Radeon RX 6600M vs GeForce GT 640M LE

Place in the ranking	918	136
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.06	no data
Power efficiency	3.94	24.58
Architecture	Fermi (2010−2014)	RDNA 2.0 (2020−2024)
GPU code name	GF108	Navi 23
Market segment	Laptop	Laptop
Release date	4 May 2012 (12 years ago)	31 May 2021 (3 years ago)
Launch price (MSRP)	$849.99	no data

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	Up to 384	1792
Core clock speed	Up to 500 MHz	2068 MHz
Boost clock speed	no data	2416 MHz
Number of transistors	585 million	11,060 million
Manufacturing process technology	40 nm	7 nm
Power consumption (TDP)	20 Watt	100 Watt
Texture fill rate	12.05	270.6
Floating-point processing power	0.289 TFLOPS	8.659 TFLOPS
ROPs	4	64
TMUs	16	112
Ray Tracing Cores	no data	28

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	medium sized
Bus support	PCI Express 2.0, PCI Express 3.0	no data
Interface	PCIe 2.0 x16	PCIe 4.0 x8
Supplementary power connectors	no data	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	DDR3\DDR5	GDDR6
Maximum RAM amount	2 GB	8 GB
Memory bus width	128bit	128 Bit
Memory clock speed	785 MHz	1750 MHz
Memory bandwidth	Up to 28.8 GB/s	224.0 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	No outputs
HDMI	+	-
HDCP	+	-
Maximum VGA resolution	Up to 2048x1536	no data

Supported technologies

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

3D Blu-Ray	+	-
Optimus	+	-

API compatibility

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

DirectX	12 API	12 Ultimate (12_2)
Shader Model	5.1	6.5
OpenGL	4.5	4.6
OpenCL	1.1	2.1
Vulkan	N/A	1.3
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.

GT 640M LE 1.84

RX 6600M 35.86
+1849%

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.

GT 640M LE 709

RX 6600M 13819
+1849%

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

GT 640M LE 1259

RX 6600M 31868
+2431%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

GT 640M LE 5788

RX 6600M 72686
+1156%

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:

900p	19 −1742%	350−400 +1742%
Full HD	20 −395%	99 +395%
1440p	2−3 −2550%	53 +2550%
4K	1−2 −3000%	31 +3000%

Cost per frame, $

1080p	42.50	no data
1440p	425.00	no data
4K	849.99	no data

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

4−5

−2650%

110
+2650%

Full HD
Medium Preset

Assassin's Creed Odyssey	7−8 −1443%	108 +1443%
Battlefield 5	1−2 −11400%	110−120 +11400%
Call of Duty: Modern Warfare	5−6 −1340%	70−75 +1340%
Cyberpunk 2077	4−5 −2150%	90 +2150%
Far Cry 5	3−4 −2500%	75−80 +2500%
Far Cry New Dawn	5−6 −1680%	85−90 +1680%
Forza Horizon 4	7−8 −2500%	180−190 +2500%
Hitman 3	6−7 −1150%	75−80 +1150%
Horizon Zero Dawn	16−18 −788%	150−160 +788%
Red Dead Redemption 2	4−5 −2025%	85−90 +2025%
Shadow of the Tomb Raider	9−10 −1311%	120−130 +1311%
Watch Dogs: Legion	35−40 −251%	120−130 +251%

Full HD
High Preset

Assassin's Creed Odyssey	7−8 −2743%	199 +2743%
Battlefield 5	1−2 −11400%	110−120 +11400%
Call of Duty: Modern Warfare	5−6 −1340%	70−75 +1340%
Cyberpunk 2077	4−5 −1700%	72 +1700%
Far Cry 5	3−4 −2500%	75−80 +2500%
Far Cry New Dawn	5−6 −1680%	85−90 +1680%
Forza Horizon 4	7−8 −2500%	180−190 +2500%
Hitman 3	6−7 −1150%	75−80 +1150%
Horizon Zero Dawn	16−18 −788%	150−160 +788%
Red Dead Redemption 2	4−5 −2025%	85−90 +2025%
Shadow of the Tomb Raider	9−10 −1822%	173 +1822%
The Witcher 3: Wild Hunt	12−14 −517%	70−75 +517%
Watch Dogs: Legion	35−40 −251%	120−130 +251%

