Radeon RX 6900 vs GeForce MX450

Place in the ranking	461	22
Place by popularity	not in top-100	not in top-100
Power efficiency	26.88	18.82
Architecture	Turing (2018−2022)	RDNA 2.0 (2020−2024)
GPU code name	N17S-G5 / GP107-670-A1	Navi 21
Market segment	Laptop	Desktop
Release date	1 August 2020 (4 years ago)	28 October 2020 (4 years 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	896	4608
Core clock speed	1395 MHz	no data
Boost clock speed	1575 MHz	2105 MHz
Number of transistors	4,700 million	23,000 million
Manufacturing process technology	12 nm	7 nm
Power consumption (TDP)	25 Watt (12 - 29 Watt TGP)	255 Watt
Texture fill rate	100.8	606.2
Floating-point processing power	3.226 TFLOPS	19.4 TFLOPS
ROPs	32	64
TMUs	64	288

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 x4	PCIe 4.0 x16
Width	no data	2-slot
Supplementary power connectors	None	2x 8-pin

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	GDDR5, GDDR6	GDDR6
Maximum RAM amount	2 GB	16 GB
Memory bus width	64 Bit	256 Bit
Memory clock speed	10000 MHz	16 GB/s
Memory bandwidth	64.03 GB/s	512.0 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, 2x DisplayPort, 1x USB Type-C
HDMI	-	+

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Optimus

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	6.5	6.5
OpenGL	4.6	4.6
OpenCL	1.2	2.0
Vulkan	1.2	1.2
CUDA	7.5	-

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.

GeForce MX450 9.74

RX 6900 69.54
+614%

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.

GeForce MX450 3746

RX 6900 26739
+614%

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	29 −590%	200−210 +590%
1440p	17 −606%	120−130 +606%
4K	26 −592%	180−190 +592%

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	18−20 −567%	120−130 +567%
Cyberpunk 2077	32 −588%	220−230 +588%
Elden Ring	29 −590%	200−210 +590%

Full HD
Medium Preset

Battlefield 5	30−35 −588%	220−230 +588%
Counter-Strike 2	18−20 −567%	120−130 +567%
Cyberpunk 2077	18 −567%	120−130 +567%
Forza Horizon 4	50 −600%	350−400 +600%
Metro Exodus	34 −606%	240−250 +606%
Red Dead Redemption 2	45 −567%	300−310 +567%
Valorant	35−40 −594%	250−260 +594%

Full HD
High Preset

Battlefield 5	30−35 −588%	220−230 +588%
Counter-Strike 2	8 −588%	55−60 +588%
Cyberpunk 2077	11 −582%	75−80 +582%
Dota 2	54 −548%	350−400 +548%
Elden Ring	28 −579%	190−200 +579%
Far Cry 5	58 −590%	400−450 +590%
Fortnite	55−60 −602%	400−450 +602%
Forza Horizon 4	40 −600%	280−290 +600%
Grand Theft Auto V	38 −611%	270−280 +611%
Metro Exodus	16 −588%	110−120 +588%
PLAYERUNKNOWN'S BATTLEGROUNDS	75−80 −558%	500−550 +558%
Red Dead Redemption 2	5 −600%	35−40 +600%
The Witcher 3: Wild Hunt	27−30 −590%	200−210 +590%
Valorant	22 −582%	150−160 +582%
World of Tanks	140−150 −609%	1000−1050 +609%

Full HD
Ultra Preset

Battlefield 5	30−35 −588%	220−230 +588%
Counter-Strike 2	18−20 −567%	120−130 +567%
Cyberpunk 2077	6 −567%	40−45 +567%
Dota 2	81 −579%	550−600 +579%
Far Cry 5	40−45 −600%	280−290 +600%
Forza Horizon 4	30 −600%	210−220 +600%
PLAYERUNKNOWN'S BATTLEGROUNDS	75−80 −558%	500−550 +558%
Valorant	35−40 −594%	250−260 +594%

1440p
High Preset

Dota 2	11 −582%	75−80 +582%
Elden Ring	14−16 −579%	95−100 +579%
Grand Theft Auto V	11 −582%	75−80 +582%
PLAYERUNKNOWN'S BATTLEGROUNDS	45−50 −538%	300−310 +538%
Red Dead Redemption 2	8−9 −588%	55−60 +588%
World of Tanks	70−75 −543%	450−500 +543%

1440p
Ultra Preset

Battlefield 5	18−20 −584%	130−140 +584%
Counter-Strike 2	10−11 −600%	70−75 +600%
Cyberpunk 2077	7−8 −543%	45−50 +543%
Far Cry 5	21−24 −567%	140−150 +567%
Forza Horizon 4	18 −567%	120−130 +567%
Metro Exodus	18−20 −567%	120−130 +567%
The Witcher 3: Wild Hunt	12−14 −608%	85−90 +608%
Valorant	24−27 −608%	170−180 +608%

4K
High Preset

Counter-Strike 2	4−5 −575%	27−30 +575%
Dota 2	20−22 −600%	140−150 +600%
Elden Ring	6−7 −567%	40−45 +567%
Grand Theft Auto V	20−22 −600%	140−150 +600%
Metro Exodus	5−6 −600%	35−40 +600%
PLAYERUNKNOWN'S BATTLEGROUNDS	27−30 −579%	190−200 +579%
Red Dead Redemption 2	6−7 −567%	40−45 +567%
The Witcher 3: Wild Hunt	20−22 −600%	140−150 +600%

4K
Ultra Preset

Battlefield 5	9−10 −567%	60−65 +567%
Counter-Strike 2	4−5 −575%	27−30 +575%
Cyberpunk 2077	2−3 −600%	14−16 +600%
Dota 2	32 −588%	220−230 +588%
Far Cry 5	12−14 −608%	85−90 +608%
Fortnite	10−11 −600%	70−75 +600%
Forza Horizon 4	12−14 −608%	85−90 +608%
Valorant	10−11 −600%	70−75 +600%

This is how GeForce MX450 and RX 6900 compete in popular games:

RX 6900 is 590% faster in 1080p
RX 6900 is 606% faster in 1440p
RX 6900 is 592% faster in 4K

Pros & cons summary

Performance score	9.74	69.54
Recency	1 August 2020	28 October 2020
Maximum RAM amount	2 GB	16 GB
Chip lithography	12 nm	7 nm
Power consumption (TDP)	25 Watt	255 Watt

GeForce MX450 has 920% lower power consumption.

RX 6900, on the other hand, has a 614% higher aggregate performance score, an age advantage of 2 months, a 700% higher maximum VRAM amount, and a 71.4% more advanced lithography process.

The Radeon RX 6900 is our recommended choice as it beats the GeForce MX450 in performance tests.

Be aware that GeForce MX450 is a notebook card while Radeon RX 6900 is a desktop one.

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