GeForce RTX 3070 vs Radeon HD 8870 OEM
We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 3070 and 2GB VRAM Radeon HD 8870 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 3070 's Advantages
Released 7 years and 8 months late
Boost Clock1725MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (448.0GB/s vs 153.6GB/s)
4608 additional rendering cores
Radeon HD 8870 OEM 's Advantages
Lower TDP (175W vs 220W)
Score
Benchmark
FP32 (float)
GeForce RTX 3070
+693%
20310
Radeon HD 8870 OEM
2560
Graphics Card
Sep 2020
Release Date
Jan 2013
GeForce 30
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1500 MHz
Base Clock
-
1725 MHz
Boost Clock
-
1750 MHz
Memory Clock
1200 MHz
Memory
8GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
448.0GB/s
Bandwidth
153.6GB/s
Render Config
-
Compute Units
20
46
SM Count
-
5888
Shading Units
1280
184
TMUs
80
96
ROPs
32
184
Tensor Cores
-
46
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per CU)
4 MB
L2 Cache
512 KB
Theoretical Performance
165.6 GPixel/s
Pixel Rate
32.00 GPixel/s
317.4 GTexel/s
Texture Rate
80.00 GTexel/s
20.31 TFLOPS
FP16 (half)
-
20.31 TFLOPS
FP32 (float)
2.560 TFLOPS
317.4 GFLOPS
FP64 (double)
160.0 GFLOPS
Board Design
220W
TDP
175W
550 W
Suggested PSU
450 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
1x 12-pin
Power Connectors
2x 6-pin
Graphics Processor
GA104
GPU Name
Pitcairn
GA104-300-A1
GPU Variant
Pitcairn XT
(215-0828047)
Ampere
Architecture
GCN 1.0
Samsung
Foundry
TSMC
8 nm
Process Size
28 nm
17.4 billion
Transistors
2.8 billion
392 mm²
Die Size
212 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.3
Vulkan
1.2
8.6
CUDA
-
6.6
Shader Model
5.1