AMD Radeon HD 7870 XT vs NVIDIA A40 PCIe
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Oct 2020
Generation
Southern Islands
Tesla
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
925 MHz
1305 MHz
Boost Clock
975 MHz
1740 MHz
Memory Clock
1500 MHz
1812 MHz
Memory
Memory Size
2GB
48GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
384bit
Bandwidth
192.0GB/s
695.8GB/s
Render Config
Compute Units
24
—
Shading Units
1536
10752
TMUs
96
336
ROPs
32
112
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
6 MB
SM Count
—
84
Tensor Cores
—
336
RT Cores
—
84
Theoretical Performance
Pixel Rate
31.20 GPixel/s
194.9 GPixel/s
Texture Rate
93.60 GTexel/s
584.6 GTexel/s
FP32 (float)
2.995 TFLOPS
37.42 TFLOPS
FP64 (double)
748.8 GFLOPS
584.6 GFLOPS
FP16 (half)
—
37.42 TFLOPS
Graphics Processor
GPU Name
Tahiti
GA102
GPU Variant
Tahiti LE(215-0821122)
—
Architecture
GCN 1.0
Ampere
Foundry
TSMC
Samsung
Process Size
28 nm
8 nm
Transistors
4.313 billion
28.3 billion
Die Size
352 mm²
628 mm²
Board Design
TDP
185W
300W
Suggested PSU
450 W
700 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
3x DisplayPort 1.4a
Power Connectors
2x 6-pin
8-pin EPS
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.3
Shader Model
5.1
6.6
CUDA
—
8.6
▲ Specs Compare
Data sourced from official specifications and benchmark tests.