T400 4 GB vs Radeon RX 6600 XT

Place in performance ranking	78	429
Place by popularity	91	not in top-100
Cost-effectiveness evaluation	48.55	8.60
Architecture	Navi / RDNA2 (2020−2022)	Turing (2018−2021)
GPU code name	Navi 23	TU117
Market segment	Desktop	Desktop
Release date	30 July 2021 (2 years ago)	6 May 2021 (3 years ago)
Launch price (MSRP)	$379	no data
Current price	$283 (0.7x MSRP)	$216

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6600 XT has 465% better value for money than T400 4 GB.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	2048	384
Core clock speed	1968 MHz	no data
Boost clock speed	2589 MHz	1425 MHz
Number of transistors	11,060 million	4,700 million
Manufacturing process technology	7 nm	12 nm
Power consumption (TDP)	160 (TGP) Watt	30 Watt
Texture fill rate	331.4	34.20

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 4.0 x8	PCIe 3.0 x16
Length	190 mm	no data
Width	2-slot	1-slot
Supplementary power connectors	1x 8-pin	None

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	GDDR6	GDDR6
Maximum RAM amount	8 GB	4 GB
Memory bus width	128 Bit	64 Bit
Memory clock speed	16000 MHz	10 GB/s
Memory bandwidth	256.0 GB/s	80 GB/s
Shared memory	-	no data

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 HDMI, 2x DisplayPort	3x mini-DisplayPort
HDMI	+	no data

API compatibility

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

DirectX	12.0 Ultimate (12_2)	12 (12_1)
Shader Model	6.5	6.6
OpenGL	4.6	4.6
OpenCL	2.1	3.0
Vulkan	1.2	1.2
CUDA	no data	7.5

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark performance 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 XT 42.70
+343%

T400 4 GB 9.63

Radeon RX 6600 XT outperforms T400 4 GB by 343% based on our aggregate benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. 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.

Benchmark coverage: 25%

RX 6600 XT 16490
+344%

T400 4 GB 3717

Radeon RX 6600 XT outperforms T400 4 GB by 344% in Passmark.

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	128 +374%	27−30 −374%
1440p	75 +369%	16−18 −369%
4K	41 +356%	9−10 −356%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

350−400

+343%

79
−343%

Full HD
Medium Preset

Assassin's Creed Odyssey	300−310 +305%	70−75 −305%
Assassin's Creed Valhalla	550−600 +326%	129 −326%
Battlefield 5	600−650 +338%	130−140 −338%
Call of Duty: Modern Warfare	350−400 +307%	85−90 −307%
Cyberpunk 2077	300−310 +285%	78 −285%
Far Cry 5	400−450 +340%	90−95 −340%
Far Cry New Dawn	450−500 +329%	100−110 −329%
Forza Horizon 4	650−700 +314%	150−160 −314%
Hitman 3	450−500 +317%	108 −317%
Horizon Zero Dawn	1250−1300 +333%	289 −333%
Metro Exodus	500−550 +324%	110−120 −324%
Red Dead Redemption 2	400−450 +300%	100−105 −300%
Shadow of the Tomb Raider	1100−1150 +328%	257 −328%
Watch Dogs: Legion	500−550 +317%	120 −317%

Full HD
High Preset

Assassin's Creed Odyssey	300−310 +305%	70−75 −305%
Assassin's Creed Valhalla	450−500 +325%	106 −325%
Battlefield 5	600−650 +338%	130−140 −338%
Call of Duty: Modern Warfare	350−400 +307%	85−90 −307%
Cyberpunk 2077	300−310 +295%	76 −295%
Far Cry 5	400−450 +340%	90−95 −340%
Far Cry New Dawn	450−500 +329%	100−110 −329%
Forza Horizon 4	650−700 +314%	150−160 −314%
Hitman 3	400−450 +326%	94 −326%
Horizon Zero Dawn	750−800 +331%	170−180 −331%
Metro Exodus	280−290 +338%	64 −338%
Red Dead Redemption 2	400−450 +300%	100−105 −300%
Shadow of the Tomb Raider	900−950 +331%	209 −331%
The Witcher 3: Wild Hunt	750−800 +326%	176 −326%
Watch Dogs: Legion	450−500 +341%	100−110 −341%

