Radeon HD 8670M vs GeForce GT 640 Rev. 2

Place in performance ranking	685	978
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.19	0.05
Architecture	Kepler 2.0 (2013−2015)	GCN (2011−2017)
GPU code name	GK208	Sun
Market segment	Desktop	Laptop
Release date	29 May 2013 (11 years ago)	16 November 2012 (11 years ago)
Launch price (MSRP)	$89	no data
Current price	$230 (2.6x MSRP)	$338

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

GT 640 Rev. 2 has 280% better value for money than HD 8670M.

Detailed specifications

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	384	384
Core clock speed	1046 MHz	775 MHz
Boost clock speed	no data	825 MHz
Number of transistors	915 million	690 million
Manufacturing process technology	28 nm	28 nm
Power consumption (TDP)	49 Watt	no data
Texture fill rate	33.47	19.50
Floating-point performance	803.3 gflops	633.6 gflops

Form factor & compatibility

Information on GeForce GT 640 Rev. 2 and Radeon HD 8670M 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.

Laptop size	no data	medium sized
Interface	PCIe 2.0 x8	PCIe 3.0 x8
Length	145 mm	no data
Width	1-slot	no data
Supplementary power connectors	None	no data

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	DDR3
Maximum RAM amount	1 GB	2 GB
Memory bus width	64 Bit	64 Bit
Memory clock speed	5008 MHz	2000 MHz
Memory bandwidth	40.06 GB/s	16 GB/s
Shared memory	no data	-

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	1x DVI, 1x HDMI, 1x VGA	No outputs
HDMI	+	no data

API compatibility

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

DirectX	12 (11_0)	12 (11_1)
Shader Model	5.1	5.1
OpenGL	4.6	4.6
OpenCL	1.2	1.2
Vulkan	1.1.126	1.2.131
CUDA	3.5	no data

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:

Full HD

30−35
+131%

−131%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

4−5
+300%

1−2

−300%

Full HD
Medium Preset

Assassin's Creed Odyssey	2−3	0−1
Call of Duty: Modern Warfare	4−5 +300%	1−2 −300%
Cyberpunk 2077	4−5 +300%	1−2 −300%
Far Cry 5	2−3	0−1
Far Cry New Dawn	3−4 +200%	1−2 −200%
Forza Horizon 4	3−4 +200%	1−2 −200%
Hitman 3	3−4 +200%	1−2 −200%
Horizon Zero Dawn	14−16 +180%	5−6 −180%
Red Dead Redemption 2	2−3	0−1
Shadow of the Tomb Raider	9−10 +200%	3−4 −200%
Watch Dogs: Legion	12−14 +200%	4−5 −200%

Full HD
High Preset

Assassin's Creed Odyssey	2−3	0−1
Call of Duty: Modern Warfare	4−5 +300%	1−2 −300%
Cyberpunk 2077	4−5 +300%	1−2 −300%
Far Cry 5	2−3	0−1
Far Cry New Dawn	3−4 +200%	1−2 −200%
Forza Horizon 4	3−4 +200%	1−2 −200%
Hitman 3	3−4 +200%	1−2 −200%
Horizon Zero Dawn	14−16 +180%	5−6 −180%
Red Dead Redemption 2	2−3	0−1
Shadow of the Tomb Raider	9−10 +200%	3−4 −200%
The Witcher 3: Wild Hunt	4−5 +300%	1−2 −300%
Watch Dogs: Legion	12−14 +200%	4−5 −200%

Full HD
Ultra Preset

Assassin's Creed Odyssey	2−3	0−1
Call of Duty: Modern Warfare	4−5 +300%	1−2 −300%
Cyberpunk 2077	4−5 +300%	1−2 −300%
Far Cry 5	2−3	0−1
Forza Horizon 4	3−4 +200%	1−2 −200%
Horizon Zero Dawn	14−16 +180%	5−6 −180%
Shadow of the Tomb Raider	9−10 +200%	3−4 −200%
The Witcher 3: Wild Hunt	4−5 +300%	1−2 −300%
Watch Dogs: Legion	12−14 +200%	4−5 −200%

Full HD
Epic Preset

Red Dead Redemption 2

2−3

0−1

1440p
High Preset

Battlefield 5	1−2	0−1
Far Cry New Dawn	1−2	0−1

1440p
Ultra Preset

Assassin's Creed Odyssey	1−2	0−1
Call of Duty: Modern Warfare	4−5 +300%	1−2 −300%
Cyberpunk 2077	1−2	0−1
Far Cry 5	2−3	0−1
Forza Horizon 4	1−2	0−1
Hitman 3	7−8 +250%	2−3 −250%
Horizon Zero Dawn	5−6 +400%	1−2 −400%
The Witcher 3: Wild Hunt	1−2	0−1

1440p
Epic Preset

Red Dead Redemption 2

4−5
+300%

1−2

−300%

4K
High Preset

Far Cry New Dawn	1−2	0−1
Horizon Zero Dawn	1−2	0−1

4K
Ultra Preset

Assassin's Creed Odyssey	2−3	0−1
Assassin's Creed Valhalla	0−1	0−1
Call of Duty: Modern Warfare	0−1	0−1
Far Cry 5	0−1	0−1
Horizon Zero Dawn	1−2	0−1
Metro Exodus	4−5 +300%	1−2 −300%