Home GPU Comparison AMD Radeon HD 7870 GHz Edition vs AMD Radeon HD 7750

AMD Radeon HD 7870 GHz Edition vs AMD Radeon HD 7750

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 1024MB VRAM Radeon HD 7750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 GHz Edition 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (153.6GB/s vs 72.00GB/s)
768 additional rendering cores
AMD Radeon HD 7750 's Advantages
Lower TDP (55W vs 175W)

Score

Benchmark

FP32 (float)
Radeon HD 7870 GHz Edition +212%
2.56 TFLOPS
Radeon HD 7750
0.819 TFLOPS
VS

Graphics Card

Mar 2012
Release Date
Feb 2012
Southern Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
1200 MHz
Memory Clock
1125 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
153.6GB/s
Bandwidth
72.00GB/s

Render Config

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

Theoretical Performance

32.00 GPixel/s
Pixel Rate
12.80 GPixel/s
80.00 GTexel/s
Texture Rate
25.60 GTexel/s
-
-
-
2.560 TFLOPS
FP32 (float)
819.2 GFLOPS
160.0 GFLOPS
FP64 (double)
51.20 GFLOPS

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 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

Graphics Features

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

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