GeForce RTX 3080 Mobile vs 8400M GT

Place in the ranking	1411	92
Place by popularity	not in top-100	not in top-100
Power efficiency	0.83	25.47
Architecture	Tesla (2006−2010)	Ampere (2020−2024)
GPU code name	G86	GA104
Market segment	Laptop	Laptop
Release date	9 May 2007 (17 years ago)	12 January 2021 (3 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	16	6144
Core clock speed	450 MHz	1110 MHz
Boost clock speed	no data	1545 MHz
Number of transistors	210 million	17,400 million
Manufacturing process technology	80 nm	8 nm
Power consumption (TDP)	14 Watt	115 Watt
Texture fill rate	3.600	296.6
Floating-point processing power	0.0288 TFLOPS	18.98 TFLOPS
ROPs	4	96
TMUs	8	192
Tensor Cores	no data	192
Ray Tracing Cores	no data	48

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop size	no data	large
Interface	PCIe 1.0 x16	PCIe 4.0 x16

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR3	GDDR6
Maximum RAM amount	512 MB	8 GB
Memory bus width	128 Bit	256 Bit
Memory clock speed	600 MHz	1750 MHz
Memory bandwidth	19.2 GB/s	448.0 GB/s
Shared memory	-	-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors

No outputs

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	11.1 (10_0)	12 Ultimate (12_2)
Shader Model	4.0	6.5
OpenGL	3.3	4.6
OpenCL	1.1	2.0
Vulkan	N/A	1.2
CUDA	1.1	8.6

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

8400M GT 0.17

RTX 3080 Mobile 42.77
+25059%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

8400M GT 66

RTX 3080 Mobile 16477
+24865%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD	-0−1	120
1440p	-0−1	75
4K	-0−1	44

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

2−3

−6600%

134
+6600%

Full HD
Medium Preset

Assassin's Creed Odyssey	3−4 −3967%	122 +3967%
Call of Duty: Modern Warfare	2−3 −4100%	80−85 +4100%
Cyberpunk 2077	2−3 −5750%	117 +5750%
Hitman 3	4−5 −3150%	130 +3150%
Horizon Zero Dawn	8−9 −2025%	170−180 +2025%
Shadow of the Tomb Raider	4−5 −3725%	150−160 +3725%
Watch Dogs: Legion	27−30 −371%	130−140 +371%

Full HD
High Preset

Assassin's Creed Odyssey	3−4 −6167%	188 +6167%
Call of Duty: Modern Warfare	2−3 −4100%	80−85 +4100%
Cyberpunk 2077	2−3 −4850%	99 +4850%
Hitman 3	4−5 −2825%	117 +2825%
Horizon Zero Dawn	8−9 −2025%	170−180 +2025%
Shadow of the Tomb Raider	4−5 −5225%	213 +5225%
The Witcher 3: Wild Hunt	9−10 −844%	85−90 +844%
Watch Dogs: Legion	27−30 −711%	227 +711%

Full HD
Ultra Preset

Assassin's Creed Odyssey	3−4 −2400%	75 +2400%
Call of Duty: Modern Warfare	2−3 −4100%	80−85 +4100%
Cyberpunk 2077	2−3 −4400%	90 +4400%
Hitman 3	4−5 −2600%	108 +2600%
Horizon Zero Dawn	8−9 −1838%	155 +1838%
Shadow of the Tomb Raider	4−5 −4525%	185 +4525%
The Witcher 3: Wild Hunt	9−10 −1078%	106 +1078%
Watch Dogs: Legion	27−30 −164%	74 +164%

1440p
Ultra Preset

Cyberpunk 2077	0−1	30−35
Hitman 3	6−7 −1167%	76 +1167%
Horizon Zero Dawn	2−3 −5950%	121 +5950%

1440p
Epic Preset

Red Dead Redemption 2

2−3

−4050%

83
+4050%

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −4200%	43 +4200%
Assassin's Creed Valhalla	0−1	38

4K
Epic Preset

Red Dead Redemption 2

2−3

−2200%

46
+2200%

Full HD
Medium Preset

Assassin's Creed Valhalla	98 +0%	98 +0%
Battlefield 5	130−140 +0%	130−140 +0%
Far Cry 5	85−90 +0%	85−90 +0%
Far Cry New Dawn	100−110 +0%	100−110 +0%
Forza Horizon 4	190−200 +0%	190−200 +0%
Metro Exodus	130−140 +0%	130−140 +0%
Red Dead Redemption 2	95−100 +0%	95−100 +0%

Full HD
High Preset

Assassin's Creed Valhalla	79 +0%	79 +0%
Battlefield 5	130−140 +0%	130−140 +0%
Far Cry 5	85−90 +0%	85−90 +0%
Far Cry New Dawn	100−110 +0%	100−110 +0%
Forza Horizon 4	190−200 +0%	190−200 +0%
Metro Exodus	144 +0%	144 +0%
Red Dead Redemption 2	96 +0%	96 +0%

Full HD
Ultra Preset

Assassin's Creed Valhalla	69 +0%	69 +0%
Far Cry 5	85−90 +0%	85−90 +0%
Forza Horizon 4	157 +0%	157 +0%

Full HD
Epic Preset

Red Dead Redemption 2

+0%

1440p
High Preset

Battlefield 5	80−85 +0%	80−85 +0%
Far Cry New Dawn	60−65 +0%	60−65 +0%

1440p
Ultra Preset

Assassin's Creed Odyssey	62 +0%	62 +0%
Assassin's Creed Valhalla	60 +0%	60 +0%
Call of Duty: Modern Warfare	45−50 +0%	45−50 +0%
Far Cry 5	45−50 +0%	45−50 +0%
Forza Horizon 4	230−240 +0%	230−240 +0%
Metro Exodus	90 +0%	90 +0%
Shadow of the Tomb Raider	141 +0%	141 +0%
The Witcher 3: Wild Hunt	79 +0%	79 +0%
Watch Dogs: Legion	177 +0%	177 +0%

4K
High Preset

Battlefield 5	40−45 +0%	40−45 +0%
Far Cry New Dawn	35−40 +0%	35−40 +0%
Hitman 3	47 +0%	47 +0%
Horizon Zero Dawn	33 +0%	33 +0%
Metro Exodus	74 +0%	74 +0%
The Witcher 3: Wild Hunt	70 +0%	70 +0%

4K
Ultra Preset

Call of Duty: Modern Warfare	27−30 +0%	27−30 +0%
Cyberpunk 2077	14−16 +0%	14−16 +0%
Far Cry 5	24−27 +0%	24−27 +0%
Forza Horizon 4	87 +0%	87 +0%
Shadow of the Tomb Raider	79 +0%	79 +0%
Watch Dogs: Legion	33 +0%	33 +0%

Here's the range of performance differences observed across popular games:

in Cyberpunk 2077, with 1080p resolution and the Low Preset, the RTX 3080 Mobile is 6600% faster.

All in all, in popular games:

RTX 3080 Mobile is ahead in 29 tests (41%)
there's a draw in 41 test (59%)

Pros & cons summary

Performance score	0.17	42.77
Recency	9 May 2007	12 January 2021
Maximum RAM amount	512 MB	8 GB
Chip lithography	80 nm	8 nm
Power consumption (TDP)	14 Watt	115 Watt

8400M GT has 721.4% lower power consumption.

RTX 3080 Mobile, on the other hand, has a 25058.8% higher aggregate performance score, an age advantage of 13 years, a 1500% higher maximum VRAM amount, and a 900% more advanced lithography process.

The GeForce RTX 3080 Mobile is our recommended choice as it beats the GeForce 8400M GT in performance tests.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.