Radeon RX 6900 vs ATI HD 3650

Place in the ranking	1257	23
Place by popularity	not in top-100	not in top-100
Power efficiency	0.42	18.99
Architecture	TeraScale (2005−2013)	RDNA 2.0 (2020−2024)
GPU code name	RV635	Navi 21
Market segment	Desktop	Desktop
Release date	20 January 2008 (16 years ago)	28 October 2020 (4 years ago)

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	120	4608
Core clock speed	725 MHz	no data
Boost clock speed	no data	2105 MHz
Number of transistors	378 million	23,000 million
Manufacturing process technology	55 nm	7 nm
Power consumption (TDP)	65 Watt	255 Watt
Texture fill rate	5.800	606.2
Floating-point processing power	0.174 TFLOPS	19.4 TFLOPS
ROPs	4	64
TMUs	8	288

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 2.0 x16	PCIe 4.0 x16
Width	1-slot	2-slot
Supplementary power connectors	None	2x 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	GDDR3	GDDR6
Maximum RAM amount	256 MB	16 GB
Memory bus width	128 Bit	256 Bit
Memory clock speed	800 MHz	16 GB/s
Memory bandwidth	25.6 GB/s	512.0 GB/s

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	2x DVI, 1x S-Video	1x HDMI, 2x DisplayPort, 1x USB Type-C
HDMI	-	+

API compatibility

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

DirectX	10.1 (10_1)	12 Ultimate (12_2)
Shader Model	4.1	6.5
OpenGL	3.3	4.6
OpenCL	N/A	2.0
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.

ATI HD 3650 0.39

RX 6900 69.45
+17708%

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.

ATI HD 3650 150

RX 6900 26791
+17761%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary

Performance score	0.39	69.45
Recency	20 January 2008	28 October 2020
Maximum RAM amount	256 MB	16 GB
Chip lithography	55 nm	7 nm
Power consumption (TDP)	65 Watt	255 Watt

ATI HD 3650 has 292.3% lower power consumption.

RX 6900, on the other hand, has a 17707.7% higher aggregate performance score, an age advantage of 12 years, a 6300% higher maximum VRAM amount, and a 685.7% more advanced lithography process.

The Radeon RX 6900 is our recommended choice as it beats the Radeon HD 3650 in performance tests.

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