GeForce GTX 970 vs Radeon HD 8870 OEM
We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 970 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 GTX 970 Advantages
Released 1 years and 8 months late
Boost Clock1178MHz
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (224.4GB/s vs 153.6GB/s)
384 additional rendering cores
Lower TDP (148W vs 175W)
Score
Benchmark
FP32 (float)
GeForce GTX 970
+53%
3920
Radeon HD 8870 OEM
2560
Graphics Card
Sep 2014
Release Date
Jan 2013
GeForce 900
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1050 MHz
Base Clock
-
1178 MHz
Boost Clock
-
1753 MHz
Memory Clock
1200 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
224.4GB/s
Bandwidth
153.6GB/s
Render Config
-
Compute Units
20
1664
Shading Units
1280
104
TMUs
80
56
ROPs
32
48 KB (per SMM)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
512 KB
Theoretical Performance
65.97 GPixel/s
Pixel Rate
32.00 GPixel/s
122.5 GTexel/s
Texture Rate
80.00 GTexel/s
3.920 TFLOPS
FP32 (float)
2.560 TFLOPS
122.5 GFLOPS
FP64 (double)
160.0 GFLOPS
Board Design
148W
TDP
175W
300 W
Suggested PSU
450 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
1x HDMI 1.4a
2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
2x 6-pin
Graphics Processor
GM204
GPU Name
Pitcairn
GM204-200-A1
GPU Variant
Pitcairn XT
(215-0828047)
(215-0828047)
Maxwell 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5.2 billion
Transistors
2.8 billion
398 mm²
Die Size
212 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.3
Vulkan
1.2
5.2
CUDA
-
6.4
Shader Model
5.1