P30PH vs ATI Radeon HD 4250

Primary details

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

Place in the ranking	1397	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	0.89	no data
Architecture	TeraScale (2005−2013)	GCN 4.0 (2016−2020)
GPU code name	RV620	Polaris 20
Market segment	Desktop	Workstation
Release date	25 February 2009 (17 years ago)	no data

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	40	2048
Core clock speed	594 MHz	1120 MHz
Boost clock speed	no data	1206 MHz
Number of transistors	181 million	5,700 million
Manufacturing process technology	55 nm	14 nm
Power consumption (TDP)	25 Watt	180 Watt
Texture fill rate	2.376	154.4
Floating-point processing power	0.04752 TFLOPS	4.94 TFLOPS
ROPs	4	32
TMUs	4	128
L1 Cache	no data	512 KB
L2 Cache	64 KB	2 MB

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 3.0 x16
Length	no data	241 mm
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	DDR2	GDDR5
Maximum RAM amount	512 MB	4 GB
Memory bus width	64 Bit	256 Bit
Memory clock speed	396 MHz	2100 MHz
Memory bandwidth	6.336 GB/s	268.8 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 VGA, 1x S-Video	1x HDMI 2.0b
HDMI	-	+

API and SDK support

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

DirectX	10.1 (10_1)	12 (12_0)
Shader Model	4.1	6.7
OpenGL	3.3	4.6
OpenCL	N/A	2.1
Vulkan	N/A	1.3

Pros & cons summary

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Maximum RAM amount	512 MB	4 GB
Chip lithography	55 nm	14 nm
Power consumption (TDP)	25 Watt	180 Watt