GeForce GT 645M vs Radeon HD 7670A

In this comparison between GeForce GT 645M and Radeon HD 7670A you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GT 645M will be the best choice, for others Radeon HD 7670A will be their preference. Study the comparison tables below and make your choice.

GeForce GT 645M Check Price

Radeon HD 7670A

GeForce GT 645M is a Laptop Graphics Card

Note: GeForce GT 645M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GT 645M here:

GeForce GT 645M Laptops

Main Specs

	GeForce GT 645M	Radeon HD 7670A
Power consumption (TDP)	32 Watt	45 Watt
Interface	PCIe 3.0 x16	MXM-A (3.0)
Memory type	DDR3\GDDR5	GDDR5
Maximum RAM amount	2 GB	1 GB
Display Connectors	No outputs	No outputs
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Radeon HD 7670A has 40% more power consumption, than GeForce GT 645M.
GeForce GT 645M is connected by PCIe 3.0 x16, and Radeon HD 7670A uses MXM-A (3.0) interface.
GeForce GT 645M has 1 GB more memory, than Radeon HD 7670A.
GeForce GT 645M is used in Laptops, and Radeon HD 7670A - in Desktops.
GeForce GT 645M is build with Kepler architecture, and Radeon HD 7670A - with TeraScale 2.
GeForce GT 645M is manufactured by 28 nm process technology, and Radeon HD 7670A - by 40 nm process technology.
Memory clock speed of Radeon HD 7670A is 2200 MHz higher, than GeForce GT 645M.

Game benchmarks


high / 1080p	1−2	1−2
ultra / 1080p	0−1	0−1
QHD / 1440p	0−1	0−1
low / 720p	12−14	12−14
medium / 1080p	2−3	3−4
The average gaming FPS of Radeon HD 7670A in Assassin's Creed Odyssey is 20% more, than GeForce GT 645M.
ultra / 1080p	3−4	4−5
QHD / 1440p	0−1	0−1
low / 720p	12−14	16−18
medium / 1080p	4−5	5−6
The average gaming FPS of Radeon HD 7670A in Battlefield 5 is 28% more, than GeForce GT 645M.
low / 768p	50−55	45−50
high / 1080p	45−50	40−45
QHD / 1440p	0−1	0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 11% more, than Radeon HD 7670A.
low / 768p	110−120	120−130
medium / 768p	85−90	90−95
ultra / 1080p	35−40	40−45
QHD / 1440p	−	24−27
4K / 2160p	10−11	18−20
high / 768p	60−65	65−70
The average gaming FPS of Radeon HD 7670A in Counter-Strike: Global Offensive is 11% more, than GeForce GT 645M.
low / 768p	70−75	85−90
ultra / 1080p	14−16	16−18
medium / 1080p	45−50	40−45
The average gaming FPS of Radeon HD 7670A in Cyberpunk 2077 is 8% more, than GeForce GT 645M.
low / 768p	70−75	75−80
medium / 768p	45−50	50−55
ultra / 1080p	18−20	24−27
The average gaming FPS of Radeon HD 7670A in Dota 2 is 10% more, than GeForce GT 645M.
high / 1080p	2−3	2−3
ultra / 1080p	2−3	2−3
4K / 2160p	0−1	0−1
low / 720p	10−11	12−14
medium / 1080p	3−4	3−4
The average gaming FPS of Radeon HD 7670A in Far Cry 5 is 25% more, than GeForce GT 645M.
high / 1080p	−	10−11
ultra / 1080p	5−6	5−6
QHD / 1440p	1−2	2−3
low / 720p	45−50	50−55
medium / 1080p	8−9	10−12
The average gaming FPS of Radeon HD 7670A in Fortnite is 13% more, than GeForce GT 645M.
high / 1080p	3−4	4−5
QHD / 1440p	0−1	0−1
low / 720p	14−16	16−18
medium / 1080p	6−7	7−8
The average gaming FPS of Radeon HD 7670A in Forza Horizon 4 is 12% more, than GeForce GT 645M.
low / 768p	40−45	45−50
high / 1080p	3−4	5−6
ultra / 1080p	2−3	2−3
QHD / 1440p	0−1	0−1
medium / 720p	35−40	35−40
The average gaming FPS of Radeon HD 7670A in Grand Theft Auto V is 9% more, than GeForce GT 645M.
high / 1080p	1−2	1−2
ultra / 1080p	0−1	0−1
4K / 2160p	0−1	0−1
low / 720p	3−4	5−6
medium / 1080p	2−3	3−4
The average gaming FPS of Radeon HD 7670A in Metro Exodus is 50% more, than GeForce GT 645M.
low / 768p	85−90	90−95
high / 1080p	55−60	85−90
ultra / 1080p	−	70−75
medium / 1080p	−	90−95
The average gaming FPS of Radeon HD 7670A in Minecraft is 25% more, than GeForce GT 645M.
high / 1080p	14−16	−
ultra / 1080p	12−14	12−14
low / 720p	24−27	27−30
medium / 1080p	14−16	14−16
The average gaming FPS of Radeon HD 7670A in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 645M.
ultra / 1080p	3−4	4−5
QHD / 1440p	0−1	0−1
low / 720p	4−5	6−7
The average gaming FPS of Radeon HD 7670A in Red Dead Redemption 2 is 25% more, than GeForce GT 645M.
low / 768p	8−9	12−14
medium / 768p	7−8	9−10
high / 1080p	3−4	4−5
ultra / 1080p	3−4	3−4
4K / 2160p	0−1	0−1
The average gaming FPS of Radeon HD 7670A in The Witcher 3: Wild Hunt is 40% more, than GeForce GT 645M.
low / 768p	70−75	75−80
medium / 768p	35−40	35−40
ultra / 1080p	12−14	16−18
high / 768p	30−33	30−35
The average gaming FPS of Radeon HD 7670A in World of Tanks is 7% more, than GeForce GT 645M.

Full Specs

	GeForce GT 645M	Radeon HD 7670A
Architecture	Kepler	TeraScale 2
Code name	N13P-GS	Turks
Type	Laptop	Desktop
Release date	22 March 2012	5 January 2012
Pipelines	384	480
Core clock speed		600 MHz
Transistor count	1,270 million	716 million
Manufacturing process technology	28 nm	40 nm
Texture fill rate	22.7 billion/sec	14.40
Floating-point performance	544.5 gflops	576.0 gflops
Memory bus width	128bit	128 Bit
Memory clock speed	1800 MHz	4000 MHz
Memory bandwidth		64 GB/s
Shared memory	-
DirectX	12 API	11.2 (11_0)
Shader Model	5.1	5.0
OpenGL	4.5	4.4
OpenCL	1.1	1.2
Vulkan	1.1.126	N/A
CUDA	+
CUDA cores	384
Bus support	PCI Express 2.0, PCI Express 3.0
HDMI	+
HDCP	+
Maximum VGA resolution	Up to 2048x1536
3D Blu-Ray	+
Bitcoin / BTC (SHA256)	19 Mh/s
Laptop size	medium sized
Optimus	+
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GeForce GT 645M vs Radeon HD 7670A

GeForce GT 645M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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