Home GPU Comparison AMD Radeon HD 8870 OEM vs AMD Radeon R7 250

AMD Radeon HD 8870 OEM vs AMD Radeon R7 250

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 1024MB VRAM Radeon R7 250 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 28.80GB/s)
768 additional rendering cores
AMD Radeon R7 250 's Advantages
Released 9 months late
Lower TDP (55W vs 175W)

Score

Benchmark

FP32 (float)
Radeon HD 8870 OEM +257%
2.56 TFLOPS
Radeon R7 250
0.717 TFLOPS
VS

Graphics Card

Jan 2013
Release Date
Oct 2013
Sea Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
-
-
Boost Clock
-
1200 MHz
Memory Clock
900 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
153.6GB/s
Bandwidth
28.80GB/s

Render Config

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

Theoretical Performance

32.00 GPixel/s
Pixel Rate
11.20 GPixel/s
80.00 GTexel/s
Texture Rate
22.40 GTexel/s
-
FP16 (half)
-
2.560 TFLOPS
FP32 (float)
716.8 GFLOPS
160.0 GFLOPS
FP64 (double)
44.80 GFLOPS

Graphics Processor

Pitcairn
GPU Name
Cape Verde
Pitcairn XT (215-0828047)
GPU Variant
Cape Verde PRO
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
1.5 billion
212 mm²
Die Size
123 mm²

Board Design

175W
TDP
55W
450 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 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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