NVIDIA A40 vs NVIDIA Tesla T4

Comparative analysis of NVIDIA A40 and NVIDIA Tesla T4 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: Geekbench - OpenCL, PassMark - G2D Mark, PassMark - G3D Mark, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

NVIDIA A40

NVIDIA Tesla T4

Differences

Reasons to consider the NVIDIA A40

Videocard is newer: launch date 2 year(s) 0 month(s) later
Around 30% higher core clock speed: 1305 MHz vs 1005 MHz
Around 15% higher boost clock speed: 1740 MHz vs 1515 MHz
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 8 nm vs 12 nm
3.2x better performance in Geekbench - OpenCL: 193429 vs 61276
Around 6% better performance in PassMark - G2D Mark: 627 vs 590
Around 35% better performance in PassMark - G3D Mark: 14665 vs 10833

Specifications (specs)
Launch date	5 Oct 2020 vs 13 September 2018
Core clock speed	1305 MHz vs 1005 MHz
Boost clock speed	1740 MHz vs 1515 MHz
Manufacturing process technology	8 nm vs 12 nm
Benchmarks
Geekbench - OpenCL	193429 vs 61276
PassMark - G2D Mark	627 vs 590
PassMark - G3D Mark	14665 vs 10833

Reasons to consider the NVIDIA Tesla T4

4x lower typical power consumption: 75 Watt vs 300 Watt
5.5x more memory clock speed: 10000 MHz vs 1812 MHz (14.5 Gbps effective)

Thermal Design Power (TDP)	75 Watt vs 300 Watt
Memory clock speed	10000 MHz vs 1812 MHz (14.5 Gbps effective)

Compare benchmarks

GPU 1: NVIDIA A40
GPU 2: NVIDIA Tesla T4

Geekbench - OpenCL

GPU 1

GPU 2

193429

61276

PassMark - G2D Mark

GPU 1

GPU 2

627

590

PassMark - G3D Mark

GPU 1

GPU 2

14665

10833

Name	NVIDIA A40	NVIDIA Tesla T4
Geekbench - OpenCL	193429	61276
PassMark - G2D Mark	627	590
PassMark - G3D Mark	14665	10833
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		127.622
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		3026.812
CompuBench 1.5 Desktop - T-Rex (Frames/s)		18.798
CompuBench 1.5 Desktop - Video Composition (Frames/s)		119.936
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		910.721
GFXBench 4.0 - Car Chase Offscreen (Frames)		14076
GFXBench 4.0 - Manhattan (Frames)		1976
GFXBench 4.0 - T-Rex (Frames)		1781
GFXBench 4.0 - Car Chase Offscreen (Fps)		14076
GFXBench 4.0 - Manhattan (Fps)		1976
GFXBench 4.0 - T-Rex (Fps)		1781

Compare specifications (specs)

	NVIDIA A40	NVIDIA Tesla T4
Essentials
Architecture	Ampere	Turing
Code name	GA102	TU104
Launch date	5 Oct 2020	13 September 2018
Place in performance rating	55	279
Type		Workstation
Technical info
Boost clock speed	1740 MHz	1515 MHz
Core clock speed	1305 MHz	1005 MHz
Manufacturing process technology	8 nm	12 nm
Peak Double Precision (FP64) Performance	1169 GFLOPS (1:32)
Peak Half Precision (FP16) Performance	37.42 TFLOPS (1:1)
Peak Single Precision (FP32) Performance	37.42 TFLOPS
Pipelines	10752
Pixel fill rate	194.9 GPixel/s
Texture fill rate	584.6 GTexel/s
Thermal Design Power (TDP)	300 Watt	75 Watt
Transistor count	28300 million	13,600 million
Video outputs and ports
Display Connectors	3x DisplayPort	No outputs
Compatibility, dimensions and requirements
Form factor	Dual-slot
Interface	PCIe 4.0 x16	PCIe 3.0 x16
Length	267 mm (10.5 inches)
Recommended system power (PSU)	700 Watt
Supplementary power connectors	8-pin EPS	None
Width	112 mm (4.4 inches)
API support
DirectX	12.2	12.0 (12_1)
OpenCL	3.0
OpenGL	4.6	4.6
Shader Model	6.6
Vulkan
Memory
Maximum RAM amount	48 GB
Memory bandwidth	695.8 GB/s
Memory bus width	384 bit
Memory clock speed	1812 MHz (14.5 Gbps effective)	10000 MHz
Memory type	GDDR6