Radeon RX 6600 vs GeForce Go 6400

Place in the ranking	1470	114
Place by popularity	not in top-100	13
Cost-effectiveness evaluation	no data	67.40
Power efficiency	no data	20.40
Architecture	Curie (2003−2013)	RDNA 2.0 (2020−2024)
GPU code name	NV44 A2	Navi 23
Market segment	Laptop	Desktop
Release date	1 February 2006 (18 years ago)	13 October 2021 (3 years ago)
Launch price (MSRP)	no data	$329

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	7	1792
Core clock speed	400 MHz	1626 MHz
Boost clock speed	400 MHz	2491 MHz
Number of transistors	75 million	11,060 million
Manufacturing process technology	110 nm	7 nm
Power consumption (TDP)	no data	132 Watt
Texture fill rate	1.600	279.0
Floating-point processing power	no data	8.928 TFLOPS
ROPs	2	64
TMUs	4	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 1.0 x16	PCIe 4.0 x8
Length	no data	190 mm
Width	no data	2-slot
Supplementary power connectors	no data	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	DDR	GDDR6
Maximum RAM amount	32 MB	8 GB
Memory bus width	64 Bit	128 Bit
Memory clock speed	350 MHz	1750 MHz
Memory bandwidth	5.6 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	No outputs	1x HDMI, 3x DisplayPort
HDMI	-	+

API compatibility

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

DirectX	9.0c (9_3)	12.0 Ultimate (12_2)
Shader Model	3.0	6.5
OpenGL	2.1	4.6
OpenCL	N/A	2.1
Vulkan	N/A	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.

Go 6400 0.06

RX 6600 39.31
+65417%

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.

Go 6400 24

RX 6600 15145
+63004%

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	-0−1	113
1440p	-0−1	57
4K	-0−1	31

Cost per frame, $

1080p	no data	2.91
1440p	no data	5.77
4K	no data	10.61

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

2−3

−5250%

107
+5250%

Full HD
Medium Preset

Assassin's Creed Odyssey	3−4 −2667%	80−85 +2667%
Call of Duty: Modern Warfare	2−3 −3850%	75−80 +3850%
Cyberpunk 2077	2−3 −4450%	91 +4450%
Hitman 3	4−5 −2375%	99 +2375%
Horizon Zero Dawn	8−9 −1938%	160−170 +1938%
Shadow of the Tomb Raider	4−5 −3475%	140−150 +3475%
Watch Dogs: Legion	27−30 −361%	120−130 +361%

Full HD
High Preset

Assassin's Creed Odyssey	3−4 −2667%	80−85 +2667%
Call of Duty: Modern Warfare	2−3 −3850%	75−80 +3850%
Cyberpunk 2077	2−3 −3550%	73 +3550%
Hitman 3	4−5 −2275%	95 +2275%
Horizon Zero Dawn	8−9 −1938%	160−170 +1938%
Shadow of the Tomb Raider	4−5 −4450%	182 +4450%
The Witcher 3: Wild Hunt	9−10 −800%	80−85 +800%
Watch Dogs: Legion	27−30 −361%	120−130 +361%

Full HD
Ultra Preset

Assassin's Creed Odyssey	3−4 −2667%	80−85 +2667%
Call of Duty: Modern Warfare	2−3 −3850%	75−80 +3850%
Cyberpunk 2077	2−3 −2850%	59 +2850%
Hitman 3	4−5 −2050%	86 +2050%
Horizon Zero Dawn	8−9 −1675%	142 +1675%
Shadow of the Tomb Raider	4−5 −3825%	157 +3825%
The Witcher 3: Wild Hunt	9−10 −900%	90 +900%
Watch Dogs: Legion	27−30 −107%	58 +107%

1440p
Ultra Preset

Cyberpunk 2077	0−1	34
Hitman 3	6−7 −800%	54 +800%
Horizon Zero Dawn	2−3 −5000%	102 +5000%

1440p
Epic Preset

Red Dead Redemption 2

2−3

−3250%

65−70
+3250%

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −2600%	27−30 +2600%
Assassin's Creed Valhalla	0−1	24

4K
Epic Preset

Red Dead Redemption 2

2−3

−1650%

35−40
+1650%

Full HD
Medium Preset

Assassin's Creed Valhalla	113 +0%	113 +0%
Battlefield 5	120−130 +0%	120−130 +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%
Metro Exodus	120−130 +0%	120−130 +0%
Red Dead Redemption 2	90−95 +0%	90−95 +0%

Full HD
High Preset

Assassin's Creed Valhalla	92 +0%	92 +0%
Battlefield 5	120−130 +0%	120−130 +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%
Metro Exodus	120−130 +0%	120−130 +0%
Red Dead Redemption 2	90−95 +0%	90−95 +0%

Full HD
Ultra Preset

Assassin's Creed Valhalla	78 +0%	78 +0%
Far Cry 5	85−90 +0%	85−90 +0%
Forza Horizon 4	190−200 +0%	190−200 +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%
Far Cry 5	45−50 +0%	45−50 +0%
Forza Horizon 4	220−230 +0%	220−230 +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%

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

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%

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

in Cyberpunk 2077, with 1080p resolution and the Low Preset, the RX 6600 is 5250% faster.

All in all, in popular games:

RX 6600 is ahead in 29 tests (41%)
there's a draw in 41 test (59%)

Pros & cons summary

Performance score	0.06	39.31
Recency	1 February 2006	13 October 2021
Maximum RAM amount	32 MB	8 GB
Chip lithography	110 nm	7 nm

RX 6600 has a 65416.7% higher aggregate performance score, an age advantage of 15 years, a 25500% higher maximum VRAM amount, and a 1471.4% more advanced lithography process.

The Radeon RX 6600 is our recommended choice as it beats the GeForce Go 6400 in performance tests.

Be aware that GeForce Go 6400 is a notebook card while Radeon RX 6600 is a desktop one.

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