Apple M1 7-Core GPU vs GeForce GTX 645 OEM

General info

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

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	Kepler (2012−2018)	no data
GPU code name	GK106	no data
Market segment	Desktop	Laptop
Release date	22 April 2013 (11 years ago)	10 November 2020 (3 years ago)

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	576	7
Core clock speed	824 MHz	1278 MHz
Number of transistors	2,540 million	no data
Manufacturing process technology	28 nm	5 nm
Power consumption (TDP)	65 Watt	no data
Texture fill rate	39.55	no data
Floating-point performance	949.2 gflops	no data

Size and compatibility

Information on GeForce GTX 645 OEM and Apple M1 7-Core GPU compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Interface	PCIe 3.0 x16	no data
Length	147 mm	no data
Width	1-slot	no data
Supplementary power connectors	None	no data

Memory

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	no data
Maximum RAM amount	1 GB	no data
Memory bus width	128 Bit	no data
Memory clock speed	4000 MHz	no data
Memory bandwidth	64 GB/s	no data
Shared memory	no data	+

Video outputs and ports

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	1x DVI, 1x HDMI, 1x DisplayPort	no data
HDMI	+	no data

API support

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

DirectX	12 (11_0)	no data
Shader Model	5.1	no data
OpenGL	4.6	no data
OpenCL	1.2	no data
Vulkan	1.1.126	no data
CUDA	3.0	no data

Advantages and disadvantages

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Recency	22 April 2013	10 November 2020
Chip lithography	28 nm	5 nm

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