GeForce 8400M GT vs 7800 GT

Place in the ranking	1192	1408
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.01	no data
Power efficiency	0.68	0.85
Architecture	Curie (2003−2013)	Tesla (2006−2010)
GPU code name	G70	G86
Market segment	Desktop	Laptop
Release date	11 August 2005 (19 years ago)	9 May 2007 (17 years ago)
Launch price (MSRP)	$449	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	no data	16
Core clock speed	400 MHz	450 MHz
Number of transistors	302 million	210 million
Manufacturing process technology	110 nm	80 nm
Power consumption (TDP)	65 Watt	14 Watt
Texture fill rate	8.000	3.600
Floating-point processing power	no data	0.0288 TFLOPS
ROPs	16	4
TMUs	20	8

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).

Interface	PCIe 1.0 x16	PCIe 1.0 x16
Length	226 mm	no data
Width	1-slot	no data
Supplementary power connectors	1x 6-pin	no data

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	GDDR3
Maximum RAM amount	256 MB	512 MB
Memory bus width	256 Bit	128 Bit
Memory clock speed	500 MHz	600 MHz
Memory bandwidth	32 GB/s	19.2 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

2x DVI, 1x S-Video

No outputs

API compatibility

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

DirectX	9.0c (9_3)	11.1 (10_0)
Shader Model	3.0	4.0
OpenGL	2.1	3.3
OpenCL	N/A	1.1
Vulkan	N/A	N/A
CUDA	-	1.1

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.

7800 GT 0.63
+271%

8400M GT 0.17

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.

7800 GT 244
+270%

8400M GT 66

Gaming performance

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

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

2−3

+0%

2−3

+0%

Full HD
Medium Preset

Assassin's Creed Odyssey	3−4 +0%	3−4 +0%
Call of Duty: Modern Warfare	2−3 +0%	2−3 +0%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Hitman 3	4−5 +0%	4−5 +0%
Horizon Zero Dawn	8−9 +0%	8−9 +0%
Shadow of the Tomb Raider	4−5 +0%	4−5 +0%
Watch Dogs: Legion	27−30 +0%	27−30 +0%

Full HD
High Preset

Assassin's Creed Odyssey	3−4 +0%	3−4 +0%
Call of Duty: Modern Warfare	2−3 +0%	2−3 +0%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Hitman 3	4−5 +0%	4−5 +0%
Horizon Zero Dawn	8−9 +0%	8−9 +0%
Shadow of the Tomb Raider	4−5 +0%	4−5 +0%
The Witcher 3: Wild Hunt	9−10 +0%	9−10 +0%
Watch Dogs: Legion	27−30 +0%	27−30 +0%

Full HD
Ultra Preset

Assassin's Creed Odyssey	3−4 +0%	3−4 +0%
Call of Duty: Modern Warfare	2−3 +0%	2−3 +0%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Hitman 3	4−5 +0%	4−5 +0%
Horizon Zero Dawn	8−9 +0%	8−9 +0%
Shadow of the Tomb Raider	4−5 +0%	4−5 +0%
The Witcher 3: Wild Hunt	9−10 +0%	9−10 +0%
Watch Dogs: Legion	27−30 +0%	27−30 +0%

1440p
Ultra Preset

Cyberpunk 2077	0−1	0−1
Hitman 3	6−7 +0%	6−7 +0%
Horizon Zero Dawn	2−3 +0%	2−3 +0%

1440p
Epic Preset

Red Dead Redemption 2

2−3

+0%

2−3

+0%

4K
Ultra Preset

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

4K
Epic Preset

Red Dead Redemption 2

2−3

+0%

2−3

+0%

All in all, in popular games:

there's a draw in 29 tests (100%)

Pros & cons summary

Performance score	0.63	0.17
Recency	11 August 2005	9 May 2007
Maximum RAM amount	256 MB	512 MB
Chip lithography	110 nm	80 nm
Power consumption (TDP)	65 Watt	14 Watt

7800 GT has a 270.6% higher aggregate performance score.

8400M GT, on the other hand, has an age advantage of 1 year, a 100% higher maximum VRAM amount, a 37.5% more advanced lithography process, and 364.3% lower power consumption.

The GeForce 7800 GT is our recommended choice as it beats the GeForce 8400M GT in performance tests.

Be aware that GeForce 7800 GT is a desktop card while GeForce 8400M GT is a notebook one.

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