Radeon RX 640 vs GeForce GTX 1660 Ti

Place in the ranking	161	615
Place by popularity	24	not in top-100
Cost-effectiveness evaluation	43.74	no data
Power efficiency	19.30	7.52
Architecture	Turing (2018−2022)	GCN 4.0 (2016−2020)
GPU code name	TU116	Polaris 23
Market segment	Desktop	Laptop
Release date	22 February 2019 (5 years ago)	13 May 2019 (5 years ago)
Launch price (MSRP)	$279	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	1536	640
Core clock speed	1500 MHz	1082 MHz
Boost clock speed	1770 MHz	1218 MHz
Number of transistors	6,600 million	2,200 million
Manufacturing process technology	12 nm	14 nm
Power consumption (TDP)	120 Watt	50 Watt
Texture fill rate	169.9	48.72
Floating-point processing power	5.437 TFLOPS	1.559 TFLOPS
ROPs	48	16
TMUs	96	40

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	no data	large
Interface	PCIe 3.0 x16	PCIe 3.0 x8
Length	229 mm	no data
Width	2-slot	no data
Supplementary power connectors	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	GDDR6	GDDR5
Maximum RAM amount	6 GB	2 GB
Memory bus width	192 Bit	64 Bit
Memory clock speed	1500 MHz	1500 MHz
Memory bandwidth	288.0 GB/s	48 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	1x DVI, 1x HDMI, 1x DisplayPort	No outputs
HDMI	+	-

Supported technologies

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

FreeSync

API compatibility

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

DirectX	12 (12_1)	12 (12_0)
Shader Model	6.5	6.4
OpenGL	4.6	4.6
OpenCL	1.2	2.0
Vulkan	1.2.131	1.2.131
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.

GTX 1660 Ti 33.58
+516%

RX 640 5.45

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.

GTX 1660 Ti 12907
+516%

RX 640 2096

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.

GTX 1660 Ti 22892
+337%

RX 640 5235

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.

GTX 1660 Ti 61217
+333%

RX 640 14141

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

GTX 1660 Ti 16024
+358%

RX 640 3499

3DMark Cloud Gate GPU

Cloud Gate is an outdated DirectX 11 feature level 10 benchmark that was used for home PCs and basic notebooks. It displays a few scenes of some weird space teleportation device launching spaceships into unknown, using fixed resolution of 1280x720. Just like Ice Storm benchmark, it has been discontinued in January 2020 and replaced by 3DMark Night Raid.

GTX 1660 Ti 93095
+367%

RX 640 19946

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	103 +296%	26 −296%
1440p	60 +567%	9−10 −567%
4K	39 +550%	6−7 −550%

Cost per frame, $

1080p	2.71	no data
1440p	4.65	no data
4K	7.15	no data

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	65−70 +509%	10−12 −509%
Cyberpunk 2077	78 +609%	10−12 −609%

Full HD
Medium Preset

Battlefield 5	90 +429%	16−18 −429%
Counter-Strike 2	65−70 +509%	10−12 −509%
Cyberpunk 2077	36 +227%	10−12 −227%
Forza Horizon 4	156 +578%	21−24 −578%
Forza Horizon 5	94 +755%	10−12 −755%
Metro Exodus	98 +476%	17 −476%
Red Dead Redemption 2	119 +358%	26 −358%
Valorant	161 +847%	16−18 −847%

Full HD
High Preset

Battlefield 5	123 +624%	16−18 −624%
Counter-Strike 2	65−70 +509%	10−12 −509%
Cyberpunk 2077	28 +155%	10−12 −155%
Dota 2	140 +678%	18 −678%
Far Cry 5	118 +293%	30 −293%
Fortnite	134 +319%	30−35 −319%
Forza Horizon 4	127 +452%	21−24 −452%
Forza Horizon 5	72 +555%	10−12 −555%
Grand Theft Auto V	119 +561%	18−20 −561%
Metro Exodus	68 +423%	12−14 −423%
PLAYERUNKNOWN'S BATTLEGROUNDS	180−190 +307%	45−50 −307%
Red Dead Redemption 2	45 +181%	16−18 −181%
The Witcher 3: Wild Hunt	110−120 +576%	16−18 −576%
Valorant	82 +382%	16−18 −382%
World of Tanks	270−280 +216%	85−90 −216%

Full HD
Ultra Preset

Battlefield 5	78 +359%	16−18 −359%
Counter-Strike 2	65−70 +509%	10−12 −509%
Cyberpunk 2077	23 +109%	10−12 −109%
Dota 2	168 +243%	49 −243%
Far Cry 5	90−95 +246%	24−27 −246%
Forza Horizon 4	110 +378%	21−24 −378%
Forza Horizon 5	66 +500%	10−12 −500%
PLAYERUNKNOWN'S BATTLEGROUNDS	98 +113%	45−50 −113%
Valorant	118 +594%	16−18 −594%

1440p
High Preset

Dota 2	62 +1140%	5−6 −1140%
Grand Theft Auto V	62 +933%	6−7 −933%
PLAYERUNKNOWN'S BATTLEGROUNDS	170−180 +415%	30−35 −415%
Red Dead Redemption 2	28 +600%	4−5 −600%
World of Tanks	210−220 +451%	35−40 −451%

1440p
Ultra Preset

Battlefield 5	63 +600%	9−10 −600%
Counter-Strike 2	30−35 +6.5%	30−35 −6.5%
Cyberpunk 2077	13 +160%	5−6 −160%
Far Cry 5	100−110 +864%	10−12 −864%
Forza Horizon 4	78 +767%	9−10 −767%
Forza Horizon 5	47 +488%	8−9 −488%
Metro Exodus	65 +1200%	5−6 −1200%
The Witcher 3: Wild Hunt	55−60 +588%	8−9 −588%
Valorant	82 +447%	14−16 −447%

4K
High Preset

Counter-Strike 2	30−35 +560%	5−6 −560%
Dota 2	56 +229%	16−18 −229%
Grand Theft Auto V	56 +229%	16−18 −229%
Metro Exodus	21 +2000%	1−2 −2000%
PLAYERUNKNOWN'S BATTLEGROUNDS	100−110 +563%	16−18 −563%
Red Dead Redemption 2	19 +533%	3−4 −533%
The Witcher 3: Wild Hunt	56 +229%	16−18 −229%

4K
Ultra Preset

Battlefield 5	31 +675%	4−5 −675%
Counter-Strike 2	30−35 +560%	5−6 −560%
Cyberpunk 2077	6 +200%	2−3 −200%
Dota 2	94 +453%	16−18 −453%
Far Cry 5	45−50 +683%	6−7 −683%
Fortnite	45−50 +800%	5−6 −800%
Forza Horizon 4	43 +760%	5−6 −760%
Forza Horizon 5	24 +700%	3−4 −700%
Valorant	41 +720%	5−6 −720%

This is how GTX 1660 Ti and RX 640 compete in popular games:

GTX 1660 Ti is 296% faster in 1080p
GTX 1660 Ti is 567% faster in 1440p
GTX 1660 Ti is 550% 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 GTX 1660 Ti is 2000% faster.

All in all, in popular games:

Without exception, GTX 1660 Ti surpassed RX 640 in all 62 of our tests.

Pros & cons summary

Performance score	33.58	5.45
Recency	22 February 2019	13 May 2019
Maximum RAM amount	6 GB	2 GB
Chip lithography	12 nm	14 nm
Power consumption (TDP)	120 Watt	50 Watt