Arc B580 vs GeForce 945M

Place in the ranking	610	101
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	93.61
Power efficiency	5.03	14.76
Architecture	Maxwell (2014−2017)	Xe2 (2025)
GPU code name	GM107	BMG-G21
Market segment	Laptop	Desktop
Release date	27 October 2015 (9 years ago)	16 January 2025 (recently)
Launch price (MSRP)	no data	$249

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	640	2560
Core clock speed	928 MHz	2670 MHz
Boost clock speed	1020 MHz	2670 MHz
Number of transistors	1,870 million	19,600 million
Manufacturing process technology	28 nm	5 nm
Power consumption (TDP)	75 Watt	190 Watt
Texture fill rate	40.80	427.2
Floating-point processing power	1.306 TFLOPS	13.67 TFLOPS
ROPs	16	80
TMUs	40	160
Tensor Cores	no data	160
Ray Tracing Cores	no data	20

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	medium sized	no data
Bus support	PCI Express 3.0	no data
Interface	MXM-B (3.0)	PCIe 4.0 x8
Length	no data	272 mm
Width	no data	2-slot
Supplementary power connectors	None	1x 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	DDR3	GDDR6
Maximum RAM amount	2 GB	12 GB
Memory bus width	128 Bit	192 Bit
Memory clock speed	900 MHz	2375 MHz
Memory bandwidth	28.8 GB/s	456.0 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 2.1a, 3x DisplayPort 2.1
HDMI	-	+

Supported technologies

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

GPU Boost	2.0	no data
Optimus	+	-
GameWorks	+	-

API compatibility

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

DirectX	12 (11_0)	12 Ultimate (12_2)
Shader Model	5.1	6.6
OpenGL	4.5	4.6
OpenCL	1.2	3.0
Vulkan	1.1.126	1.4
CUDA	+	-

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 945M 5.48

Arc B580 40.74
+643%

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 945M 2108

Arc B580 15662
+643%

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	27 −359%	124 +359%
1440p	9−10 −667%	69 +667%
4K	5−6 −760%	43 +760%

Cost per frame, $

1080p	no data	2.01
1440p	no data	3.61
4K	no data	5.79

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	12−14 −1000%	143 +1000%
Cyberpunk 2077	10−12 −627%	80−85 +627%
Elden Ring	14−16 −614%	100−105 +614%

Full HD
Medium Preset

Battlefield 5	16−18 −524%	100−110 +524%
Counter-Strike 2	12−14 −800%	117 +800%
Cyberpunk 2077	10−12 −627%	80−85 +627%
Forza Horizon 4	21−24 −639%	170−180 +639%
Metro Exodus	12−14 −646%	95−100 +646%
Red Dead Redemption 2	16−18 −394%	75−80 +394%
Valorant	14−16 −993%	160−170 +993%

Full HD
High Preset

Battlefield 5	16−18 −524%	100−110 +524%
Counter-Strike 2	12−14 −700%	104 +700%
Cyberpunk 2077	10−12 −627%	80−85 +627%
Dota 2	18−20 −678%	140 +678%
Elden Ring	14−16 −929%	140−150 +929%
Far Cry 5	24−27 −165%	69 +165%
Fortnite	30−35 −450%	170−180 +450%
Forza Horizon 4	21−24 −639%	170−180 +639%
Grand Theft Auto V	18−20 −622%	130−140 +622%
Metro Exodus	12−14 −177%	36 +177%
PLAYERUNKNOWN'S BATTLEGROUNDS	45−50 −341%	200−210 +341%
Red Dead Redemption 2	16−18 −394%	75−80 +394%
The Witcher 3: Wild Hunt	18 −711%	140−150 +711%
Valorant	14−16 −993%	160−170 +993%
World of Tanks	85−90 −217%	270−280 +217%

Full HD
Ultra Preset

Battlefield 5	16−18 −524%	100−110 +524%
Counter-Strike 2	12−14 −631%	95 +631%
Cyberpunk 2077	10−12 −627%	80−85 +627%
Dota 2	18−20 −622%	130−140 +622%
Far Cry 5	24−27 −281%	95−100 +281%
Forza Horizon 4	21−24 −639%	170−180 +639%
PLAYERUNKNOWN'S BATTLEGROUNDS	45−50 −341%	200−210 +341%
Valorant	14−16 −993%	160−170 +993%

1440p
High Preset

Dota 2	5−6 −1280%	69 +1280%
Elden Ring	6−7 −1300%	80−85 +1300%
Grand Theft Auto V	5−6 −600%	35−40 +600%
PLAYERUNKNOWN'S BATTLEGROUNDS	35−40 −643%	260−270 +643%
Red Dead Redemption 2	4−5 −925%	40−45 +925%
World of Tanks	35−40 −562%	250−260 +562%

1440p
Ultra Preset

Battlefield 5	9−10 −722%	70−75 +722%
Counter-Strike 2	9−10 −578%	61 +578%
Cyberpunk 2077	4−5 −575%	27−30 +575%
Far Cry 5	10−12 −1100%	130−140 +1100%
Forza Horizon 4	8−9 −588%	55−60 +588%
Metro Exodus	5−6 −1640%	85−90 +1640%
The Witcher 3: Wild Hunt	7−8 −614%	50−55 +614%
Valorant	14−16 −767%	130−140 +767%

4K
High Preset

Dota 2	16−18 −359%	78 +359%
Elden Ring	3−4 −1233%	40−45 +1233%
Grand Theft Auto V	16−18 −606%	120−130 +606%
Metro Exodus	1−2 −4500%	46 +4500%
PLAYERUNKNOWN'S BATTLEGROUNDS	16−18 −731%	130−140 +731%
Red Dead Redemption 2	3−4 −800%	27−30 +800%
The Witcher 3: Wild Hunt	16−18 −606%	120−130 +606%

4K
Ultra Preset

Battlefield 5	5−6 −860%	45−50 +860%
Cyberpunk 2077	2−3 −600%	14−16 +600%
Dota 2	16−18 −606%	120−130 +606%
Far Cry 5	6−7 −917%	60−65 +917%
Fortnite	5−6 −1080%	55−60 +1080%
Forza Horizon 4	4−5 −575%	27−30 +575%
Valorant	5−6 −1280%	65−70 +1280%

4K
High Preset

Counter-Strike 2

40−45

+0%

40−45

+0%

4K
Ultra Preset

Counter-Strike 2

40−45

+0%

40−45

+0%

This is how GeForce 945M and Arc B580 compete in popular games:

Arc B580 is 359% faster in 1080p
Arc B580 is 667% faster in 1440p
Arc B580 is 760% faster in 4K

Here's the range of performance differences observed across popular games:

in Metro Exodus, with 4K resolution and the High Preset, the Arc B580 is 4500% faster.

All in all, in popular games:

Arc B580 is ahead in 41 test (95%)
there's a draw in 2 tests (5%)

Pros & cons summary

Performance score	5.48	40.74
Recency	27 October 2015	16 January 2025
Maximum RAM amount	2 GB	12 GB
Chip lithography	28 nm	5 nm
Power consumption (TDP)	75 Watt	190 Watt

GeForce 945M has 153.3% lower power consumption.

Arc B580, on the other hand, has a 643.4% higher aggregate performance score, an age advantage of 9 years, a 500% higher maximum VRAM amount, and a 460% more advanced lithography process.

The Arc B580 is our recommended choice as it beats the GeForce 945M in performance tests.

Be aware that GeForce 945M is a notebook card while Arc B580 is a desktop one.

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