Home GPU Comparison AMD Radeon HD 7870 XT vs ATI Radeon HD 5770 X2

AMD Radeon HD 7870 XT vs ATI Radeon HD 5770 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 1024MB VRAM Radeon HD 5770 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages
Released 2 years and 1 months late
Boost Clock975MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (192.0GB/s vs 76.80GB/s)
736 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 7870 XT +120%
2.995 TFLOPS
Radeon HD 5770 X2
1.36 TFLOPS
VS

Graphics Card

Nov 2012
Release Date
Oct 2010
Southern Islands
Generation
Evergreen
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

925 MHz
Base Clock
-
975 MHz
Boost Clock
-
1500 MHz
Memory Clock
1200 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
192.0GB/s
Bandwidth
76.80GB/s

Render Config

24
Compute Units
10
-
-
-
1536
Shading Units
800
96
TMUs
40
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

31.20 GPixel/s
Pixel Rate
13.60 GPixel/s
93.60 GTexel/s
Texture Rate
34.00 GTexel/s
-
-
-
2.995 TFLOPS
FP32 (float)
1360 GFLOPS
748.8 GFLOPS
FP64 (double)
-

Board Design

185W
TDP
Unknown
450 W
Suggested PSU
200 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
2x 6-pin
Power Connectors
-

Graphics Processor

Tahiti
GPU Name
Juniper
Tahiti LE (215-0821122)
GPU Variant
Juniper XT (215-0754013)
GCN 1.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
4.313 billion
Transistors
1.04 billion
352 mm²
Die Size
166 mm²

Graphics Features

12 (11_1)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
1.2
OpenCL
1.2
1.2
Vulkan
N/A
-
-
-
5.1
Shader Model
5.0

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