Radeon 820M vs RTX A4000

Place in the ranking	88	688
Place by popularity	not in top-100	not in top-100
Power efficiency	25.64	27.15
Architecture	Ampere (2020−2025)	RDNA 3.5 (2025−2026)
GPU code name	GA104	Krackan Point 2
Market segment	Workstation	Laptop
Release date	12 April 2021 (5 years ago)	March 2025 (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. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.

Pipelines / CUDA cores	6144	128
Core clock speed	735 MHz	400 MHz
Boost clock speed	1560 MHz	2800 MHz
Number of transistors	17,400 million	no data
Manufacturing process technology	8 nm	4 nm
Power consumption (TDP)	140 Watt	15 Watt
Texture fill rate	299.5	22.40
Floating-point processing power	19.17 TFLOPS	no data
ROPs	96	4
TMUs	192	8
Tensor Cores	192	no data
Ray Tracing Cores	48	2
L0 Cache	no data	32 KB
L1 Cache	6 MB	32 KB
L2 Cache	4 MB	1024 KB

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	medium sized
Interface	PCIe 4.0 x16	PCIe 4.0 x8
Length	241 mm	no data
Width	1-slot	no data
Supplementary power connectors	1x 6-pin	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	GDDR6	System Shared
Maximum RAM amount	16 GB	System Shared
Memory bus width	256 Bit	System Shared
Memory clock speed	1750 MHz	System Shared
Memory bandwidth	448.0 GB/s	no data
Shared memory	-	+
Resizable BAR	+	-

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors

4x DisplayPort 1.4a

Portable Device Dependent

API and SDK support

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	6.8
OpenGL	4.6	4.6
OpenCL	3.0	2.1
Vulkan	1.3	1.4
CUDA	8.6	-
DLSS	+	-

Synthetic benchmarks

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.

RTX A4000 46.02
+782%

Radeon 820M 5.22

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.

RTX A4000 19292
+782%

Samples: 2613

Radeon 820M 2187
Samples: 109

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

85−90
+750%

FPS performance in popular games

Full HD
Low

Counter-Strike 2	24−27	24−27
Cyberpunk 2077	10−12	10−12
Hogwarts Legacy	10−11	10−11
Resident Evil 4 Remake	8−9	8−9

Full HD
Medium

Battlefield 5	21−24	21−24
Counter-Strike 2	24−27	24−27
Cyberpunk 2077	10−12	10−12
Far Cry 5	16−18	16−18
Fortnite	30−35	30−35
Forza Horizon 4	24−27	24−27
Hogwarts Legacy	10−11	10−11
PLAYERUNKNOWN'S BATTLEGROUNDS	20−22	20−22
Valorant	60−65	60−65

Full HD
High

Battlefield 5	21−24	21−24
Counter-Strike 2	24−27	24−27
Counter-Strike: Global Offensive	90−95	90−95
Cyberpunk 2077	10−12	10−12
Far Cry 5	16−18	16−18
Fortnite	30−35	30−35
Forza Horizon 4	24−27	24−27
Grand Theft Auto V	16	16
Hogwarts Legacy	10−11	10−11
Metro Exodus	10−11	10−11
PLAYERUNKNOWN'S BATTLEGROUNDS	20−22	20−22
The Witcher 3: Wild Hunt	14−16	14−16
Valorant	60−65	60−65

Full HD
Ultra

Battlefield 5	21−24	21−24
Cyberpunk 2077	10−12	10−12
Far Cry 5	16−18	16−18
Forza Horizon 4	24−27	24−27
Hogwarts Legacy	10−11	10−11
PLAYERUNKNOWN'S BATTLEGROUNDS	20−22	20−22
The Witcher 3: Wild Hunt	14−16	14−16

Full HD
Epic

Fortnite

30−35

1440p
High

Counter-Strike 2	10−11	10−11
Counter-Strike: Global Offensive	40−45	40−45
Grand Theft Auto V	5−6	5−6
Metro Exodus	4−5	4−5
Valorant	50−55	50−55

1440p
Ultra

Battlefield 5	6−7	6−7
Cyberpunk 2077	4−5	4−5
Far Cry 5	10−11	10−11
Forza Horizon 4	12−14	12−14
Hogwarts Legacy	5−6	5−6
The Witcher 3: Wild Hunt	7−8	7−8

1440p
Epic

Fortnite

10−11

4K
High

Grand Theft Auto V	16−18	16−18
The Witcher 3: Wild Hunt	2−3	2−3
Valorant	21−24	21−24

4K
Ultra

Battlefield 5	3−4	3−4
Cyberpunk 2077	1−2	1−2
Far Cry 5	4−5	4−5
Forza Horizon 4	7−8	7−8
Hogwarts Legacy	1−2	1−2
PLAYERUNKNOWN'S BATTLEGROUNDS	5−6	5−6