Radeon RX 6400 vs Pro Vega 20

Place in the ranking	377	279
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	53.19
Power efficiency	9.98	26.90
Architecture	GCN 5.0 (2017−2020)	RDNA 2.0 (2020−2024)
GPU code name	Vega 12	Navi 24
Market segment	Mobile workstation	Desktop
Release date	14 November 2018 (5 years ago)	19 January 2022 (2 years ago)
Launch price (MSRP)	no data	$159

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	1280	768
Core clock speed	815 MHz	1923 MHz
Boost clock speed	1283 MHz	2321 MHz
Number of transistors	no data	5,400 million
Manufacturing process technology	14 nm	6 nm
Power consumption (TDP)	100 Watt	53 Watt
Texture fill rate	102.6	111.4
Floating-point processing power	3.284 TFLOPS	3.565 TFLOPS
ROPs	32	32
TMUs	80	48
Ray Tracing Cores	no data	12

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	large	no data
Interface	PCIe 3.0 x16	PCIe 4.0 x4
Width	no data	1-slot
Supplementary power connectors	1x 6-pin + 1x 8-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	HBM2	GDDR6
Maximum RAM amount	4 GB	4 GB
Memory bus width	1024 Bit	64 Bit
Memory clock speed	740 MHz	2000 MHz
Memory bandwidth	189.4 GB/s	128.0 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	1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI	-	+

API compatibility

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

DirectX	12 (12_1)	12 Ultimate (12_2)
Shader Model	6.3	6.7
OpenGL	4.6	4.6
OpenCL	2.0	2.2
Vulkan	1.2.131	1.3

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.

Pro Vega 20 13.74

RX 6400 19.64
+42.9%

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.

Pro Vega 20 5299

RX 6400 7574
+42.9%

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	60 −41.7%	85−90 +41.7%
4K	41 −34.1%	55−60 +34.1%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

21−24

−42.9%

30−33
+42.9%

Full HD
Medium Preset

Assassin's Creed Odyssey	30−35 −40.6%	45−50 +40.6%
Assassin's Creed Valhalla	21−24 −36.4%	30−33 +36.4%
Battlefield 5	40−45 −36.4%	60−65 +36.4%
Call of Duty: Modern Warfare	27−30 −42.9%	40−45 +42.9%
Cyberpunk 2077	21−24 −42.9%	30−33 +42.9%
Far Cry 5	30−35 −40.6%	45−50 +40.6%
Far Cry New Dawn	51 −37.3%	70−75 +37.3%
Forza Horizon 4	90−95 −33.3%	120−130 +33.3%
Hitman 3	24−27 −34.6%	35−40 +34.6%
Horizon Zero Dawn	70−75 −40.8%	100−105 +40.8%
Metro Exodus	45−50 −41.3%	65−70 +41.3%
Red Dead Redemption 2	35−40 −31.6%	50−55 +31.6%
Shadow of the Tomb Raider	76 −31.6%	100−105 +31.6%
Watch Dogs: Legion	70−75 −35.1%	100−105 +35.1%

Full HD
High Preset

Assassin's Creed Odyssey	30−35 −40.6%	45−50 +40.6%
Assassin's Creed Valhalla	21−24 −36.4%	30−33 +36.4%
Battlefield 5	40−45 −36.4%	60−65 +36.4%
Call of Duty: Modern Warfare	27−30 −42.9%	40−45 +42.9%
Cyberpunk 2077	21−24 −42.9%	30−33 +42.9%
Far Cry 5	30−35 −40.6%	45−50 +40.6%
Far Cry New Dawn	46 −41.3%	65−70 +41.3%
Forza Horizon 4	90−95 −33.3%	120−130 +33.3%
Hitman 3	24−27 −34.6%	35−40 +34.6%
Horizon Zero Dawn	70−75 −40.8%	100−105 +40.8%
Metro Exodus	45−50 −41.3%	65−70 +41.3%
Red Dead Redemption 2	35−40 −31.6%	50−55 +31.6%
Shadow of the Tomb Raider	45−50 −33.3%	60−65 +33.3%
The Witcher 3: Wild Hunt	30−35 −36.4%	45−50 +36.4%
Watch Dogs: Legion	70−75 −35.1%	100−105 +35.1%

