Radeon RX 6600 vs R9 390

VS

Aggregate performance score

We've compared Radeon R9 390 and Radeon RX 6600, covering specs and all relevant benchmarks.

R9 390
2015
0 MB GDDR5, 275 Watt
23.11

RX 6600 outperforms R9 390 by an impressive 70% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking242113
Place by popularitynot in top-10013
Cost-effectiveness evaluation11.7767.37
Power efficiency5.7620.41
ArchitectureGCN 2.0 (2013−2017)RDNA 2.0 (2020−2024)
GPU code nameGrenadaNavi 23
Market segmentDesktopDesktop
Designreferenceno data
Release date18 June 2015 (9 years ago)13 October 2021 (3 years ago)
Launch price (MSRP)$329 $329

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6600 has 472% better value for money than R9 390.

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 cores25601792
Core clock speedno data1626 MHz
Boost clock speed1000 MHz2491 MHz
Number of transistors6,200 million11,060 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)275 Watt132 Watt
Texture fill rate160.0279.0
Floating-point processing power5.12 TFLOPS8.928 TFLOPS
ROPs6464
TMUs160112
Ray Tracing Coresno data28

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 supportPCIe 3.0no data
InterfacePCIe 3.0 x16PCIe 4.0 x8
Length275 mm190 mm
Width2-slot2-slot
Supplementary power connectors1 x 6-pin, 1 x 8-pin1x 8-pin
Bridgeless CrossFire+-

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 typeGDDR5GDDR6
High bandwidth memory (HBM)-no data
Maximum RAM amount0 MB8 GB
Memory bus width512 Bit128 Bit
Memory clock speed1000 MHz1750 MHz
Memory bandwidth384 GB/s224.0 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 Connectors2x DVI, 1x HDMI, 1x DisplayPort1x HDMI, 3x DisplayPort
Eyefinity+-
Number of Eyefinity displays6no data
HDMI++
DisplayPort support+-

Supported technologies

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

CrossFire+-
FreeSync+-
PowerTune+-
TrueAudio+-
VCE+-
DDMA audio+no data

API compatibility

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

DirectXDirectX® 1212.0 Ultimate (12_2)
Shader Model6.36.5
OpenGL4.64.6
OpenCL2.02.1
Vulkan+1.2
Mantle+-

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.

R9 390 23.11
RX 6600 39.32
+70.1%

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.

R9 390 8904
RX 6600 15147
+70.1%

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.

R9 390 12730
RX 6600 23366
+83.6%

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 HD65−70
−73.8%
113
+73.8%
1440p30−35
−90%
57
+90%
4K18−20
−72.2%
31
+72.2%

Cost per frame, $

1080p5.062.91
1440p10.975.77
4K18.2810.61

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 107
+0%
107
+0%

Full HD
Medium Preset

Assassin's Creed Odyssey 80−85
+0%
80−85
+0%
Assassin's Creed Valhalla 113
+0%
113
+0%
Battlefield 5 120−130
+0%
120−130
+0%
Call of Duty: Modern Warfare 75−80
+0%
75−80
+0%
Cyberpunk 2077 91
+0%
91
+0%
Far Cry 5 85−90
+0%
85−90
+0%
Far Cry New Dawn 95−100
+0%
95−100
+0%
Forza Horizon 4 190−200
+0%
190−200
+0%
Hitman 3 99
+0%
99
+0%
Horizon Zero Dawn 160−170
+0%
160−170
+0%
Metro Exodus 120−130
+0%
120−130
+0%
Red Dead Redemption 2 90−95
+0%
90−95
+0%
Shadow of the Tomb Raider 140−150
+0%
140−150
+0%
Watch Dogs: Legion 120−130
+0%
120−130
+0%

Full HD
High Preset

Assassin's Creed Odyssey 80−85
+0%
80−85
+0%
Assassin's Creed Valhalla 92
+0%
92
+0%
Battlefield 5 120−130
+0%
120−130
+0%
Call of Duty: Modern Warfare 75−80
+0%
75−80
+0%
Cyberpunk 2077 73
+0%
73
+0%
Far Cry 5 85−90
+0%
85−90
+0%
Far Cry New Dawn 95−100
+0%
95−100
+0%
Forza Horizon 4 190−200
+0%
190−200
+0%
Hitman 3 95
+0%
95
+0%
Horizon Zero Dawn 160−170
+0%
160−170
+0%
Metro Exodus 120−130
+0%
120−130
+0%
Red Dead Redemption 2 90−95
+0%
90−95
+0%
Shadow of the Tomb Raider 182
+0%
182
+0%
The Witcher 3: Wild Hunt 80−85
+0%
80−85
+0%
Watch Dogs: Legion 120−130
+0%
120−130
+0%