Full HD
Ultra Preset

Assassin's Creed Odyssey	7−8 −1029%	79 +1029%
Call of Duty: Modern Warfare	5−6 −1340%	70−75 +1340%
Cyberpunk 2077	4−5 −1425%	61 +1425%
Far Cry 5	3−4 −2500%	75−80 +2500%
Forza Horizon 4	7−8 −2300%	168 +2300%
Hitman 3	6−7 −1150%	75−80 +1150%
Horizon Zero Dawn	16−18 −688%	134 +688%
Shadow of the Tomb Raider	9−10 −1600%	153 +1600%
The Witcher 3: Wild Hunt	12−14 −608%	85 +608%
Watch Dogs: Legion	35−40 −68.6%	59 +68.6%

Full HD
Epic Preset

Red Dead Redemption 2

4−5

−2025%

85−90
+2025%

1440p
High Preset

Battlefield 5	2−3 −3300%	65−70 +3300%
Far Cry New Dawn	3−4 −1700%	50−55 +1700%

1440p
Ultra Preset

Assassin's Creed Odyssey	1−2 −5000%	51 +5000%
Call of Duty: Modern Warfare	1−2 −4000%	40−45 +4000%
Cyberpunk 2077	1−2 −3500%	36 +3500%
Far Cry 5	2−3 −1950%	40−45 +1950%
Hitman 3	7−8 −543%	45−50 +543%
Horizon Zero Dawn	5−6 −1860%	98 +1860%
The Witcher 3: Wild Hunt	1−2 −6100%	62 +6100%
Watch Dogs: Legion	10−11 −1710%	180−190 +1710%

1440p
Epic Preset

Red Dead Redemption 2

5−6

−1120%

60−65
+1120%

4K
High Preset

Far Cry New Dawn

1−2

−2800%

27−30
+2800%

4K
Ultra Preset

Assassin's Creed Odyssey	2−3 −1350%	29 +1350%
Assassin's Creed Valhalla	1−2 −2600%	27 +2600%
Call of Duty: Modern Warfare	0−1	21−24
Far Cry 5	1−2 −1900%	20−22 +1900%
Watch Dogs: Legion	0−1	21

4K
Epic Preset

Red Dead Redemption 2

3−4

−933%

30−35
+933%

Full HD
Medium Preset

Assassin's Creed Valhalla	95 +0%	95 +0%
Metro Exodus	110−120 +0%	110−120 +0%

Full HD
High Preset

Assassin's Creed Valhalla	79 +0%	79 +0%
Metro Exodus	110−120 +0%	110−120 +0%

Full HD
Ultra Preset

Assassin's Creed Valhalla

+0%

1440p
Ultra Preset

Assassin's Creed Valhalla	52 +0%	52 +0%
Forza Horizon 4	200−210 +0%	200−210 +0%
Metro Exodus	85 +0%	85 +0%
Shadow of the Tomb Raider	100 +0%	100 +0%

4K
High Preset

Battlefield 5	35−40 +0%	35−40 +0%
Hitman 3	27−30 +0%	27−30 +0%
Horizon Zero Dawn	170−180 +0%	170−180 +0%
Metro Exodus	40−45 +0%	40−45 +0%
The Witcher 3: Wild Hunt	44 +0%	44 +0%

4K
Ultra Preset

Cyberpunk 2077	14 +0%	14 +0%
Forza Horizon 4	74 +0%	74 +0%
Shadow of the Tomb Raider	52 +0%	52 +0%

This is how GT 640M LE and RX 6600M compete in popular games:

RX 6600M is 1742% faster in 900p
RX 6600M is 395% faster in 1080p
RX 6600M is 2550% faster in 1440p
RX 6600M is 3000% faster in 4K

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

in Battlefield 5, with 1080p resolution and the Medium Preset, the RX 6600M is 11400% faster.

All in all, in popular games:

RX 6600M is ahead in 53 tests (76%)
there's a draw in 17 tests (24%)

Pros & cons summary

Performance score	1.84	35.86
Recency	4 May 2012	31 May 2021
Maximum RAM amount	2 GB	8 GB
Chip lithography	40 nm	7 nm
Power consumption (TDP)	20 Watt	100 Watt

GT 640M LE has 400% lower power consumption.

RX 6600M, on the other hand, has a 1848.9% higher aggregate performance score, an age advantage of 9 years, a 300% higher maximum VRAM amount, and a 471.4% more advanced lithography process.

The Radeon RX 6600M is our recommended choice as it beats the GeForce GT 640M LE in performance tests.

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