Full HD
Ultra Preset

Assassin's Creed Odyssey	30−35 −40.6%	45−50 +40.6%
Assassin's Creed Valhalla	21−24 −36.4%	30−33 +36.4%
Call of Duty: Modern Warfare	27−30 −42.9%	40−45 +42.9%
Cyberpunk 2077	21−24 −42.9%	30−33 +42.9%
Far Cry 5	30−35 −40.6%	45−50 +40.6%
Forza Horizon 4	90−95 −33.3%	120−130 +33.3%
Hitman 3	24−27 −34.6%	35−40 +34.6%
Horizon Zero Dawn	70−75 −40.8%	100−105 +40.8%
Shadow of the Tomb Raider	45−50 −33.3%	60−65 +33.3%
The Witcher 3: Wild Hunt	31 −29%	40−45 +29%
Watch Dogs: Legion	70−75 −35.1%	100−105 +35.1%

Full HD
Epic Preset

Red Dead Redemption 2

35−40

−31.6%

50−55
+31.6%

1440p
High Preset

Battlefield 5	27−30 −29.6%	35−40 +29.6%
Far Cry New Dawn	21−24 −42.9%	30−33 +42.9%

1440p
Ultra Preset

Assassin's Creed Odyssey	14−16 −28.6%	18−20 +28.6%
Assassin's Creed Valhalla	10−11 −40%	14−16 +40%
Call of Duty: Modern Warfare	14−16 −40%	21−24 +40%
Cyberpunk 2077	7−8 −42.9%	10−11 +42.9%
Far Cry 5	16−18 −31.3%	21−24 +31.3%
Forza Horizon 4	70−75 −42.9%	100−105 +42.9%
Hitman 3	16−18 −41.2%	24−27 +41.2%
Horizon Zero Dawn	27−30 −42.9%	40−45 +42.9%
Metro Exodus	21−24 −30.4%	30−33 +30.4%
Shadow of the Tomb Raider	21−24 −30.4%	30−33 +30.4%
The Witcher 3: Wild Hunt	14−16 −28.6%	18−20 +28.6%
Watch Dogs: Legion	85−90 −41.2%	120−130 +41.2%

1440p
Epic Preset

Red Dead Redemption 2

21−24

−36.4%

30−33
+36.4%

4K
High Preset

Battlefield 5	12−14 −38.5%	18−20 +38.5%
Far Cry New Dawn	10−11 −40%	14−16 +40%
Hitman 3	10−11 −40%	14−16 +40%
Horizon Zero Dawn	65−70 −41.8%	95−100 +41.8%
Metro Exodus	12−14 −38.5%	18−20 +38.5%
The Witcher 3: Wild Hunt	12−14 −33.3%	16−18 +33.3%

4K
Ultra Preset

Assassin's Creed Odyssey	8−9 −25%	10−11 +25%
Assassin's Creed Valhalla	6−7 −33.3%	8−9 +33.3%
Call of Duty: Modern Warfare	7−8 −42.9%	10−11 +42.9%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Far Cry 5	7−8 −42.9%	10−11 +42.9%
Forza Horizon 4	18−20 −33.3%	24−27 +33.3%
Shadow of the Tomb Raider	12−14 −38.5%	18−20 +38.5%
Watch Dogs: Legion	5−6 −40%	7−8 +40%

4K
Epic Preset

Red Dead Redemption 2

12−14

−33.3%

16−18
+33.3%

This is how Pro Vega 20 and RX 6400 compete in popular games:

RX 6400 is 42% faster in 1080p
RX 6400 is 34% faster in 4K

Pros & cons summary

Performance score	13.74	19.64
Recency	14 November 2018	19 January 2022
Chip lithography	14 nm	6 nm
Power consumption (TDP)	100 Watt	53 Watt

RX 6400 has a 42.9% higher aggregate performance score, an age advantage of 3 years, a 133.3% more advanced lithography process, and 88.7% lower power consumption.

The Radeon RX 6400 is our recommended choice as it beats the Radeon Pro Vega 20 in performance tests.

Be aware that Radeon Pro Vega 20 is a mobile workstation card while Radeon RX 6400 is a desktop one.

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