GeForce GTX 970 vs Radeon HD 7870 XT
We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 970 and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 970 's Advantages
Released 1 years and 10 months late
Boost Clock has increased by 21% (1178MHz vs 975MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (224.4GB/s vs 192.0GB/s)
128 additional rendering cores
Lower TDP (148W vs 185W)
Score
Benchmark
FP32 (float)
GeForce GTX 970
+30%
3920
Radeon HD 7870 XT
2995
3DMark Time Spy
GeForce GTX 970
+105%
3646
Radeon HD 7870 XT
1773
3DMark Time Spy Extreme
GeForce GTX 970
+378%
1683
Radeon HD 7870 XT
352
Graphics Card
Sep 2014
Release Date
Nov 2012
GeForce 900
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1050 MHz
Base Clock
925 MHz
1178 MHz
Boost Clock
975 MHz
1753 MHz
Memory Clock
1500 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
224.4GB/s
Bandwidth
192.0GB/s
Render Config
-
Compute Units
24
1664
Shading Units
1536
104
TMUs
96
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
31.20 GPixel/s
122.5 GTexel/s
Texture Rate
93.60 GTexel/s
3.920 TFLOPS
FP32 (float)
2.995 TFLOPS
122.5 GFLOPS
FP64 (double)
748.8 GFLOPS
Board Design
148W
TDP
185W
300 W
Suggested PSU
450 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
2x 6-pin
Graphics Processor
GM204
GPU Name
Tahiti
GM204-200-A1
GPU Variant
Tahiti LE
(215-0821122)
Maxwell 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5.2 billion
Transistors
4.313 billion
398 mm²
Die Size
352 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