Radeon RX 6600 vs HD 7770

Place in the ranking	598	110
Place by popularity	not in top-100	15
Cost-effectiveness evaluation	1.33	67.91
Power efficiency	4.91	20.76
Architecture	GCN 1.0 (2011−2020)	RDNA 2.0 (2020−2024)
GPU code name	Cape Verde	Navi 23
Market segment	Desktop	Desktop
Release date	15 February 2012 (12 years ago)	13 October 2021 (3 years ago)
Launch price (MSRP)	$159	$329

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6600 has 5006% better value for money than HD 7770.

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	640	1792
Core clock speed	1000 MHz	1626 MHz
Boost clock speed	no data	2491 MHz
Number of transistors	1,500 million	11,060 million
Manufacturing process technology	28 nm	7 nm
Power consumption (TDP)	80 Watt	132 Watt
Texture fill rate	40.00	279.0
Floating-point processing power	1.28 TFLOPS	8.928 TFLOPS
ROPs	16	64
TMUs	40	112
Ray Tracing Cores	no data	28

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).

Interface	PCIe 3.0 x16	PCIe 4.0 x8
Length	210 mm	190 mm
Width	2-slot	2-slot
Supplementary power connectors	1x 6-pin	1x 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 type	GDDR5	GDDR6
Maximum RAM amount	2 GB	8 GB
Memory bus width	128 Bit	128 Bit
Memory clock speed	1125 MHz	1750 MHz
Memory bandwidth	72 GB/s	224.0 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 Connectors	1x DVI, 1x HDMI, 2x mini-DisplayPort	1x HDMI, 3x DisplayPort
Eyefinity	+	-
HDMI	+	+

API compatibility

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

DirectX	12 (11_1)	12.0 Ultimate (12_2)
Shader Model	5.1	6.5
OpenGL	4.6	4.6
OpenCL	1.2	2.1
Vulkan	1.2.131	1.2

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 7770 5.63

RX 6600 39.31
+598%

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 7770 2173

RX 6600 15164
+598%

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 7770 3098

RX 6600 31774
+926%

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 7770 14073

RX 6600 94734
+573%

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 7770 2825

RX 6600 23366
+727%

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.

HD 7770 18782

RX 6600 145870
+677%

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:

900p	47 −538%	300−350 +538%
Full HD	46 −148%	114 +148%
1440p	8−9 −613%	57 +613%
4K	4−5 −675%	31 +675%

Cost per frame, $

1080p	3.46	2.89
1440p	19.88	5.77
4K	39.75	10.61

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

9−10

−1089%

107
+1089%

Full HD
Medium Preset

Assassin's Creed Odyssey	14−16 −453%	80−85 +453%
Assassin's Creed Valhalla	6−7 −1783%	113 +1783%
Battlefield 5	14−16 −740%	120−130 +740%
Call of Duty: Modern Warfare	12−14 −558%	75−80 +558%
Cyberpunk 2077	9−10 −911%	91 +911%
Far Cry 5	12−14 −608%	85−90 +608%
Far Cry New Dawn	16−18 −506%	95−100 +506%
Forza Horizon 4	35−40 −431%	190−200 +431%
Hitman 3	12−14 −725%	99 +725%
Horizon Zero Dawn	35−40 −366%	160−170 +366%
Metro Exodus	14−16 −800%	120−130 +800%
Red Dead Redemption 2	14−16 −513%	90−95 +513%
Shadow of the Tomb Raider	20−22 −615%	140−150 +615%
Watch Dogs: Legion	45−50 −169%	120−130 +169%

Full HD
High Preset

Assassin's Creed Odyssey	14−16 −453%	80−85 +453%
Assassin's Creed Valhalla	6−7 −1433%	92 +1433%
Battlefield 5	14−16 −740%	120−130 +740%
Call of Duty: Modern Warfare	12−14 −558%	75−80 +558%
Cyberpunk 2077	9−10 −711%	73 +711%
Far Cry 5	12−14 −608%	85−90 +608%
Far Cry New Dawn	16−18 −506%	95−100 +506%
Forza Horizon 4	35−40 −431%	190−200 +431%
Hitman 3	12−14 −692%	95 +692%
Horizon Zero Dawn	35−40 −366%	160−170 +366%
Metro Exodus	14−16 −800%	120−130 +800%
Red Dead Redemption 2	14−16 −513%	90−95 +513%
Shadow of the Tomb Raider	20−22 −810%	182 +810%
The Witcher 3: Wild Hunt	18−20 −326%	80−85 +326%
Watch Dogs: Legion	45−50 −169%	120−130 +169%

