Radeon RX 6600 vs HD 6790

Aggregate performance score

We've compared Radeon HD 6790 and Radeon RX 6600, covering specs and all relevant benchmarks.

HD 6790
2011
1 GB GDDR5, 150 Watt
4.20

RX 6600 outperforms HD 6790 by a whopping 836% based on our aggregate benchmark results.

Primary details

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

Place in the ranking684113
Place by popularitynot in top-10013
Cost-effectiveness evaluation0.8667.39
Power efficiency1.9220.42
ArchitectureTeraScale 2 (2009−2015)RDNA 2.0 (2020−2024)
GPU code nameBartsNavi 23
Market segmentDesktopDesktop
Release date4 April 2011 (13 years ago)13 October 2021 (3 years ago)
Launch price (MSRP)$149 $329

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6600 has 7736% better value for money than HD 6790.

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 cores8001792
Core clock speed840 MHz1626 MHz
Boost clock speedno data2491 MHz
Number of transistors1,700 million11,060 million
Manufacturing process technology40 nm7 nm
Power consumption (TDP)150 Watt132 Watt
Texture fill rate33.60279.0
Floating-point processing power1.344 TFLOPS8.928 TFLOPS
ROPs1664
TMUs40112
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).

InterfacePCIe 2.0 x16PCIe 4.0 x8
Length198 mm190 mm
Width2-slot2-slot
Supplementary power connectors2x 6-pin1x 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 typeGDDR5GDDR6
Maximum RAM amount1 GB8 GB
Memory bus width256 Bit128 Bit
Memory clock speed1050 MHz1750 MHz
Memory bandwidth134.4 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
HDMI++

API compatibility

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

DirectX11.2 (11_0)12.0 Ultimate (12_2)
Shader Model5.06.5
OpenGL4.44.6
OpenCL1.22.1
VulkanN/A1.2

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.

HD 6790 4.20
RX 6600 39.31
+836%

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.

HD 6790 1618
RX 6600 15147
+836%

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.

HD 6790 2887
RX 6600 31774
+1001%

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.

HD 6790 13637
RX 6600 94734
+595%

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.

HD 6790 2150
RX 6600 23366
+987%

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:

900p52
−765%
450−500
+765%
Full HD60
−88.3%
113
+88.3%
1440p6−7
−850%
57
+850%
4K3−4
−933%
31
+933%

Cost per frame, $

1080p2.482.91
1440p24.835.77
4K49.6710.61

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 7−8
−1429%
107
+1429%

Full HD
Medium Preset

Assassin's Creed Odyssey 12−14
−592%
80−85
+592%
Assassin's Creed Valhalla 3−4
−3667%
113
+3667%
Battlefield 5 10−11
−1160%
120−130
+1160%
Call of Duty: Modern Warfare 9−10
−778%
75−80
+778%
Cyberpunk 2077 7−8
−1200%
91
+1200%
Far Cry 5 9−10
−844%
85−90
+844%
Far Cry New Dawn 12−14
−708%
95−100
+708%
Forza Horizon 4 24−27
−664%
190−200
+664%
Hitman 3 10−11
−890%
99
+890%
Horizon Zero Dawn 27−30
−482%
160−170
+482%
Metro Exodus 8−9
−1475%
120−130
+1475%
Red Dead Redemption 2 10−12
−736%
90−95
+736%
Shadow of the Tomb Raider 16−18
−794%
140−150
+794%
Watch Dogs: Legion 40−45
−200%
120−130
+200%

Full HD
High Preset

Assassin's Creed Odyssey 12−14
−592%
80−85
+592%
Assassin's Creed Valhalla 3−4
−2967%
92
+2967%
Battlefield 5 10−11
−1160%
120−130
+1160%
Call of Duty: Modern Warfare 9−10
−778%
75−80
+778%
Cyberpunk 2077 7−8
−943%
73
+943%
Far Cry 5 9−10
−844%
85−90
+844%
Far Cry New Dawn 12−14
−708%
95−100
+708%
Forza Horizon 4 24−27
−664%
190−200
+664%
Hitman 3 10−11
−850%
95
+850%
Horizon Zero Dawn 27−30
−482%
160−170
+482%
Metro Exodus 8−9
−1475%
120−130
+1475%
Red Dead Redemption 2 10−12
−736%
90−95
+736%
Shadow of the Tomb Raider 16−18
−1038%
182
+1038%
The Witcher 3: Wild Hunt 16−18
−406%
80−85
+406%
Watch Dogs: Legion 40−45
−200%
120−130
+200%

