GeForce 8700M GT SLI vs GT 640

Place in the ranking	778	1156
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.20	no data
Power efficiency	3.24	0.95
Architecture	Kepler (2012−2018)	G8x (2007)
GPU code name	GK107	NB8E-SE
Market segment	Desktop	Laptop
Release date	5 June 2012 (12 years ago)	18 September 2007 (17 years ago)
Launch price (MSRP)	$99	no data

Cost-effectiveness evaluation

The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.

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	64
Core clock speed	902 MHz	625 MHz
Number of transistors	1,270 million	578 Million
Manufacturing process technology	28 nm	80 nm
Power consumption (TDP)	65 Watt	58 Watt
Texture fill rate	28.86	no data
Floating-point processing power	0.6927 TFLOPS	no data
ROPs	16	no data
TMUs	32	no data

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	no data	large
Interface	PCIe 3.0 x16	no data
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	DDR3	GDDR3
Maximum RAM amount	2 GB	1 GB
Memory bus width	128 Bit	128 Bit
Memory clock speed	891 MHz	800 MHz
Memory bandwidth	28.51 GB/s	no data
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 DisplayPort	no data
HDMI	+	-

API and SDK compatibility

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

DirectX	12 (11_0)	10
Shader Model	5.1	no data
OpenGL	4.6	no data
OpenCL	1.2	no data
Vulkan	1.1.126	-
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.

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	10−12 +0%	10−12 +0%
Cyberpunk 2077	3−4 +0%	3−4 +0%

Full HD
Medium Preset

Counter-Strike 2	10−12 +0%	10−12 +0%
Cyberpunk 2077	3−4 +0%	3−4 +0%
Forza Horizon 4	7−8 +0%	7−8 +0%
Red Dead Redemption 2	5−6 +0%	5−6 +0%

Full HD
High Preset

Counter-Strike 2	10−12 +0%	10−12 +0%
Cyberpunk 2077	3−4 +0%	3−4 +0%
Far Cry 5	9−10 +0%	9−10 +0%
Fortnite	2−3 +0%	2−3 +0%
Forza Horizon 4	7−8 +0%	7−8 +0%
PLAYERUNKNOWN'S BATTLEGROUNDS	10−11 +0%	10−11 +0%
Red Dead Redemption 2	5−6 +0%	5−6 +0%
The Witcher 3: Wild Hunt	6−7 +0%	6−7 +0%
World of Tanks	20−22 +0%	20−22 +0%

Full HD
Ultra Preset

Counter-Strike 2	10−12 +0%	10−12 +0%
Cyberpunk 2077	3−4 +0%	3−4 +0%
Far Cry 5	9−10 +0%	9−10 +0%
Forza Horizon 4	7−8 +0%	7−8 +0%
PLAYERUNKNOWN'S BATTLEGROUNDS	10−11 +0%	10−11 +0%

1440p
High Preset

Counter-Strike 2	4−5 +0%	4−5 +0%
PLAYERUNKNOWN'S BATTLEGROUNDS	4−5 +0%	4−5 +0%
World of Tanks	3−4 +0%	3−4 +0%

1440p
Ultra Preset

Cyberpunk 2077	3−4 +0%	3−4 +0%
Far Cry 5	5−6 +0%	5−6 +0%
The Witcher 3: Wild Hunt	4−5 +0%	4−5 +0%
Valorant	5−6 +0%	5−6 +0%

4K
High Preset

Dota 2	14−16 +0%	14−16 +0%
Grand Theft Auto V	14−16 +0%	14−16 +0%
PLAYERUNKNOWN'S BATTLEGROUNDS	2−3 +0%	2−3 +0%
The Witcher 3: Wild Hunt	14−16 +0%	14−16 +0%

4K
Ultra Preset

Battlefield 5	1−2 +0%	1−2 +0%
Cyberpunk 2077	2−3 +0%	2−3 +0%
Dota 2	14−16 +0%	14−16 +0%
Valorant	1−2 +0%	1−2 +0%

All in all, in popular games:

there's a draw in 35 tests (100%)

Pros & cons summary

Performance score	2.95	0.77
Recency	5 June 2012	18 September 2007
Maximum RAM amount	2 GB	1 GB
Chip lithography	28 nm	80 nm
Power consumption (TDP)	65 Watt	58 Watt

GT 640 has a 283.1% higher aggregate performance score, an age advantage of 4 years, a 100% higher maximum VRAM amount, and a 185.7% more advanced lithography process.

8700M GT SLI, on the other hand, has 12.1% lower power consumption.

The GeForce GT 640 is our recommended choice as it beats the GeForce 8700M GT SLI in performance tests.

Be aware that GeForce GT 640 is a desktop card while GeForce 8700M GT SLI is a notebook one.

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