NVIDIA GeForce GT 640 Rev. 2 vs AMD Radeon HD 7750

General info

Comparison of graphics card architecture, market segment, value for money and other general parameters.

Place in performance rating	556	not rated
Value for money	0.66	no data
Architecture	GCN 1.0 (2012−2020)	Kepler 2.0 (2013−2015)
GPU code name	Cape Verde	GK208
Market segment	Desktop	Desktop
Design	reference	no data
Release date	15 February 2012 (10 years old)	29 May 2013 (9 years old)
Launch price (MSRP)	$109	$89
Current price	$170 (1.6x MSRP)	$230 (2.6x MSRP)

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	512	384
Core clock speed	no data	1046 MHz
Boost clock speed	800 MHz	no data
Number of transistors	1,500 million	915 million
Manufacturing process technology	28 nm	28 nm
Thermal design power (TDP)	75 Watt	49 Watt
Texture fill rate	25.60	33.47
Floating-point performance	819.2 gflops	803.3 gflops

Compatibility, dimensions and requirements

Information on 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).

Bus support	PCIe 2.1 x16	no data
Interface	PCIe 3.0 x16	PCIe 2.0 x8
Length	168 mm	145 mm
Width	1-slot	1-slot
Supplementary power connectors	None	None

Memory

Parameters of memory installed: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated VRAM and use a shared part of system RAM.

Memory type	GDDR5	GDDR5
Maximum RAM amount	1 GB	1 GB
Memory bus width	128 Bit	64 Bit
Memory clock speed	1125 MHz	5008 MHz
Memory bandwidth	72 GB/s	40.06 GB/s

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	1x DVI, 1x HDMI, 1x VGA
Eyefinity	1	no data
HDMI	+	+
DisplayPort support	+	no data

Technologies

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

AppAcceleration	-	no data
CrossFire	1	no data
Enduro	-	no data
FreeSync	1	no data
HD3D	-	no data
PowerTune	-	no data
TrueAudio	-	no data
ZeroCore	-	no data

API support

APIs supported, including particular versions of those APIs.

DirectX	DirectX® 11	12 (11_0)
Shader Model	5.1	5.1
OpenGL	4.6	4.6
OpenCL	1.2	1.2
Vulkan	no data	1.1.126
Mantle	-	no data
CUDA	no data	3.5

Mining hashrates

Cryptocurrency mining performance of Radeon HD 7750 and GeForce GT 640 Rev. 2. Usually measured in megahashes per second.

Bitcoin / BTC (SHA256)

98 Mh/s

44 Mh/s

Advantages and disadvantages

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Recency	15 February 2012	29 May 2013
Cost	$109	$89
Memory bus width	128	64
Pipelines / CUDA cores	512	384
Memory bandwidth	72	40.06
Thermal design power (TDP)	75 Watt	49 Watt

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