T1000 vs GeForce GT 640M Mac Edition

Place in the ranking	1094	275
Place by popularity	not in top-100	not in top-100
Power efficiency	2.27	27.64
Architecture	Kepler (2012−2018)	Turing (2018−2022)
GPU code name	GK107	TU117
Market segment	Laptop	Workstation
Release date	3 February 2013 (11 years ago)	6 May 2021 (3 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	384	896
Core clock speed	745 MHz	1065 MHz
Boost clock speed	no data	1395 MHz
Number of transistors	1,270 million	4,700 million
Manufacturing process technology	28 nm	12 nm
Power consumption (TDP)	32 Watt	50 Watt
Texture fill rate	23.84	78.12
Floating-point processing power	0.5722 TFLOPS	2.5 TFLOPS
ROPs	8	32
TMUs	32	56

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).

Interface	PCIe 3.0 x16	PCIe 3.0 x16
Width	no data	1-slot
Supplementary power connectors	no data	None

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	GDDR6
Maximum RAM amount	512 MB	4 GB
Memory bus width	64 Bit	128 Bit
Memory clock speed	1250 MHz	1250 MHz
Memory bandwidth	40 GB/s	160.0 GB/s

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

4x mini-DisplayPort

API compatibility

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

DirectX	12 (11_0)	12 (12_1)
Shader Model	5.1	6.6
OpenGL	4.6	4.6
OpenCL	1.2	3.0
Vulkan	1.1.126	1.2
CUDA	3.0	7.5

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

2−3

−2750%

57
+2750%

Pros & cons summary

Performance score	1.04	19.83
Recency	3 February 2013	6 May 2021
Maximum RAM amount	512 MB	4 GB
Chip lithography	28 nm	12 nm
Power consumption (TDP)	32 Watt	50 Watt

GT 640M Mac Edition has 56.3% lower power consumption.

T1000, on the other hand, has a 1806.7% higher aggregate performance score, an age advantage of 8 years, a 700% higher maximum VRAM amount, and a 133.3% more advanced lithography process.

The T1000 is our recommended choice as it beats the GeForce GT 640M Mac Edition in performance tests.

Be aware that GeForce GT 640M Mac Edition is a notebook card while T1000 is a workstation one.

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