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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon HD 7850

58%
58%

AMD Radeon HD 7970 GHz Edition

173%
173%
AMD Radeon HD 7970 GHz Edition is approximately 115% faster

Technical Specifications

SpecificationAMD Radeon HD 7850AMD Radeon HD 7970 GHz Edition
Graphics ProcessorDifferent
Pitcairn
Tahiti
CoresDifferent
1024
2048
TMUsDifferent
64
128
ROPs
32
32
Memory SizeDifferent
2 GB
3 GB
Memory Type
GDDR5
GDDR5
Bus WidthDifferent
256 bit
384 bit

Graphics Processor

FeatureAMD Radeon HD 7850AMD Radeon HD 7970 GHz Edition
GPU NameDifferent
Pitcairn
Tahiti
GPU VariantDifferent
Pitcairn PRO(215-0828062)
Tahiti XT2(215-0821065)
Architecture
GCN 1.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
TransistorsDifferent
2,800 million
4,313 million
DensityDifferent
13.2M / mm²
12.3M / mm²
Die SizeDifferent
212 mm²
352 mm²
Chip PackageDifferent
FCBGA-1737
N/A

Graphics Card

FeatureAMD Radeon HD 7850AMD Radeon HD 7970 GHz Edition
Release DateDifferent
Mar 5th, 2012
Jun 22nd, 2012
GenerationDifferent
Southern Islands(HD 7800)
Southern Islands(HD 7900)
Predecessor
Northern Islands
Northern Islands
Successor
Sea Islands
Sea Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
249 USD
499 USD
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
ReviewsDifferent
71 in our database
191 in our database

Clock Speeds

FeatureAMD Radeon HD 7850AMD Radeon HD 7970 GHz Edition
GPU ClockDifferent
860 MHz
N/A
Memory ClockDifferent
1200 MHz4.8 Gbps effective
1500 MHz6 Gbps effective
Base ClockDifferent
N/A
1000 MHz
Boost ClockDifferent
N/A
1050 MHz

Memory

FeatureAMD Radeon HD 7850AMD Radeon HD 7970 GHz Edition
Memory SizeDifferent
2 GB
3 GB
Memory Type
GDDR5
GDDR5
Memory BusDifferent
256 bit
384 bit
BandwidthDifferent
153.6 GB/s
288.0 GB/s

Render Config

FeatureAMD Radeon HD 7850AMD Radeon HD 7970 GHz Edition
Shading UnitsDifferent
1024
2048
TMUsDifferent
64
128
ROPs
32
32
Compute UnitsDifferent
16
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 CacheDifferent
512 KB
768 KB

Theoretical Performance

FeatureAMD Radeon HD 7850AMD Radeon HD 7970 GHz Edition
Pixel RateDifferent
27.52 GPixel/s
33.60 GPixel/s
Texture RateDifferent
55.04 GTexel/s
134.4 GTexel/s
FP32 (float)Different
1.761 TFLOPS
4.301 TFLOPS
FP64 (double)Different
110.1 GFLOPS (1:16)
1,075.2 GFLOPS (1:4)

Board Design

FeatureAMD Radeon HD 7850AMD Radeon HD 7970 GHz Edition
Slot Width
Dual-slot
Dual-slot
LengthDifferent
210 mm8.3 inches
275 mm10.8 inches
TDPDifferent
130 W
300 W
Suggested PSUDifferent
300 W
700 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power ConnectorsDifferent
1x 6-pin
1x 6-pin + 1x 8-pin
Board NumberDifferent
109-C40147-00, 109-C40337-00A
109-C38637-00
HeightDifferent
N/A
111 mm4.4 inches
WidthDifferent
N/A
38 mm1.5 inches

Graphics Features

FeatureAMD Radeon HD 7850AMD Radeon HD 7970 GHz Edition
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1 (1.2)
2.1 (1.2)
Vulkan
1.2.170
1.2.170
Shader Model
6.5 (5.1)
6.5 (5.1)

Comparison Summary

7
Specifications Compared
8
Feature Categories
49
Detailed Features

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