ATI Radeon HD 4670 vs GeForce GT 640M Mac Edition

Place in the ranking	1089	1104
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.01
Power efficiency	2.25	1.15
Architecture	Kepler (2012−2018)	TeraScale (2005−2013)
GPU code name	GK107	RV730
Market segment	Laptop	Desktop
Release date	3 February 2013 (11 years ago)	10 September 2008 (16 years ago)
Launch price (MSRP)	no data	$67

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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	384	320
Core clock speed	745 MHz	750 MHz
Number of transistors	1,270 million	514 million
Manufacturing process technology	28 nm	55 nm
Power consumption (TDP)	32 Watt	59 Watt
Texture fill rate	23.84	24.00
Floating-point processing power	0.5722 TFLOPS	0.48 TFLOPS
ROPs	8	8
TMUs	32	32

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 2.0 x16
Length	no data	193 mm
Width	no data	1-slot
Supplementary power connectors	no data	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	GDDR3
Maximum RAM amount	512 MB	512 MB
Memory bus width	64 Bit	128 Bit
Memory clock speed	1250 MHz	1000 MHz
Memory bandwidth	40 GB/s	32 GB/s

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

2x DVI, 1x S-Video

API compatibility

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

DirectX	12 (11_0)	10.1 (10_1)
Shader Model	5.1	4.1
OpenGL	4.6	3.3
OpenCL	1.2	1.1
Vulkan	1.1.126	N/A
CUDA	3.0	-

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary

Performance score	1.04	0.98
Recency	3 February 2013	10 September 2008
Chip lithography	28 nm	55 nm
Power consumption (TDP)	32 Watt	59 Watt

GT 640M Mac Edition has a 6.1% higher aggregate performance score, an age advantage of 4 years, a 96.4% more advanced lithography process, and 84.4% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between GeForce GT 640M Mac Edition and Radeon HD 4670.

Be aware that GeForce GT 640M Mac Edition is a notebook card while Radeon HD 4670 is a desktop one.

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