Radeon RX 6600 vs R9 380X

Place in performance ranking	308	105
Place by popularity	not in top-100	12
Cost-Effectiveness Evaluation	7.08	34.19
Architecture	GCN 3.0 (2014−2017)	Navi / RDNA2 (2020−2022)
GPU code name	Antigua	Navi 23
Market segment	Desktop	Desktop
Design	reference	no data
Release date	19 November 2015 (8 years ago)	13 October 2021 (2 years ago)
Launch price (MSRP)	$229	$329
Current price	$11.81 (0.1x MSRP)	$358 (1.1x MSRP)

Cost-Effectiveness Evaluation

Performance to price ratio. The higher, the better.

RX 6600 has 383% better value for money than R9 380X.

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	2048	1792
Compute units	32	no data
Core clock speed	no data	2044 MHz
Boost clock speed	970 MHz	2491 MHz
Number of transistors	5,000 million	11,060 million
Manufacturing process technology	28 nm	7 nm
Power consumption (TDP)	190 Watt	132 Watt
Texture fill rate	124.2	279.0
Floating-point performance	3,973 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).

Bus support	PCIe 3.0	no data
Interface	PCIe 3.0 x16	PCIe 4.0 x8
Length	221 mm	190 mm
Width	2-slot	2-slot
Form factor	full height / full length	no data
Supplementary power connectors	2 x 6-pin	1x 8-pin
Bridgeless CrossFire	1	no data

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
High bandwidth memory (HBM)	-	no data
Maximum RAM amount	4 GB	8 GB
Memory bus width	256 Bit	128 Bit
Memory clock speed	970 MHz	14500 MHz
Memory bandwidth	182.4 GB/s	224.0 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	2x DVI, 1x HDMI, 1x DisplayPort	1x HDMI, 3x DisplayPort
Eyefinity	1	no data
Number of Eyefinity displays	6	no data
HDMI	+	+
DisplayPort support	+	no data

Supported GPU Technologies

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

AppAcceleration	-	no data
CrossFire	1	no data
Enduro	-	no data
FRTC	1	no data
FreeSync	1	no data
HD3D	+	no data
LiquidVR	1	no data
PowerTune	+	no data
TrueAudio	+	no data
ZeroCore	+	no data
VCE	+	no data
DDMA audio	+	no data

API Compatibility

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

DirectX	DirectX® 12	12.0 Ultimate (12_2)
Shader Model	6.3	6.5
OpenGL	4.5	4.6
OpenCL	2.0	2.1
Vulkan	+	1.2
Mantle	+	no data

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.

R9 380X 16.04

RX 6600 39.06
+144%

RX 6600 outperforms R9 380X by 144% based on our aggregated 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%

R9 380X 6208

RX 6600 15121
+144%

RX 6600 outperforms R9 380X by 144% in Passmark.

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.

Benchmark coverage: 14%

R9 380X 9510

RX 6600 23366
+146%

RX 6600 outperforms R9 380X by 146% in 3DMark Fire Strike Graphics.

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	45−50 −153%	114 +153%
1440p	21−24 −176%	58 +176%
4K	12−14 −167%	32 +167%

Pros & Cons Summary

Performance score	16.04	39.06
Recency	19 November 2015	13 October 2021
Cost	$229	$329
Maximum RAM amount	4 GB	8 GB
Chip lithography	28 nm	7 nm
Power consumption (TDP)	190 Watt	132 Watt