RTX A400 vs Radeon 660M

Place in the ranking	331	420
Place by popularity	not in top-100	not in top-100
Power efficiency	27.94	15.46
Architecture	RDNA 2.0 (2020−2024)	Ampere (2020−2024)
GPU code name	Rembrandt+	GA107
Market segment	Laptop	Workstation
Release date	3 January 2023 (1 year ago)	16 April 2024 (less than a 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	384	768
Core clock speed	1500 MHz	727 MHz
Boost clock speed	1900 MHz	1762 MHz
Number of transistors	13,100 million	8,700 million
Manufacturing process technology	6 nm	8 nm
Power consumption (TDP)	40 Watt	50 Watt
Texture fill rate	45.60	42.29
Floating-point processing power	1.459 TFLOPS	2.706 TFLOPS
ROPs	16	16
TMUs	24	24
Tensor Cores	no data	24
Ray Tracing Cores	6	6

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 4.0 x8	PCIe 4.0 x8
Length	no data	163 mm
Width	no data	1-slot
Supplementary power connectors	None	None

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	System Shared	GDDR6
Maximum RAM amount	System Shared	4 GB
Memory bus width	System Shared	64 Bit
Memory clock speed	System Shared	1500 MHz
Memory bandwidth	no data	96 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

Portable Device Dependent

4x mini-DisplayPort 1.4a

API compatibility

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

DirectX	12 Ultimate (12_2)	12 Ultimate (12_2)
Shader Model	6.7	6.7
OpenGL	4.6	4.6
OpenCL	2.0	3.0
Vulkan	1.3	1.3
CUDA	-	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.

Radeon 660M 16.31
+44.6%

RTX A400 11.28

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.

Radeon 660M 6285
+44.6%

RTX A400 4346

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

25
+56.3%

16−18

−56.3%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

24
+50%

16−18

−50%

Full HD
Medium Preset

Assassin's Creed Odyssey	21−24 +64.3%	14−16 −64.3%
Assassin's Creed Valhalla	26 +62.5%	16−18 −62.5%
Battlefield 5	30−33 +66.7%	18−20 −66.7%
Call of Duty: Modern Warfare	20−22 +66.7%	12−14 −66.7%
Cyberpunk 2077	20 +66.7%	12−14 −66.7%
Far Cry 5	21−24 +64.3%	14−16 −64.3%
Far Cry New Dawn	27−30 +50%	18−20 −50%
Forza Horizon 4	65−70 +62.5%	40−45 −62.5%
Hitman 3	21 +50%	14−16 −50%
Horizon Zero Dawn	50−55 +54.3%	35−40 −54.3%
Metro Exodus	30−35 +47.6%	21−24 −47.6%
Red Dead Redemption 2	27−30 +50%	18−20 −50%
Shadow of the Tomb Raider	30−35 +52.4%	21−24 −52.4%
Watch Dogs: Legion	60−65 +55%	40−45 −55%

Full HD
High Preset

Assassin's Creed Odyssey	21−24 +64.3%	14−16 −64.3%
Assassin's Creed Valhalla	19 +58.3%	12−14 −58.3%
Battlefield 5	30−33 +66.7%	18−20 −66.7%
Call of Duty: Modern Warfare	20−22 +66.7%	12−14 −66.7%
Cyberpunk 2077	14 +55.6%	9−10 −55.6%
Far Cry 5	21−24 +64.3%	14−16 −64.3%
Far Cry New Dawn	27−30 +50%	18−20 −50%
Forza Horizon 4	65−70 +62.5%	40−45 −62.5%
Hitman 3	21 +50%	14−16 −50%
Horizon Zero Dawn	50−55 +54.3%	35−40 −54.3%
Metro Exodus	30−35 +47.6%	21−24 −47.6%
Red Dead Redemption 2	27−30 +50%	18−20 −50%
Shadow of the Tomb Raider	33 +57.1%	21−24 −57.1%
The Witcher 3: Wild Hunt	24−27 +62.5%	16−18 −62.5%
Watch Dogs: Legion	60−65 +55%	40−45 −55%

Full HD
Ultra Preset

Assassin's Creed Odyssey	21−24 +64.3%	14−16 −64.3%
Assassin's Creed Valhalla	14−16 +55.6%	9−10 −55.6%
Call of Duty: Modern Warfare	20−22 +66.7%	12−14 −66.7%
Cyberpunk 2077	14−16 +50%	10−11 −50%
Far Cry 5	21−24 +64.3%	14−16 −64.3%
Forza Horizon 4	65−70 +62.5%	40−45 −62.5%
Hitman 3	18−20 +58.3%	12−14 −58.3%
Horizon Zero Dawn	22 +57.1%	14−16 −57.1%
Shadow of the Tomb Raider	27 +50%	18−20 −50%
The Witcher 3: Wild Hunt	15 +50%	10−11 −50%
Watch Dogs: Legion	60−65 +55%	40−45 −55%

Full HD
Epic Preset

Red Dead Redemption 2

27−30
+50%

18−20

−50%

1440p
High Preset

Battlefield 5	18−20 +58.3%	12−14 −58.3%
Far Cry New Dawn	14−16 +50%	10−11 −50%

1440p
Ultra Preset

Assassin's Creed Odyssey	10−11 +66.7%	6−7 −66.7%
Assassin's Creed Valhalla	6−7 +50%	4−5 −50%
Call of Duty: Modern Warfare	10−11 +66.7%	6−7 −66.7%
Cyberpunk 2077	5−6 +66.7%	3−4 −66.7%
Far Cry 5	10−12 +57.1%	7−8 −57.1%
Forza Horizon 4	40−45 +59.3%	27−30 −59.3%
Hitman 3	12−14 +62.5%	8−9 −62.5%
Horizon Zero Dawn	20−22 +66.7%	12−14 −66.7%
Metro Exodus	14−16 +55.6%	9−10 −55.6%
Shadow of the Tomb Raider	12−14 +50%	8−9 −50%
The Witcher 3: Wild Hunt	9−10 +50%	6−7 −50%
Watch Dogs: Legion	60−65 +55%	40−45 −55%

1440p
Epic Preset

Red Dead Redemption 2

16−18
+60%

10−11

−60%

4K
High Preset

Battlefield 5	9−10 +50%	6−7 −50%
Far Cry New Dawn	7−8 +75%	4−5 −75%
Hitman 3	6−7 +50%	4−5 −50%
Horizon Zero Dawn	40−45 +51.9%	27−30 −51.9%
Metro Exodus	8−9 +60%	5−6 −60%
The Witcher 3: Wild Hunt	7−8 +75%	4−5 −75%

4K
Ultra Preset

Assassin's Creed Odyssey	6−7 +50%	4−5 −50%
Assassin's Creed Valhalla	4−5 +100%	2−3 −100%
Call of Duty: Modern Warfare	4−5 +100%	2−3 −100%
Cyberpunk 2077	1−2	0−1
Far Cry 5	5−6 +66.7%	3−4 −66.7%
Forza Horizon 4	12−14 +50%	8−9 −50%
Shadow of the Tomb Raider	6−7 +50%	4−5 −50%
Watch Dogs: Legion	3−4 +50%	2−3 −50%