Radeon RX 7900 GRE vs RX 6600

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Aggregate performance score

We've compared Radeon RX 6600 and Radeon RX 7900 GRE, covering specs and all relevant benchmarks.

RX 6600
2021
8 GB GDDR6, 132 Watt
37.87

RX 7900 GRE outperforms RX 6600 by an impressive 78% based on our aggregate benchmark results.

Primary details

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

Place in the ranking11722
Place by popularity14not in top-100
Cost-effectiveness evaluation65.5467.14
Power efficiency20.5318.51
ArchitectureRDNA 2.0 (2020−2024)RDNA 3.0 (2022−2024)
GPU code nameNavi 23Navi 31
Market segmentDesktopDesktop
Release date13 October 2021 (3 years ago)27 July 2023 (1 year ago)
Launch price (MSRP)$329 $549

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 7900 GRE has 2% better value for money than RX 6600.

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 cores17925120
Core clock speed1626 MHz1287 MHz
Boost clock speed2491 MHz2245 MHz
Number of transistors11,060 million57,700 million
Manufacturing process technology7 nm5 nm
Power consumption (TDP)132 Watt260 Watt
Texture fill rate279.0718.4
Floating-point processing power8.928 TFLOPS45.98 TFLOPS
ROPs64160
TMUs112320
Ray Tracing Cores2880

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 4.0 x8PCIe 4.0 x16
Length190 mm276 mm
Width2-slot2-slot
Supplementary power connectors1x 8-pin2x 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 typeGDDR6GDDR6
Maximum RAM amount8 GB16 GB
Memory bus width128 Bit256 Bit
Memory clock speed1750 MHz2250 MHz
Memory bandwidth224.0 GB/s576.0 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 Connectors1x HDMI, 3x DisplayPort1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI++

API compatibility

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

DirectX12.0 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.56.8
OpenGL4.64.6
OpenCL2.12.2
Vulkan1.21.3

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.

RX 6600 37.87
RX 7900 GRE 67.26
+77.6%

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.

RX 6600 15133
RX 7900 GRE 26880
+77.6%

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.

RX 6600 31774
RX 7900 GRE 67134
+111%

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.

RX 6600 94734
RX 7900 GRE 122732
+29.6%

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.

RX 6600 23366
RX 7900 GRE 54610
+134%

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.

RX 6600 145870
RX 7900 GRE 247366
+69.6%

3DMark Ice Storm GPU

Ice Storm Graphics is an obsolete benchmark, part of 3DMark suite. Ice Storm was used to measure entry level laptops and Windows-based tablets performance. It utilizes DirectX 11 feature level 9 to display a battle between two space fleets near a frozen planet in 1280x720 resolution. Discontinued in January 2020, it is now superseded by 3DMark Night Raid.

RX 6600 545762
RX 7900 GRE 637522
+16.8%

SPECviewperf 12 - specvp12 maya-04

RX 6600 168
RX 7900 GRE 298
+77.9%

SPECviewperf 12 - specvp12 sw-03

RX 6600 186
RX 7900 GRE 299
+60.9%

SPECviewperf 12 - specvp12 snx-02

RX 6600 125
RX 7900 GRE 338
+171%

SPECviewperf 12 - specvp12 catia-04

RX 6600 225
RX 7900 GRE 425
+89.1%

SPECviewperf 12 - specvp12 creo-01

RX 6600 121
RX 7900 GRE 145
+19.9%

SPECviewperf 12 - specvp12 mediacal-01

RX 6600 75
RX 7900 GRE 220
+193%

SPECviewperf 12 - specvp12 showcase-01

RX 6600 112
RX 7900 GRE 221
+98%

SPECviewperf 12 - specvp12 energy-01

RX 6600 22
RX 7900 GRE 40
+84.3%

SPECviewperf 12 - specvp12 3dsmax-05

RX 6600 232
RX 7900 GRE 429
+84.9%

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 HD111
−88.3%
209
+88.3%
1440p56
−134%
131
+134%
4K31
−161%
81
+161%

Cost per frame, $

1080p2.96
−12.8%
2.63
+12.8%
1440p5.88
−40.2%
4.19
+40.2%
4K10.61
−56.6%
6.78
+56.6%
  • RX 7900 GRE has 13% lower cost per frame in 1080p
  • RX 7900 GRE has 40% lower cost per frame in 1440p
  • RX 7900 GRE has 57% lower cost per frame in 4K

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2 111
−48.6%
160−170
+48.6%
Cyberpunk 2077 107
−94.4%
208
+94.4%

Full HD
Medium Preset

Battlefield 5 100−110
−12.5%
110−120
+12.5%
Counter-Strike 2 84
−96.4%
160−170
+96.4%
Cyberpunk 2077 81
−13.6%
92
+13.6%
Forza Horizon 4 225
−116%
487
+116%
Forza Horizon 5 123
−46.3%
180−190
+46.3%
Metro Exodus 140
−6.4%
149
+6.4%
Red Dead Redemption 2 75−80
−64.9%
120−130
+64.9%
Valorant 150−160
−124%
350−400
+124%

