NVIDIA GeForce RTX 4090 vs NVIDIA A40

Comparative analysis of NVIDIA GeForce RTX 4090 and NVIDIA A40 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: PassMark - G2D Mark, PassMark - G3D Mark, 3DMark Fire Strike - Graphics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/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), Geekbench - OpenCL, CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s).

NVIDIA GeForce RTX 4090

NVIDIA A40

Differences

Reasons to consider the NVIDIA GeForce RTX 4090

Videocard is newer: launch date 1 year(s) 11 month(s) later
Around 71% higher core clock speed: 2235 MHz vs 1305 MHz
Around 45% higher boost clock speed: 2520 MHz vs 1740 MHz
Around 52% higher pipelines: 16384 vs 10752
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 4 nm vs 8 nm
2.1x better performance in PassMark - G2D Mark: 1295 vs 627
2.6x better performance in PassMark - G3D Mark: 38576 vs 14665
Around 64% better performance in Geekbench - OpenCL: 317282 vs 193429

Specifications (specs)
Launch date	20 Sep 2022 vs 5 Oct 2020
Core clock speed	2235 MHz vs 1305 MHz
Boost clock speed	2520 MHz vs 1740 MHz
Pipelines	16384 vs 10752
Manufacturing process technology	4 nm vs 8 nm
Benchmarks
PassMark - G2D Mark	1295 vs 627
PassMark - G3D Mark	38576 vs 14665
Geekbench - OpenCL	317282 vs 193429

Reasons to consider the NVIDIA A40

453.2x more texture fill rate: 584.6 GTexel/s vs 1,290 GTexel/s
Around 50% lower typical power consumption: 300 Watt vs 450 Watt
2x more maximum memory size: 48 GB vs 24 GB
Around 38% higher memory clock speed: 1812 MHz (14.5 Gbps effective) vs 1313 MHz, 21 Gbps effective

Texture fill rate	584.6 GTexel/s vs 1,290 GTexel/s
Thermal Design Power (TDP)	300 Watt vs 450 Watt
Maximum memory size	48 GB vs 24 GB
Memory clock speed	1812 MHz (14.5 Gbps effective) vs 1313 MHz, 21 Gbps effective

Compare benchmarks

GPU 1: NVIDIA GeForce RTX 4090
GPU 2: NVIDIA A40

PassMark - G2D Mark

GPU 1

GPU 2

1295

627

PassMark - G3D Mark

GPU 1

GPU 2

38576

14665

Geekbench - OpenCL

GPU 1

GPU 2

317282

193429

Name	NVIDIA GeForce RTX 4090	NVIDIA A40
PassMark - G2D Mark	1295	627
PassMark - G3D Mark	38576	14665
3DMark Fire Strike - Graphics Score	36466
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	472.899
CompuBench 1.5 Desktop - T-Rex (Frames/s)	95.851
CompuBench 1.5 Desktop - Video Composition (Frames/s)	221.169
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4429.59
Geekbench - OpenCL	317282	193429
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	0

Compare specifications (specs)

	NVIDIA GeForce RTX 4090	NVIDIA A40
Essentials
Architecture	Ada Lovelace	Ampere
Code name	AD102	GA102
Launch date	20 Sep 2022	5 Oct 2020
Place in performance rating	8	54
Technical info
Boost clock speed	2520 MHz	1740 MHz
Core clock speed	2235 MHz	1305 MHz
Manufacturing process technology	4 nm	8 nm
Peak Double Precision (FP64) Performance	1,290 GFLOPS (1:64)	1169 GFLOPS (1:32)
Peak Half Precision (FP16) Performance	82.58 TFLOPS (1:1)	37.42 TFLOPS (1:1)
Peak Single Precision (FP32) Performance	82.58 TFLOPS	37.42 TFLOPS
Pipelines	16384	10752
Pixel fill rate	443.5 GPixel/s	194.9 GPixel/s
Texture fill rate	1,290 GTexel/s	584.6 GTexel/s
Thermal Design Power (TDP)	450 Watt	300 Watt
Transistor count	76300 million	28300 million
Video outputs and ports
Display Connectors	1x HDMI 2.1, 3x DisplayPort 1.4a	3x DisplayPort
Compatibility, dimensions and requirements
Form factor	Triple-slot	Dual-slot
Height	61 mm, 2.4 inches
Interface	PCIe 4.0 x16	PCIe 4.0 x16
Length	304 mm, 12 inches	267 mm (10.5 inches)
Recommended system power (PSU)	850 Watt	700 Watt
Supplementary power connectors	1x 16-pin	8-pin EPS
Width	137 mm, 5.4 inches	112 mm (4.4 inches)
API support
DirectX	12 Ultimate (12_2)	12.2
OpenCL	3.0	3.0
OpenGL	4.6	4.6
Shader Model	6.7	6.6
Vulkan
Memory
Maximum RAM amount	24 GB	48 GB
Memory bandwidth	1,008 GB/s	695.8 GB/s
Memory bus width	384 bit	384 bit
Memory clock speed	1313 MHz, 21 Gbps effective	1812 MHz (14.5 Gbps effective)
Memory type	GDDR6X	GDDR6