GeForce RTX 4080 Mobile vs 8400M GT

Place in the ranking	1408	27
Place by popularity	not in top-100	not in top-100
Power efficiency	0.85	41.25
Architecture	Tesla (2006−2010)	Ada Lovelace (2022−2024)
GPU code name	G86	AD104
Market segment	Laptop	Laptop
Release date	9 May 2007 (17 years ago)	3 January 2023 (1 year 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	7424
Core clock speed	450 MHz	1290 MHz
Boost clock speed	no data	1665 MHz
Number of transistors	210 million	35,800 million
Manufacturing process technology	80 nm	4 nm
Power consumption (TDP)	14 Watt	110 Watt
Texture fill rate	3.600	386.3
Floating-point processing power	0.0288 TFLOPS	24.72 TFLOPS
ROPs	4	80
TMUs	8	232
Tensor Cores	no data	232
Ray Tracing Cores	no data	58

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	12 GB
Memory bus width	128 Bit	192 Bit
Memory clock speed	600 MHz	2250 MHz
Memory bandwidth	19.2 GB/s	432.0 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

Portable Device Dependent

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	6.7
OpenGL	3.3	4.6
OpenCL	1.1	3.0
Vulkan	N/A	1.3
CUDA	1.1	8.9

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 4080 Mobile 65.06
+38171%

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 4080 Mobile 25098
+37927%

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	159
1440p	-0−1	103
4K	-0−1	73

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

2−3

−7350%

149
+7350%

Full HD
Medium Preset

Assassin's Creed Odyssey	3−4 −3600%	110−120 +3600%
Call of Duty: Modern Warfare	2−3 −5050%	100−110 +5050%
Cyberpunk 2077	2−3 −7050%	143 +7050%
Hitman 3	4−5 −2700%	110−120 +2700%
Horizon Zero Dawn	8−9 −2475%	200−210 +2475%
Shadow of the Tomb Raider	4−5 −5100%	200−210 +5100%
Watch Dogs: Legion	27−30 −414%	140−150 +414%

Full HD
High Preset

Assassin's Creed Odyssey	3−4 −3600%	110−120 +3600%
Call of Duty: Modern Warfare	2−3 −5050%	100−110 +5050%
Cyberpunk 2077	2−3 −6100%	124 +6100%
Hitman 3	4−5 −2700%	110−120 +2700%
Horizon Zero Dawn	8−9 −2475%	200−210 +2475%
Shadow of the Tomb Raider	4−5 −8675%	351 +8675%
The Witcher 3: Wild Hunt	9−10 −1122%	110−120 +1122%
Watch Dogs: Legion	27−30 −414%	140−150 +414%

Full HD
Ultra Preset

Assassin's Creed Odyssey	3−4 −3600%	110−120 +3600%
Call of Duty: Modern Warfare	2−3 −5050%	100−110 +5050%
Cyberpunk 2077	2−3 −5950%	121 +5950%
Hitman 3	4−5 −2700%	110−120 +2700%
Horizon Zero Dawn	8−9 −2475%	200−210 +2475%
Shadow of the Tomb Raider	4−5 −7850%	318 +7850%
The Witcher 3: Wild Hunt	9−10 −1811%	172 +1811%
Watch Dogs: Legion	27−30 −293%	110 +293%

1440p
Ultra Preset

Cyberpunk 2077	0−1	82
Hitman 3	6−7 −1133%	70−75 +1133%
Horizon Zero Dawn	2−3 −6050%	120−130 +6050%

1440p
Epic Preset

Red Dead Redemption 2

2−3

−4450%

90−95
+4450%

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −3900%	40−45 +3900%
Assassin's Creed Valhalla	0−1	55

4K
Epic Preset

Red Dead Redemption 2

2−3

−2450%

50−55
+2450%

Full HD
Medium Preset

Assassin's Creed Valhalla	90−95 +0%	90−95 +0%
Battlefield 5	160−170 +0%	160−170 +0%
Far Cry 5	100−110 +0%	100−110 +0%
Far Cry New Dawn	120−130 +0%	120−130 +0%
Forza Horizon 4	210−220 +0%	210−220 +0%
Metro Exodus	140−150 +0%	140−150 +0%
Red Dead Redemption 2	110−120 +0%	110−120 +0%

Full HD
High Preset

Assassin's Creed Valhalla	90−95 +0%	90−95 +0%
Battlefield 5	160−170 +0%	160−170 +0%
Far Cry 5	100−110 +0%	100−110 +0%
Far Cry New Dawn	120−130 +0%	120−130 +0%
Forza Horizon 4	210−220 +0%	210−220 +0%
Metro Exodus	140−150 +0%	140−150 +0%
Red Dead Redemption 2	110−120 +0%	110−120 +0%

Full HD
Ultra Preset

Assassin's Creed Valhalla	118 +0%	118 +0%
Far Cry 5	100−110 +0%	100−110 +0%
Forza Horizon 4	210−220 +0%	210−220 +0%

Full HD
Epic Preset

Red Dead Redemption 2

110−120

+0%

110−120

+0%

1440p
High Preset

Battlefield 5	110−120 +0%	110−120 +0%
Far Cry New Dawn	80−85 +0%	80−85 +0%

1440p
Ultra Preset

Assassin's Creed Odyssey	60−65 +0%	60−65 +0%
Assassin's Creed Valhalla	93 +0%	93 +0%
Call of Duty: Modern Warfare	60−65 +0%	60−65 +0%
Far Cry 5	60−65 +0%	60−65 +0%
Forza Horizon 4	260−270 +0%	260−270 +0%
Metro Exodus	95−100 +0%	95−100 +0%
Shadow of the Tomb Raider	237 +0%	237 +0%
The Witcher 3: Wild Hunt	140 +0%	140 +0%
Watch Dogs: Legion	220−230 +0%	220−230 +0%

4K
High Preset

Battlefield 5	55−60 +0%	55−60 +0%
Far Cry New Dawn	45−50 +0%	45−50 +0%
Hitman 3	40−45 +0%	40−45 +0%
Horizon Zero Dawn	211 +0%	211 +0%
Metro Exodus	75−80 +0%	75−80 +0%
The Witcher 3: Wild Hunt	117 +0%	117 +0%

4K
Ultra Preset

Call of Duty: Modern Warfare	35−40 +0%	35−40 +0%
Cyberpunk 2077	39 +0%	39 +0%
Far Cry 5	30−35 +0%	30−35 +0%
Forza Horizon 4	75−80 +0%	75−80 +0%
Shadow of the Tomb Raider	121 +0%	121 +0%
Watch Dogs: Legion	56 +0%	56 +0%

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

in Shadow of the Tomb Raider, with 1080p resolution and the High Preset, the RTX 4080 Mobile is 8675% faster.

All in all, in popular games:

RTX 4080 Mobile is ahead in 29 tests (41%)
there's a draw in 41 test (59%)

Pros & cons summary

Performance score	0.17	65.06
Recency	9 May 2007	3 January 2023
Maximum RAM amount	512 MB	12 GB
Chip lithography	80 nm	4 nm
Power consumption (TDP)	14 Watt	110 Watt

8400M GT has 685.7% lower power consumption.

RTX 4080 Mobile, on the other hand, has a 38170.6% higher aggregate performance score, an age advantage of 15 years, a 2300% higher maximum VRAM amount, and a 1900% more advanced lithography process.

The GeForce RTX 4080 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.