Radeon RX 6400 vs RX Vega 64

Place in performance ranking	117	269
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	55.35	12.30
Architecture	Vega (2017−2021)	RDNA 2.0 (2020−2022)
GPU code name	Vega	Navi 24
Market segment	Desktop	Desktop
Release date	14 August 2017 (6 years ago)	19 January 2022 (2 years ago)
Launch price (MSRP)	$499	$159
Current price	$125 (0.3x MSRP)	$376 (2.4x MSRP)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX Vega 64 has 350% better value for money than RX 6400.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	4096	768
Core clock speed	1630 MHz	no data
Boost clock speed	1546 MHz	2321 MHz
Number of transistors	12,500 million	5,400 million
Manufacturing process technology	14 nm	6 nm
Power consumption (TDP)	295 Watt	53 Watt
Texture fill rate	395.8	111.4
Floating-point performance	13,353 gflops	no data

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 3.0 x16	PCIe 4.0 x4
Length	279 mm	no data
Width	2-slot	1-slot
Supplementary power connectors	2x 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	8 GB	4 GB
Memory bus width	2048 Bit	64 Bit
Memory clock speed	945 MHz	16 GB/s
Memory bandwidth	483.8 GB/s	128.0 GB/s
Shared memory	-	no data

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	1x HDMI, 3x DisplayPort	1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI	+	+

API compatibility

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

DirectX	12 (12_1)	12 Ultimate (12_2)
Shader Model	6.4	6.6
OpenGL	4.6	4.6
OpenCL	2.0	2.2
Vulkan	1.1.125	1.3

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark performance 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.

RX Vega 64 37.19
+90.5%

RX 6400 19.52

RX Vega 64 outperforms RX 6400 by 91% based on our aggregate benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. 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.

Benchmark coverage: 25%

RX Vega 64 14375
+90.5%

RX 6400 7546

RX Vega 64 outperforms RX 6400 by 90% in Passmark.

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	114 +107%	55−60 −107%
1440p	72 +106%	35−40 −106%
4K	49 +104%	24−27 −104%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

65−70
+117%

30−33

−117%

Full HD
Medium Preset

Assassin's Creed Odyssey	81 +103%	40−45 −103%
Assassin's Creed Valhalla	83 +108%	40−45 −108%
Battlefield 5	186 +95.8%	95−100 −95.8%
Call of Duty: Modern Warfare	68 +94.3%	35−40 −94.3%
Cyberpunk 2077	65−70 +117%	30−33 −117%
Far Cry 5	112 +104%	55−60 −104%
Far Cry New Dawn	108 +96.4%	55−60 −96.4%
Forza Horizon 4	167 +96.5%	85−90 −96.5%
Hitman 3	148 +97.3%	75−80 −97.3%
Horizon Zero Dawn	167 +96.5%	85−90 −96.5%
Metro Exodus	144 +92%	75−80 −92%
Red Dead Redemption 2	116 +93.3%	60−65 −93.3%
Shadow of the Tomb Raider	202 +102%	100−105 −102%
Watch Dogs: Legion	100 +100%	50−55 −100%

Full HD
High Preset

Assassin's Creed Odyssey	68 +94.3%	35−40 −94.3%
Assassin's Creed Valhalla	69 +97.1%	35−40 −97.1%
Battlefield 5	170 +100%	85−90 −100%
Call of Duty: Modern Warfare	121 +102%	60−65 −102%
Cyberpunk 2077	65−70 +117%	30−33 −117%
Far Cry 5	62 +107%	30−33 −107%
Far Cry New Dawn	97 +94%	50−55 −94%
Forza Horizon 4	158 +97.5%	80−85 −97.5%
Hitman 3	77 +92.5%	40−45 −92.5%
Horizon Zero Dawn	140 +100%	70−75 −100%
Metro Exodus	101 +102%	50−55 −102%
Red Dead Redemption 2	103 +106%	50−55 −106%
Shadow of the Tomb Raider	127 +95.4%	65−70 −95.4%
The Witcher 3: Wild Hunt	132 +103%	65−70 −103%
Watch Dogs: Legion	87 +93.3%	45−50 −93.3%

Full HD
Ultra Preset

Assassin's Creed Odyssey	51 +113%	24−27 −113%
Assassin's Creed Valhalla	60 +100%	30−33 −100%
Call of Duty: Modern Warfare	54 +100%	27−30 −100%
Cyberpunk 2077	65−70 +117%	30−33 −117%
Far Cry 5	67 +91.4%	35−40 −91.4%
Forza Horizon 4	128 +96.9%	65−70 −96.9%
Horizon Zero Dawn	100 +100%	50−55 −100%
Metro Exodus	91 +102%	45−50 −102%
The Witcher 3: Wild Hunt	77 +92.5%	40−45 −92.5%
Watch Dogs: Legion	54 +100%	27−30 −100%

Full HD
Epic Preset

Red Dead Redemption 2

89
+97.8%

45−50

−97.8%

1440p
High Preset

Battlefield 5	70−75 +103%	35−40 −103%
Far Cry New Dawn	93 +107%	45−50 −107%
Hitman 3	57 +111%	27−30 −111%
Red Dead Redemption 2	37 +106%	18−20 −106%

1440p
Ultra Preset

Assassin's Creed Odyssey	40−45 +122%	18−20 −122%
Assassin's Creed Valhalla	47 +95.8%	24−27 −95.8%
Call of Duty: Modern Warfare	69 +97.1%	35−40 −97.1%
Cyberpunk 2077	27−30 +107%	14−16 −107%
Far Cry 5	81 +103%	40−45 −103%
Forza Horizon 4	98 +96%	50−55 −96%
Horizon Zero Dawn	80 +100%	40−45 −100%
Metro Exodus	79 +97.5%	40−45 −97.5%
Shadow of the Tomb Raider	100 +100%	50−55 −100%
The Witcher 3: Wild Hunt	50−55 +92.6%	27−30 −92.6%
Watch Dogs: Legion	38 +111%	18−20 −111%

4K
High Preset

Far Cry 5	48 +100%	24−27 −100%
Far Cry New Dawn	52 +92.6%	27−30 −92.6%
Hitman 3	38 +111%	18−20 −111%
Horizon Zero Dawn	45−50 +95.8%	24−27 −95.8%
Shadow of the Tomb Raider	32 +100%	16−18 −100%
The Witcher 3: Wild Hunt	48 +100%	24−27 −100%

4K
Ultra Preset

Assassin's Creed Odyssey	29 +107%	14−16 −107%
Assassin's Creed Valhalla	28 +100%	14−16 −100%
Battlefield 5	59 +96.7%	30−33 −96.7%
Call of Duty: Modern Warfare	45 +114%	21−24 −114%
Cyberpunk 2077	12−14 +100%	6−7 −100%
Forza Horizon 4	66 +120%	30−33 −120%
Horizon Zero Dawn	52 +92.6%	27−30 −92.6%
Metro Exodus	45 +114%	21−24 −114%
Watch Dogs: Legion	21 +110%	10−11 −110%

4K
Epic Preset

Red Dead Redemption 2

31
+93.8%

16−18

−93.8%

This is how RX Vega 64 and RX 6400 compete in popular games:

RX Vega 64 is 107% faster in 1080p
RX Vega 64 is 106% faster in 1440p
RX Vega 64 is 104% faster in 4K

Pros & cons summary

Performance score	37.19	19.52
Recency	14 August 2017	19 January 2022
Cost	$499	$159
Maximum RAM amount	8 GB	4 GB
Chip lithography	14 nm	6 nm
Power consumption (TDP)	295 Watt	53 Watt