draws 50W versus the T400 4GB's 30W — a 50% difference. The T400 4GB is more power-efficient. Recommended PSU: 350W (Radeon 680M) vs 350W (T400 4GB). Power connectors: PCIe-powered vs PCIe-powered. Card length: 1mm vs 156mm, occupying 0 vs 1 slots.

Feature	Radeon 680M	T400 4GB
TDP	50W	30W-40%
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Length	1mm	156mm
Slots	0-100%	1
Perf/Watt	76.7	126.8+65%

💰

Value Analysis

The newer card here is Radeon 680M (2023 vs 2021).

Feature	Radeon 680M	T400 4GB
MSRP	—	$159
Codename	Rembrandt+	TU117
Release	January 3 2023	May 6 2021
Ranking	#512	#518

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