ATI Radeon HD 4870 Mac Edition vs R9 295X2

Primary details

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

Place in the ranking	303	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.18	no data
Power efficiency	3.21	no data
Architecture	GCN 2.0 (2013−2017)	TeraScale (2005−2013)
GPU code name	Vesuvius	RV770
Market segment	Desktop	Desktop
Design	reference	no data
Release date	29 April 2014 (11 years ago)	6 January 2009 (16 years ago)
Launch price (MSRP)	$1,499	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	2816 ×2	800
Core clock speed	no data	750 MHz
Boost clock speed	1018 MHz	no data
Number of transistors	6,200 million	956 million
Manufacturing process technology	28 nm	55 nm
Power consumption (TDP)	500 Watt	150 Watt
Texture fill rate	179.2 ×2	30.00
Floating-point processing power	5.733 TFLOPS ×2	1.2 TFLOPS
ROPs	64 ×2	16
TMUs	176 ×2	40
L1 Cache	704 KB	160 KB
L2 Cache	1024 KB	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	PCIe 2.1 x16	no data
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Length	307 mm	250 mm
Width	2-slot	2-slot
Supplementary power connectors	2 x 8-pin	2x 6-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	GDDR5	GDDR5
Maximum RAM amount	8 GB ×2	512 MB
Memory bus width	512 Bit ×2	256 Bit
Memory clock speed	1250 MHz	850 MHz
Memory bandwidth	640 GB/s ×2	108.8 GB/s

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, 4x mini-DisplayPort	1x DVI, 1x mini-DisplayPort
Eyefinity	+	-
HDMI	+	-

Supported technologies

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

CrossFire	+	-
FreeSync	+	-
HD3D	+	-
LiquidVR	+	-
TressFX	+	-
UVD	+	-
DDMA audio	+	no data

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	6.3	4.1
OpenGL	4.6	3.3
OpenCL	2.0	1.1
Vulkan	+	N/A

Pros & cons summary

---

Recency	29 April 2014	6 January 2009
Maximum RAM amount	8 GB	512 MB
Chip lithography	28 nm	55 nm
Power consumption (TDP)	500 Watt	150 Watt

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.

---