GeForce GT 645M vs Radeon HD 6730M

Place in the ranking	1014	842
Place by popularity	not in top-100	not in top-100
Power efficiency	2.71	5.19
Architecture	TeraScale 2 (2009−2015)	Kepler (2012−2018)
GPU code name	Whistler	GK107
Market segment	Laptop	Laptop
Release date	4 January 2011 (13 years ago)	1 October 2012 (12 years ago)

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	480	384
Core clock speed	725 MHz	Up to 710 MHz
Number of transistors	716 million	1,270 million
Manufacturing process technology	40 nm	28 nm
Power consumption (TDP)	35 Watt	32 Watt
Texture fill rate	17.40	22.69
Floating-point processing power	0.696 TFLOPS	0.5445 TFLOPS
ROPs	8	16
TMUs	24	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).

Laptop size	medium sized	medium sized
Bus support	no data	PCI Express 2.0, PCI Express 3.0
Interface	MXM-A (3.0)	PCIe 3.0 x16

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	GDDR3	DDR3\GDDR5
Maximum RAM amount	1 GB	2 GB
Memory bus width	128 Bit	128bit
Memory clock speed	800 MHz	900 MHz
Memory bandwidth	25.6 GB/s	Up to 64.0 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	No outputs
HDMI	-	+
HDCP	-	+
Maximum VGA resolution	no data	Up to 2048x1536

Supported technologies

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

3D Blu-Ray	-	+
Optimus	-	+

API compatibility

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

DirectX	11.2 (11_0)	12 API
Shader Model	5.0	5.1
OpenGL	4.4	4.5
OpenCL	1.2	1.1
Vulkan	N/A	1.1.126
CUDA	-	+

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

HD 6730M 1.38

GT 645M 2.42
+75.4%

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

HD 6730M 1141

GT 645M 1845
+61.7%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

HD 6730M 4438

GT 645M 7357
+65.8%

Gaming performance

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

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

900p	17 −76.5%	30 +76.5%
Full HD	23 +0%	23 +0%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

4−5

−25%

5−6
+25%

Full HD
Medium Preset

Assassin's Creed Odyssey	6−7 −33.3%	8−9 +33.3%
Call of Duty: Modern Warfare	4−5 −50%	6−7 +50%
Cyberpunk 2077	4−5 −25%	5−6 +25%
Far Cry 5	1−2 −300%	4−5 +300%
Far Cry New Dawn	3−4 −100%	6−7 +100%
Forza Horizon 4	3−4 −267%	10−12 +267%
Hitman 3	6−7 −16.7%	7−8 +16.7%
Horizon Zero Dawn	14−16 −42.9%	20−22 +42.9%
Red Dead Redemption 2	2−3 −150%	5−6 +150%
Shadow of the Tomb Raider	8−9 −37.5%	10−12 +37.5%
Watch Dogs: Legion	30−35 −12.1%	35−40 +12.1%

Full HD
High Preset

Assassin's Creed Odyssey	6−7 −33.3%	8−9 +33.3%
Call of Duty: Modern Warfare	4−5 −50%	6−7 +50%
Cyberpunk 2077	4−5 −25%	5−6 +25%
Far Cry 5	1−2 −300%	4−5 +300%
Far Cry New Dawn	3−4 −100%	6−7 +100%
Forza Horizon 4	3−4 −267%	10−12 +267%
Hitman 3	6−7 −16.7%	7−8 +16.7%
Horizon Zero Dawn	14−16 −42.9%	20−22 +42.9%
Red Dead Redemption 2	2−3 −150%	5−6 +150%
Shadow of the Tomb Raider	8−9 −37.5%	10−12 +37.5%
The Witcher 3: Wild Hunt	10−12 −18.2%	12−14 +18.2%
Watch Dogs: Legion	30−35 −12.1%	35−40 +12.1%

Full HD
Ultra Preset

Assassin's Creed Odyssey	6−7 −33.3%	8−9 +33.3%
Call of Duty: Modern Warfare	4−5 −50%	6−7 +50%
Cyberpunk 2077	4−5 −25%	5−6 +25%
Far Cry 5	1−2 −300%	4−5 +300%
Forza Horizon 4	3−4 −267%	10−12 +267%
Hitman 3	6−7 −16.7%	7−8 +16.7%
Horizon Zero Dawn	14−16 −42.9%	20−22 +42.9%
Shadow of the Tomb Raider	8−9 −37.5%	10−12 +37.5%
The Witcher 3: Wild Hunt	10−12 −18.2%	12−14 +18.2%
Watch Dogs: Legion	30−35 −12.1%	35−40 +12.1%

Full HD
Epic Preset

Red Dead Redemption 2

2−3

−150%

5−6
+150%

1440p
High Preset

Battlefield 5	1−2 −300%	4−5 +300%
Far Cry New Dawn	2−3 −100%	4−5 +100%

1440p
Ultra Preset

Assassin's Creed Odyssey	1−2 −100%	2−3 +100%
Call of Duty: Modern Warfare	0−1	1−2
Cyberpunk 2077	1−2 +0%	1−2 +0%
Far Cry 5	1−2 −200%	3−4 +200%
Hitman 3	7−8 +0%	7−8 +0%
Horizon Zero Dawn	5−6 −20%	6−7 +20%
The Witcher 3: Wild Hunt	1−2 −100%	2−3 +100%
Watch Dogs: Legion	6−7 −133%	14−16 +133%

1440p
Epic Preset

Red Dead Redemption 2

4−5

−25%

5−6
+25%

4K
High Preset

Far Cry New Dawn

0−1

1−2

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −100%	2−3 +100%
Assassin's Creed Valhalla	1−2 +0%	1−2 +0%
Call of Duty: Modern Warfare	0−1	1−2
Far Cry 5	0−1	1−2

4K
Epic Preset

Red Dead Redemption 2

3−4

+0%

3−4

+0%

Full HD
Medium Preset

Battlefield 5	3−4 +0%	3−4 +0%
Metro Exodus	1−2 +0%	1−2 +0%

Full HD
High Preset

Battlefield 5	3−4 +0%	3−4 +0%
Metro Exodus	1−2 +0%	1−2 +0%

4K
High Preset

Battlefield 5

0−1

4K
Ultra Preset

Watch Dogs: Legion

0−1

This is how HD 6730M and GT 645M compete in popular games:

GT 645M is 76% faster in 900p
A tie in 1080p

Here's the range of performance differences observed across popular games:

in Far Cry 5, with 1080p resolution and the Medium Preset, the GT 645M is 300% faster.

All in all, in popular games:

GT 645M is ahead in 44 tests (85%)
there's a draw in 8 tests (15%)

Pros & cons summary

Performance score	1.38	2.42
Recency	4 January 2011	1 October 2012
Maximum RAM amount	1 GB	2 GB
Chip lithography	40 nm	28 nm
Power consumption (TDP)	35 Watt	32 Watt

GT 645M has a 75.4% higher aggregate performance score, an age advantage of 1 year, a 100% higher maximum VRAM amount, a 42.9% more advanced lithography process, and 9.4% lower power consumption.

The GeForce GT 645M is our recommended choice as it beats the Radeon HD 6730M in performance tests.

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