Radeon 540X vs R7 250XE

Primary details

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

Place in the ranking	not rated	756
Place by popularity	not in top-100	not in top-100
Power efficiency	no data	5.91
Architecture	GCN 1.0 (2012−2020)	GCN 4.0 (2016−2020)
GPU code name	Cape Verde	Lexa
Market segment	Desktop	Laptop
Release date	21 August 2014 (11 years ago)	5 September 2018 (7 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	640	512
Core clock speed	860 MHz	980 MHz
Boost clock speed	no data	1046 MHz
Number of transistors	1,500 million	2,200 million
Manufacturing process technology	28 nm	14 nm
Power consumption (TDP)	80 Watt	50 Watt
Texture fill rate	34.40	33.47
Floating-point processing power	1.101 TFLOPS	1.071 TFLOPS
ROPs	16	16
TMUs	40	32
L1 Cache	160 KB	128 KB
L2 Cache	256 KB	512 KB

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 3.0 x8
Width	1-slot	no data
Supplementary power connectors	None	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	GDDR5
Maximum RAM amount	1 GB	2 GB
Memory bus width	128 Bit	64 Bit
Memory clock speed	1125 MHz	1500 MHz
Memory bandwidth	72 GB/s	48 GB/s
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 DVI, 1x HDMI, 1x VGA	No outputs
HDMI	+	-

API and SDK support

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

DirectX	12 (11_1)	12 (12_0)
Shader Model	5.1	6.4
OpenGL	4.6	4.6
OpenCL	1.2	2.0
Vulkan	1.2.131	1.2.131

Pros & cons summary

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Recency	21 August 2014	5 September 2018
Maximum RAM amount	1 GB	2 GB
Chip lithography	28 nm	14 nm
Power consumption (TDP)	80 Watt	50 Watt