ATI Radeon HD 4870 Mac Edition vs GeForce GTX 770M

Primary details

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

Place in the ranking	540	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.49	no data
Power efficiency	6.63	no data
Architecture	Kepler (2012−2018)	TeraScale (2005−2013)
GPU code name	GK106	RV770
Market segment	Laptop	Desktop
Release date	30 May 2013 (11 years ago)	6 January 2009 (15 years ago)
Launch price (MSRP)	$189.99	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	960	800
Core clock speed	811 MHz	750 MHz
Boost clock speed	797 MHz	no data
Number of transistors	2,540 million	956 million
Manufacturing process technology	28 nm	55 nm
Power consumption (TDP)	75 Watt	150 Watt
Texture fill rate	63.76	30.00
Floating-point processing power	1.53 TFLOPS	1.2 TFLOPS
ROPs	24	16
TMUs	80	40

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).

Laptop size	large	no data
Bus support	PCI Express 3.0, PCI Express 2.0	no data
Interface	MXM-B (3.0)	PCIe 2.0 x16
Length	no data	250 mm
Width	no data	2-slot
Supplementary power connectors	None	2x 6-pin
SLI options	+	-

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	3 GB	512 MB
Standard memory configuration	GDDR5	no data
Memory bus width	192 Bit	256 Bit
Memory clock speed	2000 MHz	850 MHz
Memory bandwidth	96.0 GB/s	108.8 GB/s
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	No outputs	1x DVI, 1x mini-DisplayPort
eDP 1.2 signal support	Up to 3840x2160	no data
LVDS signal support	Up to 1920x1200	no data
VGA аnalog display support	Up to 2048x1536	no data
DisplayPort Multimode (DP++) support	Up to 3840x2160	no data
HDMI	+	-
HDCP content protection	+	-
7.1 channel HD audio on HDMI	+	-
TrueHD and DTS-HD audio bitstreaming	+	-

Supported technologies

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

Blu-Ray 3D Support	+	-
H.264, VC1, MPEG2 1080p video decoder	+	-
Optimus	+	-
3D Vision / 3DTV Play	+	-

API compatibility

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

DirectX	12 API	10.1 (10_1)
Shader Model	5.1	4.1
OpenGL	4.5	3.3
OpenCL	1.1	1.1
Vulkan	1.1.126	N/A
CUDA	+	-

Pros & cons summary

---

Recency	30 May 2013	6 January 2009
Maximum RAM amount	3 GB	512 MB
Chip lithography	28 nm	55 nm
Power consumption (TDP)	75 Watt	150 Watt

---

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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.

---