ATI Radeon Xpress 1250 vs RX 580

Primary details

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

Place in the ranking	241	not rated
Place by popularity	1	not in top-100
Cost-effectiveness evaluation	18.87	no data
Power efficiency	8.62	no data
Architecture	GCN 4.0 (2016−2020)	R400 (2004−2008)
GPU code name	Polaris 20	RS690
Market segment	Desktop	Laptop
Release date	18 April 2017 (7 years ago)	28 February 2007 (17 years ago)
Launch price (MSRP)	$229	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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	4
Core clock speed	1257 MHz	400 MHz
Boost clock speed	1340 MHz	400 MHz
Number of transistors	5,700 million	120 million
Manufacturing process technology	14 nm	80 nm
Power consumption (TDP)	185 Watt	no data
Texture fill rate	193.0	1.600
Floating-point processing power	6.175 TFLOPS	no data
ROPs	32	4
TMUs	144	4

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	PCIe 1.0 x16
Length	241 mm	no data
Width	2-slot	no data
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	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

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, 3x DisplayPort	No outputs
HDMI	+	-

API compatibility

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

DirectX	12 (12_0)	9.0b (9_2)
Shader Model	6.4	no data
OpenGL	4.6	2.0
OpenCL	2.0	N/A
Vulkan	1.2.131	N/A

Synthetic benchmark performance

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

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Pros & cons summary

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Recency	18 April 2017	28 February 2007
Chip lithography	14 nm	80 nm

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