NVIDIA GeForce RTX 4080 vs NVIDIA A40

Comparative analysis of NVIDIA GeForce RTX 4080 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, Geekbench - OpenCL, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s).

NVIDIA GeForce RTX 4080

NVIDIA A40

Differences

Reasons to consider the NVIDIA GeForce RTX 4080

Videocard is newer: launch date 1 year(s) 11 month(s) later
Around 69% higher core clock speed: 2205 MHz vs 1305 MHz
Around 44% higher boost clock speed: 2505 MHz vs 1740 MHz
Around 30% higher texture fill rate: 761.5 GTexel/s vs 584.6 GTexel/s
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 4 nm vs 8 nm
Around 97% better performance in PassMark - G2D Mark: 1236 vs 627
2.4x better performance in PassMark - G3D Mark: 34500 vs 14665
Around 24% better performance in Geekbench - OpenCL: 240557 vs 193656

Specifications (specs)
Launch date	20 Sep 2022 vs 5 Oct 2020
Core clock speed	2205 MHz vs 1305 MHz
Boost clock speed	2505 MHz vs 1740 MHz
Texture fill rate	761.5 GTexel/s vs 584.6 GTexel/s
Manufacturing process technology	4 nm vs 8 nm
Benchmarks
PassMark - G2D Mark	1236 vs 627
PassMark - G3D Mark	34500 vs 14665
Geekbench - OpenCL	240557 vs 193656

Reasons to consider the NVIDIA A40

Around 11% higher pipelines: 10752 vs 9728
Around 7% lower typical power consumption: 300 Watt vs 320 Watt
3x more maximum memory size: 48 GB vs 16 GB
Around 29% higher memory clock speed: 1812 MHz (14.5 Gbps effective) vs 1400 MHz, 22.4 Gbps effective

Pipelines	10752 vs 9728
Thermal Design Power (TDP)	300 Watt vs 320 Watt
Maximum memory size	48 GB vs 16 GB
Memory clock speed	1812 MHz (14.5 Gbps effective) vs 1400 MHz, 22.4 Gbps effective

Compare benchmarks

GPU 1: NVIDIA GeForce RTX 4080
GPU 2: NVIDIA A40

PassMark - G2D Mark

GPU 1

GPU 2

1236

627

PassMark - G3D Mark

GPU 1

GPU 2

34500

14665

Geekbench - OpenCL

GPU 1

GPU 2

240557

193656

Name	NVIDIA GeForce RTX 4080	NVIDIA A40
PassMark - G2D Mark	1236	627
PassMark - G3D Mark	34500	14665
3DMark Fire Strike - Graphics Score	6567
Geekbench - OpenCL	240557	193656
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	722.769
CompuBench 1.5 Desktop - T-Rex (Frames/s)	72.795
CompuBench 1.5 Desktop - Video Composition (Frames/s)	272.641

Compare specifications (specs)

	NVIDIA GeForce RTX 4080	NVIDIA A40
Essentials
Architecture	Ada Lovelace	Ampere
Code name	AD103	GA102
Launch date	20 Sep 2022	5 Oct 2020
Place in performance rating	14	58
Technical info
Boost clock speed	2505 MHz	1740 MHz
Core clock speed	2205 MHz	1305 MHz
Manufacturing process technology	4 nm	8 nm
Peak Double Precision (FP64) Performance	761.5 GFLOPS (1:64)	1169 GFLOPS (1:32)
Peak Half Precision (FP16) Performance	48.74 TFLOPS (1:1)	37.42 TFLOPS (1:1)
Peak Single Precision (FP32) Performance	48.74 TFLOPS	37.42 TFLOPS
Pipelines	9728	10752
Pixel fill rate	280.6 GPixel/s	194.9 GPixel/s
Texture fill rate	761.5 GTexel/s	584.6 GTexel/s
Thermal Design Power (TDP)	320 Watt	300 Watt
Transistor count	45900 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	310 mm, 12.2 inches	267 mm (10.5 inches)
Recommended system power (PSU)	700 Watt	700 Watt
Supplementary power connectors	1x 16-pin	8-pin EPS
Width	140 mm, 5.5 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	16 GB	48 GB
Memory bandwidth	716.8 GB/s	695.8 GB/s
Memory bus width	256 bit	384 bit
Memory clock speed	1400 MHz, 22.4 Gbps effective	1812 MHz (14.5 Gbps effective)
Memory type	GDDR6X	GDDR6