Full HD
Ultra Preset

Assassin's Creed Odyssey 12−14
−592%
80−85
+592%
Assassin's Creed Valhalla 3−4
−2500%
78
+2500%
Call of Duty: Modern Warfare 9−10
−778%
75−80
+778%
Cyberpunk 2077 7−8
−743%
59
+743%
Far Cry 5 9−10
−844%
85−90
+844%
Forza Horizon 4 24−27
−664%
190−200
+664%
Hitman 3 10−11
−760%
86
+760%
Horizon Zero Dawn 27−30
−407%
142
+407%
Shadow of the Tomb Raider 16−18
−881%
157
+881%
The Witcher 3: Wild Hunt 16−18
−463%
90
+463%
Watch Dogs: Legion 40−45
−34.9%
58
+34.9%

Full HD
Epic Preset

Red Dead Redemption 2 10−12
−736%
90−95
+736%

1440p
High Preset

Battlefield 5 8−9
−838%
75−80
+838%
Far Cry New Dawn 6−7
−900%
60−65
+900%

1440p
Ultra Preset

Assassin's Creed Odyssey 4−5
−950%
40−45
+950%
Call of Duty: Modern Warfare 3−4
−1433%
45−50
+1433%
Cyberpunk 2077 2−3
−1600%
34
+1600%
Far Cry 5 5−6
−800%
45−50
+800%
Forza Horizon 4 6−7
−3567%
220−230
+3567%
Hitman 3 9−10
−500%
54
+500%
Horizon Zero Dawn 10−11
−920%
102
+920%
Metro Exodus 0−1 97
The Witcher 3: Wild Hunt 3−4
−1800%
55−60
+1800%
Watch Dogs: Legion 24−27
−638%
190−200
+638%

1440p
Epic Preset

Red Dead Redemption 2 8−9
−738%
65−70
+738%

4K
High Preset

Battlefield 5 3−4
−1200%
35−40
+1200%
Far Cry New Dawn 3−4
−1000%
30−35
+1000%
Hitman 3 0−1 36
Horizon Zero Dawn 1−2
−18100%
180−190
+18100%
Metro Exodus 1−2
−4900%
50−55
+4900%

4K
Ultra Preset

Assassin's Creed Odyssey 3−4
−800%
27−30
+800%
Assassin's Creed Valhalla 2−3
−1100%
24
+1100%
Call of Duty: Modern Warfare 2−3
−1150%
24−27
+1150%
Cyberpunk 2077 0−1 14
Far Cry 5 2−3
−1050%
21−24
+1050%
Forza Horizon 4 3−4
−1700%
50−55
+1700%
Watch Dogs: Legion 1−2
−2000%
21
+2000%

4K
Epic Preset

Red Dead Redemption 2 5−6
−600%
35−40
+600%

1440p
Ultra Preset

Assassin's Creed Valhalla 52
+0%
52
+0%
Shadow of the Tomb Raider 101
+0%
101
+0%

4K
High Preset

The Witcher 3: Wild Hunt 44
+0%
44
+0%

4K
Ultra Preset

Shadow of the Tomb Raider 53
+0%
53
+0%

This is how HD 6790 and RX 6600 compete in popular games:

  • RX 6600 is 765% faster in 900p
  • RX 6600 is 88% faster in 1080p
  • RX 6600 is 850% faster in 1440p
  • RX 6600 is 933% faster in 4K

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

  • in Horizon Zero Dawn, with 4K resolution and the High Preset, the RX 6600 is 18100% faster.

All in all, in popular games:

  • RX 6600 is ahead in 65 tests (94%)
  • there's a draw in 4 tests (6%)

Pros & cons summary


Performance score 4.20 39.31
Recency 4 April 2011 13 October 2021
Maximum RAM amount 1 GB 8 GB
Chip lithography 40 nm 7 nm
Power consumption (TDP) 150 Watt 132 Watt

RX 6600 has a 836% higher aggregate performance score, an age advantage of 10 years, a 700% higher maximum VRAM amount, a 471.4% more advanced lithography process, and 13.6% lower power consumption.

The Radeon RX 6600 is our recommended choice as it beats the Radeon HD 6790 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 HD 6790
Radeon HD 6790
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.


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4.3 9743 votes

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Questions & comments

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