Radeon RX 6600 XT vs R9 M270X

Place in performance ranking	716	79
Place by popularity	not in top-100	61
Cost-Effectiveness Evaluation	no data	47.49
Architecture	GCN 1.0 (2012−2020)	Navi / RDNA2 (2020−2022)
GPU code name	Venus	Navi 23
Market segment	Desktop	Desktop
Release date	21 March 2014 (10 years ago)	30 July 2021 (2 years ago)
Launch price (MSRP)	no data	$379
Current price	no data	$283 (0.7x MSRP)

Cost-Effectiveness Evaluation

Performance to price ratio. The higher, the better.

no data

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	640	2048
Compute units	10	no data
Core clock speed	725 MHz	1968 MHz
Boost clock speed	775 MHz	2589 MHz
Number of transistors	1,500 million	11,060 million
Manufacturing process technology	28 nm	7 nm
Power consumption (TDP)	no data	160 (TGP) Watt
Texture fill rate	31.00	331.4
Floating-point performance	1,536 gflops	no data

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).

Bus support	PCIe 3.0 x16	no data
Interface	PCIe 3.0 x16	PCIe 4.0 x8
Length	no data	190 mm
Width	no data	2-slot
Supplementary power connectors	no data	1x 8-pin

Memory type	GDDR5	GDDR6
Maximum RAM amount	4 GB	8 GB
Memory bus width	128 Bit	128 Bit
Memory clock speed	1125 MHz	16000 MHz
Memory bandwidth	72 GB/s	256.0 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	No outputs	1x HDMI, 2x DisplayPort
Eyefinity	1	no data
HDMI	no data	+

Supported Technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

AppAcceleration	-	no data
Enduro	-	no data
FreeSync	1	no data
HD3D	+	no data
PowerTune	+	no data
DualGraphics	1	no data
TrueAudio	-	no data
ZeroCore	+	no data
Switchable graphics	1	no data

API Compatibility

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

DirectX	DirectX® 11	12.0 Ultimate (12_2)
Shader Model	5.1	6.5
OpenGL	4.4	4.6
OpenCL	Not Listed	2.1
Vulkan	no data	1.2
Mantle	+	no data

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.

R9 M270X 3.11

RX 6600 XT 42.59
+1269%

RX 6600 XT outperforms R9 M270X by 1269% based on our aggregated 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%

R9 M270X 1204

RX 6600 XT 16486
+1269%

RX 6600 XT outperforms R9 M270X by 1269% in Passmark.