Full HD
Ultra Preset

Assassin's Creed Odyssey 80−85
+0%
80−85
+0%
Assassin's Creed Valhalla 78
+0%
78
+0%
Call of Duty: Modern Warfare 75−80
+0%
75−80
+0%
Cyberpunk 2077 59
+0%
59
+0%
Far Cry 5 85−90
+0%
85−90
+0%
Forza Horizon 4 190−200
+0%
190−200
+0%
Hitman 3 86
+0%
86
+0%
Horizon Zero Dawn 142
+0%
142
+0%
Shadow of the Tomb Raider 157
+0%
157
+0%
The Witcher 3: Wild Hunt 90
+0%
90
+0%
Watch Dogs: Legion 58
+0%
58
+0%

Full HD
Epic Preset

Red Dead Redemption 2 90−95
+0%
90−95
+0%

1440p
High Preset

Battlefield 5 75−80
+0%
75−80
+0%
Far Cry New Dawn 60−65
+0%
60−65
+0%

1440p
Ultra Preset

Assassin's Creed Odyssey 40−45
+0%
40−45
+0%
Assassin's Creed Valhalla 52
+0%
52
+0%
Call of Duty: Modern Warfare 45−50
+0%
45−50
+0%
Cyberpunk 2077 34
+0%
34
+0%
Far Cry 5 45−50
+0%
45−50
+0%
Forza Horizon 4 220−230
+0%
220−230
+0%
Hitman 3 54
+0%
54
+0%
Horizon Zero Dawn 102
+0%
102
+0%
Metro Exodus 97
+0%
97
+0%
Shadow of the Tomb Raider 101
+0%
101
+0%
The Witcher 3: Wild Hunt 55−60
+0%
55−60
+0%
Watch Dogs: Legion 190−200
+0%
190−200
+0%

1440p
Epic Preset

Red Dead Redemption 2 65−70
+0%
65−70
+0%

4K
High Preset

Battlefield 5 35−40
+0%
35−40
+0%
Far Cry New Dawn 30−35
+0%
30−35
+0%
Hitman 3 36
+0%
36
+0%
Horizon Zero Dawn 180−190
+0%
180−190
+0%
Metro Exodus 50−55
+0%
50−55
+0%
The Witcher 3: Wild Hunt 44
+0%
44
+0%

4K
Ultra Preset

Assassin's Creed Odyssey 27−30
+0%
27−30
+0%
Assassin's Creed Valhalla 24
+0%
24
+0%
Call of Duty: Modern Warfare 24−27
+0%
24−27
+0%
Cyberpunk 2077 14
+0%
14
+0%
Far Cry 5 21−24
+0%
21−24
+0%
Forza Horizon 4 50−55
+0%
50−55
+0%
Shadow of the Tomb Raider 53
+0%
53
+0%
Watch Dogs: Legion 21
+0%
21
+0%

4K
Epic Preset

Red Dead Redemption 2 35−40
+0%
35−40
+0%

This is how R9 390 and RX 6600 compete in popular games:

  • RX 6600 is 74% faster in 1080p
  • RX 6600 is 90% faster in 1440p
  • RX 6600 is 72% faster in 4K

All in all, in popular games:

  • there's a draw in 72 tests (100%)

Pros & cons summary


Performance score 23.11 39.32
Recency 18 June 2015 13 October 2021
Chip lithography 28 nm 7 nm
Power consumption (TDP) 275 Watt 132 Watt

RX 6600 has a 70.1% higher aggregate performance score, an age advantage of 6 years, a 300% more advanced lithography process, and 108.3% lower power consumption.

The Radeon RX 6600 is our recommended choice as it beats the Radeon R9 390 in performance tests.


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

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AMD Radeon R9 390
Radeon R9 390
AMD Radeon RX 6600
Radeon RX 6600

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.2 567 votes

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4.3 9756 votes

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Questions & comments

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