Full HD
Ultra Preset

Assassin's Creed Odyssey	300−310 +305%	70−75 −305%
Assassin's Creed Valhalla	300−310 +300%	75 −300%
Call of Duty: Modern Warfare	350−400 +307%	85−90 −307%
Cyberpunk 2077	300−310 +335%	69 −335%
Far Cry 5	400−450 +340%	90−95 −340%
Forza Horizon 4	650−700 +314%	150−160 −314%
Horizon Zero Dawn	650−700 +314%	157 −314%
Shadow of the Tomb Raider	800−850 +337%	183 −337%
The Witcher 3: Wild Hunt	400−450 +304%	99 −304%
Watch Dogs: Legion	270−280 +343%	61 −343%

Full HD
Epic Preset

Red Dead Redemption 2

400−450
+300%

100−105

−300%

1440p
High Preset

Battlefield 5	350−400 +322%	80−85 −322%
Far Cry New Dawn	400−450 +300%	100−105 −300%

1440p
Ultra Preset

Assassin's Creed Odyssey	200−210 +326%	45−50 −326%
Assassin's Creed Valhalla	240−250 +329%	56 −329%
Call of Duty: Modern Warfare	290−300 +339%	65−70 −339%
Cyberpunk 2077	170−180 +325%	40 −325%
Far Cry 5	450−500 +329%	105 −329%
Forza Horizon 4	350−400 +289%	90−95 −289%
Hitman 3	290−300 +333%	67 −333%
Horizon Zero Dawn	500−550 +331%	116 −331%
Metro Exodus	400−450 +308%	98 −308%
Shadow of the Tomb Raider	500−550 +324%	118 −324%
The Witcher 3: Wild Hunt	280−290 +338%	60−65 −338%
Watch Dogs: Legion	190−200 +332%	44 −332%

1440p
Epic Preset

Red Dead Redemption 2

300−310

+305%

70−75
−305%

4K
High Preset

Battlefield 5	190−200 +342%	40−45 −342%
Far Cry New Dawn	160−170 +332%	35−40 −332%
Hitman 3	140−150 +324%	33 −324%
Horizon Zero Dawn	240−250 +336%	55−60 −336%
Shadow of the Tomb Raider	170−180 +325%	40 −325%
The Witcher 3: Wild Hunt	230−240 +326%	54 −326%

4K
Ultra Preset

Assassin's Creed Odyssey	130−140 +333%	30−33 −333%
Assassin's Creed Valhalla	120−130 +329%	28 −329%
Call of Duty: Modern Warfare	120−130 +329%	27−30 −329%
Cyberpunk 2077	60−65 +329%	14 −329%
Far Cry 5	110−120 +340%	24−27 −340%
Forza Horizon 4	260−270 +333%	60−65 −333%
Horizon Zero Dawn	290−300 +339%	66 −339%
Metro Exodus	230−240 +334%	53 −334%
Watch Dogs: Legion	100−105 +317%	24 −317%

4K
Epic Preset

Red Dead Redemption 2

170−180

+336%

35−40
−336%

This is how RX 6600 XT and T400 4 GB compete in popular games:

RX 6600 XT is 374% faster in 1080p
RX 6600 XT is 369% faster in 1440p
RX 6600 XT is 356% faster in 4K

Pros & cons summary

Performance score	42.70	9.63
Recency	30 July 2021	6 May 2021
Maximum RAM amount	8 GB	4 GB
Chip lithography	7 nm	12 nm
Power consumption (TDP)	160 Watt	30 Watt