Home GPU Comparison AMD Radeon HD 8870 OEM vs AMD Radeon R5 340 OEM

AMD Radeon HD 8870 OEM vs AMD Radeon R5 340 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 1024MB VRAM Radeon R5 340 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870 OEM 's Advantages
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (153.6GB/s vs 36.80GB/s)
896 additional rendering cores
AMD Radeon R5 340 OEM 's Advantages
Released 2 years and 4 months late
Boost Clock780MHz
Lower TDP (65W vs 175W)

Score

Benchmark

FP32 (float)
Radeon HD 8870 OEM +327%
2.56 TFLOPS
Radeon R5 340 OEM
0.599 TFLOPS
VS

Graphics Card

Jan 2013
Release Date
May 2015
Sea Islands
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8

Clock Speeds

-
Base Clock
730 MHz
-
Boost Clock
780 MHz
1200 MHz
Memory Clock
1150 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
64bit
153.6GB/s
Bandwidth
36.80GB/s

Render Config

-
SM Count
-
20
Compute Units
6
1280
Shading Units
384
80
TMUs
24
32
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
128 KB

Theoretical Performance

32.00 GPixel/s
Pixel Rate
6.240 GPixel/s
80.00 GTexel/s
Texture Rate
18.72 GTexel/s
-
FP16 (half)
-
2.560 TFLOPS
FP32 (float)
599.0 GFLOPS
160.0 GFLOPS
FP64 (double)
37.44 GFLOPS

Graphics Processor

Pitcairn
GPU Name
Oland
Pitcairn XT (215-0828047)
GPU Variant
Oland PRO (215-0837015)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
0.95 billion
212 mm²
Die Size
77 mm²

Board Design

175W
TDP
65W
450 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x DisplayPort 1.2
2x 6-pin
Power Connectors
None

Graphics Features

12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
5.1
Shader Model
5.1

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