Full HD
High Preset

Battlefield 5 100−110
−12.5%
110−120
+12.5%
Counter-Strike 2 68
−143%
160−170
+143%
Cyberpunk 2077 69
−14.5%
79
+14.5%
Dota 2 141
−16.3%
164
+16.3%
Far Cry 5 62
−61.3%
100
+61.3%
Fortnite 170−180
−59.9%
270−280
+59.9%
Forza Horizon 4 182
−121%
403
+121%
Forza Horizon 5 98
−83.7%
180−190
+83.7%
Grand Theft Auto V 137
−19.7%
164
+19.7%
Metro Exodus 98
−40.8%
138
+40.8%
PLAYERUNKNOWN'S BATTLEGROUNDS 200−210
−7%
210−220
+7%
Red Dead Redemption 2 75−80
−64.9%
120−130
+64.9%
The Witcher 3: Wild Hunt 140−150
−24.3%
170−180
+24.3%
Valorant 150−160
−124%
350−400
+124%
World of Tanks 270−280
+0%
270−280
+0%

Full HD
Ultra Preset

Battlefield 5 100−110
−12.5%
110−120
+12.5%
Counter-Strike 2 59
−180%
160−170
+180%
Cyberpunk 2077 56
−32.1%
74
+32.1%
Dota 2 107
−77.6%
190−200
+77.6%
Far Cry 5 95−100
−36.1%
130−140
+36.1%
Forza Horizon 4 157
−125%
353
+125%
Forza Horizon 5 85
−112%
180−190
+112%
PLAYERUNKNOWN'S BATTLEGROUNDS 200−210
−7%
210−220
+7%
Valorant 150−160
−124%
350−400
+124%

1440p
High Preset

Dota 2 64
−103%
130
+103%
Grand Theft Auto V 64
−103%
130
+103%
PLAYERUNKNOWN'S BATTLEGROUNDS 170−180
+0%
170−180
+0%
Red Dead Redemption 2 35−40
−131%
90−95
+131%
World of Tanks 250−260
−97.2%
450−500
+97.2%

1440p
Ultra Preset

Battlefield 5 70−75
−19.2%
85−90
+19.2%
Counter-Strike 2 33
−66.7%
55−60
+66.7%
Cyberpunk 2077 32
−53.1%
49
+53.1%
Far Cry 5 120−130
−26%
160−170
+26%
Forza Horizon 4 101
−150%
252
+150%
Forza Horizon 5 60
−123%
130−140
+123%
Metro Exodus 97
−32%
128
+32%
The Witcher 3: Wild Hunt 65−70
−126%
156
+126%
Valorant 120−130
−145%
300−350
+145%

4K
High Preset

Counter-Strike 2 20
−120%
40−45
+120%
Dota 2 60
−152%
151
+152%
Grand Theft Auto V 60
−152%
151
+152%
Metro Exodus 29
−145%
71
+145%
PLAYERUNKNOWN'S BATTLEGROUNDS 120−130
−64.6%
200−210
+64.6%
Red Dead Redemption 2 24−27
−135%
60−65
+135%
The Witcher 3: Wild Hunt 60
−152%
151
+152%

4K
Ultra Preset

Battlefield 5 45−50
−97.8%
90−95
+97.8%
Counter-Strike 2 24−27
−83.3%
40−45
+83.3%
Cyberpunk 2077 12
−83.3%
22
+83.3%
Dota 2 85
−76.5%
150−160
+76.5%
Far Cry 5 55−60
−81%
100−110
+81%
Fortnite 55−60
−71.4%
95−100
+71.4%
Forza Horizon 4 53
−147%
131
+147%
Forza Horizon 5 29
−186%
80−85
+186%
Valorant 65−70
−169%
170−180
+169%

1440p
High Preset

Counter-Strike 2 30−35
+0%
30−35
+0%

This is how RX 6600 and RX 7900 GRE compete in popular games:

  • RX 7900 GRE is 88% faster in 1080p
  • RX 7900 GRE is 134% faster in 1440p
  • RX 7900 GRE is 161% faster in 4K

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

  • in Forza Horizon 5, with 4K resolution and the Ultra Preset, the RX 7900 GRE is 186% faster.

All in all, in popular games:

  • RX 7900 GRE is ahead in 59 tests (95%)
  • there's a draw in 3 tests (5%)

Pros & cons summary


Performance score 37.87 67.26
Recency 13 October 2021 27 July 2023
Maximum RAM amount 8 GB 16 GB
Chip lithography 7 nm 5 nm
Power consumption (TDP) 132 Watt 260 Watt

RX 6600 has 97% lower power consumption.

RX 7900 GRE, on the other hand, has a 77.6% higher aggregate performance score, an age advantage of 1 year, a 100% higher maximum VRAM amount, and a 40% more advanced lithography process.

The Radeon RX 7900 GRE is our recommended choice as it beats the Radeon RX 6600 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 RX 6600
Radeon RX 6600
AMD Radeon RX 7900 GRE
Radeon RX 7900 GRE

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