Full HD
Ultra Preset

Assassin's Creed Odyssey	14−16 −453%	80−85 +453%
Assassin's Creed Valhalla	6−7 −1200%	78 +1200%
Call of Duty: Modern Warfare	12−14 −558%	75−80 +558%
Cyberpunk 2077	9−10 −556%	59 +556%
Far Cry 5	12−14 −608%	85−90 +608%
Forza Horizon 4	35−40 −431%	190−200 +431%
Hitman 3	12−14 −617%	86 +617%
Horizon Zero Dawn	35−40 −306%	142 +306%
Shadow of the Tomb Raider	20−22 −685%	157 +685%
The Witcher 3: Wild Hunt	18−20 −374%	90 +374%
Watch Dogs: Legion	45−50 −20.8%	58 +20.8%

Full HD
Epic Preset

Red Dead Redemption 2

14−16

−513%

90−95
+513%

1440p
High Preset

Battlefield 5	10−12 −582%	75−80 +582%
Far Cry New Dawn	9−10 −567%	60−65 +567%

1440p
Ultra Preset

Assassin's Creed Odyssey	5−6 −740%	40−45 +740%
Assassin's Creed Valhalla	1−2 −5100%	52 +5100%
Call of Duty: Modern Warfare	5−6 −820%	45−50 +820%
Cyberpunk 2077	3−4 −1033%	34 +1033%
Far Cry 5	6−7 −650%	45−50 +650%
Forza Horizon 4	14−16 −1367%	220−230 +1367%
Hitman 3	10−11 −440%	54 +440%
Horizon Zero Dawn	12−14 −750%	102 +750%
Metro Exodus	4−5 −2325%	97 +2325%
Shadow of the Tomb Raider	0−1	101
The Witcher 3: Wild Hunt	5−6 −1040%	55−60 +1040%
Watch Dogs: Legion	35−40 −433%	190−200 +433%

1440p
Epic Preset

Red Dead Redemption 2

10−11

−570%

65−70
+570%

4K
High Preset

Battlefield 5	4−5 −875%	35−40 +875%
Far Cry New Dawn	4−5 −725%	30−35 +725%
Hitman 3	2−3 −1700%	36 +1700%
Horizon Zero Dawn	12−14 −1417%	180−190 +1417%
Metro Exodus	2−3 −2400%	50−55 +2400%
The Witcher 3: Wild Hunt	2−3 −2100%	44 +2100%

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	3−4 −667%	21−24 +667%
Forza Horizon 4	5−6 −980%	50−55 +980%
Watch Dogs: Legion	2−3 −950%	21 +950%

4K
Epic Preset

Red Dead Redemption 2

6−7

−483%

35−40
+483%

4K
Ultra Preset

Shadow of the Tomb Raider

+0%

This is how HD 7770 and RX 6600 compete in popular games:

RX 6600 is 538% faster in 900p
RX 6600 is 148% faster in 1080p
RX 6600 is 613% faster in 1440p
RX 6600 is 675% faster in 4K

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

in Assassin's Creed Valhalla, with 1440p resolution and the Ultra Preset, the RX 6600 is 5100% faster.

All in all, in popular games:

RX 6600 is ahead in 69 tests (99%)
there's a draw in 1 test (1%)

Pros & cons summary

Performance score	5.63	39.31
Recency	15 February 2012	13 October 2021
Maximum RAM amount	2 GB	8 GB
Chip lithography	28 nm	7 nm
Power consumption (TDP)	80 Watt	132 Watt

HD 7770 has 65% lower power consumption.

RX 6600, on the other hand, has a 598.2% higher aggregate performance score, an age advantage of 9 years, a 300% higher maximum VRAM amount, and a 300% more advanced lithography process.

The Radeon RX 6600 is our recommended choice as it beats the Radeon HD 7770 in performance tests.

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