Radeon HD 7870 GHz Edition vs GeForce GTS 450 Rev. 3
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 1024MB VRAM GeForce GTS 450 Rev. 3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 7870 GHz Edition 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (153.6GB/s vs 22.40GB/s)
1136 additional rendering cores
GeForce GTS 450 Rev. 3 's Advantages
Lower TDP (106W vs 175W)
Score
Benchmark
FP32 (float)
Radeon HD 7870 GHz Edition
+467%
2560
GeForce GTS 450 Rev. 3
451
Graphics Card
Mar 2012
Release Date
Jul 2012
Southern Islands
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1200 MHz
Memory Clock
700 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
153.6GB/s
Bandwidth
22.40GB/s
Render Config
20
Compute Units
-
-
SM Count
3
1280
Shading Units
144
80
TMUs
24
32
ROPs
16
16 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
256 KB
Theoretical Performance
32.00 GPixel/s
Pixel Rate
4.698 GPixel/s
80.00 GTexel/s
Texture Rate
18.79 GTexel/s
2.560 TFLOPS
FP32 (float)
451.0 GFLOPS
160.0 GFLOPS
FP64 (double)
37.58 GFLOPS
Board Design
175W
TDP
106W
450 W
Suggested PSU
300 W
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
Outputs
2x DVI
1x mini-HDMI 1.3a
2x 6-pin
Power Connectors
-
Graphics Processor
Pitcairn
GPU Name
GF116
Pitcairn XT
(215-0828047)
GPU Variant
GF116-200-KA-A1
GCN 1.0
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
2.8 billion
Transistors
1.17 billion
212 mm²
Die Size
238 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
2.1
5.1
Shader Model
5.1