Radeon Graphics 448SP Mobile vs RX 590 GME

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	GCN 4.0 (2016−2020)	GCN 5.1 (2018−2022)
GPU code name	Polaris 20	Barcelo
Market segment	Desktop	Laptop
Release date	9 March 2020 (6 years ago)	6 January 2022 (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	2304	448
Core clock speed	1257 MHz	300 MHz
Boost clock speed	1420 MHz	1800 MHz
Number of transistors	5,700 million	10,700 million
Manufacturing process technology	14 nm	7 nm
Power consumption (TDP)	175 Watt	45 Watt
Texture fill rate	204.5	50.40
Floating-point processing power	6.543 TFLOPS	1.613 TFLOPS
ROPs	32	8
TMUs	144	28
L1 Cache	576 KB	no data
L2 Cache	2 MB	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).

Interface	PCIe 3.0 x16	IGP
Length	241 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 8-pin	no data

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	System Shared
Maximum RAM amount	8 GB	System Shared
Memory bus width	256 Bit	System Shared
Memory clock speed	2000 MHz	System Shared
Memory bandwidth	256.0 GB/s	no data
Shared memory	-	+

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	1x HDMI 2.0b, 3x DisplayPort 1.4a	Portable Device Dependent
HDMI	+	-

API and SDK support

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

DirectX	12 (12_0)	12 (12_1)
Shader Model	6.7	6.7 (6.4)
OpenGL	4.6	4.6
OpenCL	2.1	2.1
Vulkan	1.3	1.3

Pros & cons summary

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Recency	9 March 2020	6 January 2022
Chip lithography	14 nm	7 nm
Power consumption (TDP)	175 Watt	45 Watt