ATI Mobility Radeon HD 4850 Mac Edition vs RX 480

Primary details

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

Place in the ranking	306	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	13.65	no data
Power efficiency	10.48	no data
Architecture	GCN 4.0 (2016−2020)	TeraScale (2005−2013)
GPU code name	Ellesmere	M98
GCN generation	4th Gen	no data
Market segment	Desktop	Laptop
Design	reference	no data
Release date	29 June 2016 (9 years ago)	28 August 2009 (16 years ago)
Launch price (MSRP)	$229	no data

Cost-effectiveness evaluation

The higher the ratio, the better. We use the manufacturer's recommended prices.

Performance to price scatter graph

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	800
Compute units	36	no data
Core clock speed	1120 MHz	503 MHz
Boost clock speed	1266 MHz	no data
Number of transistors	5,700 million	956 million
Manufacturing process technology	14 nm	55 nm
Power consumption (TDP)	150 Watt	no data
Texture fill rate	182.3	20.12
Floating-point processing power	5.834 TFLOPS	0.8048 TFLOPS
ROPs	32	16
TMUs	144	40
L1 Cache	576 KB	160 KB
L2 Cache	2 MB	256 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).

Bus support	n/a	no data
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Length	240 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 6-pin	no data
Bridgeless CrossFire	+	-

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	GDDR3
Maximum RAM amount	8 GB	512 MB
Memory bus width	256 Bit	256 Bit
Memory clock speed	8000 MHz	850 MHz
Memory bandwidth	224 GB/s	54.4 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 HDMI 2.0b, 3x DisplayPort 1.4a	No outputs
Eyefinity	+	-
HDMI	2.0	-
DisplayPort support	1.4HDR	-

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

AppAcceleration	n/a	-
CrossFire	+	-
Enduro	n/a	-
FRTC	+	-
FreeSync	+	-
HD3D	n/a	-
LiquidVR	+	-
PowerTune	+	-
TressFX	+	-
TrueAudio	n/a	-
ZeroCore	+	-
UVD	+	-
VCE	+	-

API and SDK support

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

DirectX	DirectX® 12	10.1 (10_1)
Shader Model	6.7	4.1
OpenGL	4.5	3.3
OpenCL	2.0	1.1
Vulkan	+	N/A
Mantle	n/a	-

Pros & cons summary

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Recency	29 June 2016	28 August 2009
Maximum RAM amount	8 GB	512 MB
Chip lithography	14 nm	55 nm

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